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Introduction to shell commands and DBCS
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Shell command descriptions
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alias — Display or create a command alias
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amblist — Display formatted information from object and executable files for diagnostic purposes
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ar — Create or maintain library archives
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as — Use the HLASM assembler to produce object files
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asa — Interpret ASA/FORTRAN carriage control
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at — Run a command at a specified time
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autoload — Indicate function name not defined
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automount — Configure the automount facility
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awk — Process programs written in the awk language
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basename — Return the nondirectory components of a path name
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batch — Run commands when the system is not busy
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bc — Use the arbitrary-precision arithmetic calculation language
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bg — Move a job to the background
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bpxmtext — Display reason code text
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bpxtrace — Activate or deactivate traces for processes
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break — Exit from a loop in a shell script
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c++ — Compile C and C++ source code, link-edit and create an executable file
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c89 — Compiler invocation using host environment variables
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c99 — Compile C source code, link-edit and create an executable file
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cal — Display a calendar for a month or year
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calendar — Display all current appointments
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cancel - Cancel print queue requests (stub command)
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captoinfo — Print the terminal entries in the terminfo database
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cat — Concatenate or display text files
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cc — Compile C source code, link-edit and create an executable file
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cd — Change the working directory
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ceebldtx — Transform message source files into assembler source files
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chaudit — Change audit flags for a file
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chcp — Set or query ASCII/EBCDIC code pages for the terminal
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chgrp — Change the group owner of a file or directory
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chlabel — Set the security label of files and directories
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chmod — Change the mode of a file or directory
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chmount — Change the mount attributes of a file system
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chown — Change the owner or group of a file or directory
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chroot — Change the root directory for the execution of a command
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chtag — Change file tag information
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cksum — Calculate and display checksums and byte counts
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clear — Clear the screen of all previous output
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cmp — Compare two files
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col — Remove reverse line feeds
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: (colon) — Do nothing, successfully
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comm — Show and select or reject lines common to two files
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command — Run a simple command
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compress — Lempel-Ziv file compression
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confighfs — Invoke the vfs_pfsctl function for HFS file systems
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configstk — Configure the AF_UEINT stack
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configstrm — Set and query the STREAMS physical file system configuration
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continue — Skip to the next iteration of a loop in a shell script
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copytree — Make a copy of a file hierarchy while preserving all file attributes
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cp — Copy a file
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cpio — Copy in/out file archives
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cron daemon — Run commands at specified dates and times
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crontab — Schedule regular background jobs
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csplit — Split text files
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ctags — Create tag files for ex, more, and vi
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cu — Call up another system (stub only)
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cut — Cut out selected fields from each line of a file
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cxx — Compile C and C++ source code, link-edit and create an executable file
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date — Display the date and time
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dbgld — Create a module map for debugging
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dbx — Use the debugger
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? subcommand for dbx: Search backward for a pattern
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/ subcommand for dbx: Search forward for a pattern
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alias subcommand for dbx: Display and assign subcommand aliases
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args subcommand for dbx: Display program arguments
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assign subcommand for dbx: Assign a value to a variable
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case subcommand for dbx: Change how dbx interprets symbols
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catch subcommand for dbx: Start trapping a signal
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clear subcommand for dbx: Remove all stops at a specified source line
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cleari subcommand for dbx: Remove all breakpoints at an address
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condition subcommand for dbx: Display a list of active condition variables
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cont subcommand for dbx: Continue program execution
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delete subcommand for dbx: Remove traces and stops
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detach subcommand for dbx: Continue program execution without dbx control
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display memory subcommand for dbx: Display the contents of memory
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down subcommand for dbx: Move the current function down the stack
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dump subcommand for dbx: Display the names and values of variables in a procedure
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edit subcommand for dbx: Invoke an editor
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file subcommand for dbx: Change the current source file
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func subcommand for dbx: Change the current function
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goto subcommand for dbx: Run a specified source line
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gotoi subcommand for dbx: Change the program counter address
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help subcommand for dbx: Display a subcommand synopsis
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history subcommand for dbx: Display commands in a history list
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ignore subcommand for dbx: Stop trapping a signal
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list subcommand for dbx: Display lines of the current source file
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listfiles subcommand for dbx: Display the list of source files
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listfuncs subcommand for dbx: Display the list of functions
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listi subcommand for dbx: List instructions from the program
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map subcommand for dbx: Display load characteristics
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move subcommand for dbx: Display or change the next line to be shown with the list command
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multproc subcommand for dbx: Enable or disable multiprocess debugging
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mutex subcommand for dbx: Display a list of active mutex objects
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next subcommand for dbx: Run the program up to the next source line
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nexti subcommand for dbx: Run the program up to the next machine instruction
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object subcommand for dbx: Load an object file
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onload subcommand for dbx: Evaluate stop/trace after DLL load
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plugin subcommand for dbx: Pass the specified command to the plug-in parameter
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pluginload subcommand for dbx: Load the specified plug-in
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pluginunload subcommand for dbx: Unload the specified plug-in
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print subcommand for dbx: Print the value of an expression
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prompt subcommand for dbx: Change the dbx command prompt
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quit subcommand for dbx: End the dbx debugging session
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readwritelock subcommand for dbx: Display a list of active read/write lock objects
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record subcommand for dbx: Append user's commands to a file
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registers subcommand for dbx: Display the value of registers
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rerun subcommand for dbx: Begin running a program with the previous arguments
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return subcommand for dbx: Continue running a program until a return is reached
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run subcommand for dbx: Run a program
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set subcommand for dbx: Define a value for a dbx variable
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sh subcommand for dbx: Pass a command to the shell for execution
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skip subcommand for dbx: Continue from the current stopping point
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source subcommand for dbx: Read subcommands from a file
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status subcommand for dbx: Display the active trace and stop subcommands
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step subcommand for dbx: Run one or more source lines
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stepi subcommand for dbx: Run one or more machine instructions
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stop subcommand for dbx: Stop execution of a program
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stopi subcommand for dbx: Stop at a specified location
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thread subcommand for dbx: Display a list of active threads
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trace subcommand for dbx: Print tracing information
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tracei subcommand for dbx: Turn on tracing
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unalias subcommand for dbx: Remove an alias
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unset subcommand for dbx: Delete a variable
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up subcommand for dbx: Move the current function up the stack
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use subcommand for dbx: Set the list of directories to be searched
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whatis subcommand for dbx: Display the type of program components
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where subcommand for dbx: List active procedures and functions
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whereis subcommand for dbx: Display the full qualifications of symbols
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which subcommand for dbx: Display the full qualification of an identifier
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dd — Convert and copy a file
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df — Display the amount of free space in the file system
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diff — Compare two text files and show the differences
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dircmp — Compare directories
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dirname — Return the directory components of a path name
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. (dot) — Run a shell file in the current environment
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dspcat — Display all or part of a message catalog
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dspmsg — Display selected messages from message catalogs
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du — Summarize usage of file space
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echo — Write arguments to standard output
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ed — Use the ed line-oriented text editor
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edcmtext — Display errnojr reason code text
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egrep — Search a file for a specified pattern
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env — Display or set environment variables for a process
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eval — Construct a command by concatenating arguments
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ex — Use the ex text editor
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exec — Run a command and open, close, or copy the file descriptors
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exit — Return to the shell's parent process or to TSO/E
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expand — Expand tabs to spaces
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export — Set a variable for export
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expr — Evaluate arguments as an expression
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exrecover daemon — Retrieve vi and ex files
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extattr — Set, reset, and display extended attributes for files
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false — Return a nonzero exit code
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fc — Process a command history list
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fg — Bring a job into the foreground
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fgrep — Search a file for a specified pattern
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file — Determine file type
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find — Find a file meeting specified criteria
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filecache — Manage file caches
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fold — Break lines into shorter lines
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functions — Display or assign attributes to functions
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fuser — List process IDs of processes with open files
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gencat — Create or modify message catalogs
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getconf — Get configuration values
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getfacl — Display owner, group, and access control list (ACL) entries
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getopts — Parse utility options
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grep — Search a file for a specified pattern
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hash — Create a tracked alias
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head — Display the first part of a file
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history — Display a command history list
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iconv — Convert characters from one code set to another
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id — Return the user identity
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inetd daemon — Provide service management for networks
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infocmp — Compare or print the terminal description
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integer — Mark each variable with an integer value
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ipcrm — Remove message queues, semaphore sets, or shared memory IDs
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ipcs — Report status of the interprocess communication facility
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jobs — Return the status of jobs in the current session
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join — Join two sorted textual relational databases
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kill — End a process or job, or send it a signal
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[ (left bracket) — Test for a condition
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ld — Link object files
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let — Evaluate an arithmetic expression
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lex — Generate a program for lexical tasks
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line — Copy one line of standard input
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link — Create a hard link to a file
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ln — Create a link to a file
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locale — Get locale-specific information
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localedef — Define the locale environment
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logger — Log messages
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logname — Return a user's login name
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lp — Send a file to a printer
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lpstat — Show status of print queues (stub command)
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ls — List file and directory names and attributes
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mail — Read and send mail messages
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mailx — Send or receive electronic mail
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make — Maintain program-generated and interdependent files
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makedepend — Generate source dependency information
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man — Display sections of the online reference manual
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mesg — Allow or refuse messages
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mkcatdefs — Preprocess a message source file
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mkdir — Make a directory
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mkfifo — Make a FIFO special file
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mknod — Make a FIFO or character special file
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more — Display files on a page-by-page basis
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mount — Logically mount a file system
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mv — Rename or move a file or directory
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newgrp — Change to a new group
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nice — Run a command at a different priority
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nl — Number lines in a file
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nm — Display symbol table of object, library, or executable files
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nohup — Start a process that is immune to hang ups
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obrowse — Browse a z/OS UNIX file
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od — Dump a file in a specified format
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oedit — Edit files in a z/OS UNIX file system
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pack — Compress files by Huffman coding
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passwd — Change user passwords or password phrases
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paste — Merge corresponding or subsequent lines of a file
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patch — Change a file using diff output
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pathchk — Check a path name
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pax — Interchange portable archives
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pcat — Unpack and display Huffman packed files
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pg — Display files interactively
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pr — Format a file in paginated form and send it to standard output
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print — Return arguments from the shell
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printenv — Display the values of environment variables
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printf — Write formatted output
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ps — Return the status of a process
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pwd — Return the working directory name
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r — Process a command history list
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read — Read a line from standard input
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readonly — Mark a variable as read-only
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renice — Change priorities of a running process
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return — Return from a shell function or . (dot) script
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rlogind — Validate rlogin requests
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rm — Remove a directory entry
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rmdir — Remove a directory
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runcat — Pipe output from mkcatdefs to gencat
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script — Makes a typescript of a terminal session
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sed — Start the sed noninteractive stream editor
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set — Set or unset command options and positional parameters
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setfacl — Set, remove, and change access control lists (ACLs)
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sh — Invoke a shell
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shedit — Interactive command and history editing in the shell
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shift — Shift positional parameters
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sleep — Suspend execution of a process for an interval of time
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skulker — Remove old files from a directory
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sort — Start the sort-merge utility
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spell — Detect spelling errors in files
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split — Split a file into manageable pieces
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stop — Suspend a process or job
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strings — Display printable strings in binary files
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strip — Remove unnecessary information from an executable file
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stty — Set or display terminal options
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su — Change the user ID associated with a session
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submit — Submit a batch job for background processing
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sum — Calculate and display checksums and block counts
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suspend — Send a SIGSTOP to the current shell
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sysvar — Display static system symbols
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tabs — Set tab stops
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tail — Display the last part of a file
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talk — Talk to another user
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tar — Manipulate the tar archive files to copy or back up a file
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tcsh — Invoke a C shell
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@ (at) built-in command for tcsh: Print the value of tcsh shell variables
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% (percent) built-in command for tcsh: Move jobs to the foreground or background
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alloc built-in command for tcsh: Show the amount of dynamic memory acquired
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bindkey built-in command for tcsh: List all bound keys
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builtins built-in command for tcsh: Prints the names of all built-in commands
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bye built-in command for tcsh: Terminate the login shell
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chdir built-in shell command for tcsh: Change the working directory
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complete built-in command for tcsh: List completions
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dirs built-in command for tcsh: Print the directory stack
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echotc built-in command for tcsh: Exercise the terminal capabilities in args
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filetest built-in command for tcsh: Apply the op file inquiry operator to a file
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glob built-in command for tcsh: Write each word to standard output
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hashstat built-in command for tcsh: Print a statistic line on hash table effectiveness
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hup built-in command for tcsh: Run command so it exits on a hang-up signal
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limit built-in command for tcsh: Limit consumption of processes
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log built-in command for tcsh: Print the watch tcsh shell variable
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login built-in command for tcsh: Terminate a login shell
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logout built-in command for tcsh: Terminate a login shell
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ls-F built-in command for tcsh: List files
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notify built-in command for tcsh: Notify user of job status changes
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onintr built-in command for tcsh: Control the action of the tcsh shell on interrupts
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popd built-in command for tcsh: Pop the directory stack
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pushd built-in command for tcsh: Make exchanges within directory stack
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rehash built-in command for tcsh: Recompute internal hash table
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repeat built-in command for tcsh: Execute command count times
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sched built-in command for tcsh: Print scheduled event list
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setenv built-in command for tcsh: Set environment variable name to value
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settc built-in command for tcsh: Tell tcsh shell the terminal capability cap value
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setty built-in command for tcsh: Control tty mode changes
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source built-in command for tcsh: Read and execute commands from name
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telltc built-in command for tcsh: List terminal capability values
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uncomplete built-in command for tcsh: Remove completions whose names match pattern
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unhash built-in command for tcsh: Disable use of internal hash table
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unlimit built-in command for tcsh: Remove resource limitations
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unsetenv built-in command for tcsh: Remove environmental variables that match pattern
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watchlog built-in command for tcsh: Print the watch shell variable
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where built-in command for tcsh: Report all instances of command
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which built-in command for tcsh: Display next executed command
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tee — Duplicate the output stream
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test — Test for a condition
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tic — Put terminal entries in the terminfo database
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time — Display processor and elapsed times for a command
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times — Get process and child process times
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touch — Change the file access and modification times
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tput — Change characteristics of terminals
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tr — Translate characters
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trap — Intercept abnormal conditions and interrupts
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true — Return a value of 0
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tso — Run a TSO/E command from the shell
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tsocmd — Run a TSO/E command from the shell (including authorized commands)
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tsort — Sort files topologically
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tty — Return the user's terminal name
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type — Tell how the shell interprets a name
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typeset — Assign attributes and values to variables
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uconvdef — Create binary conversion tables
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ulimit — Set process limits
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umask — Set or return the file mode creation mask
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unalias — Remove alias definitions
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uname — Display the name of the current operating system
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uncompress — Undo Lempel-Ziv compression of a file
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unexpand — Compress spaces into tabs
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uniq — Report or filter out repeated lines in a file
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unlink — Removes a directory entry
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unmount — Remove a file system from the file hierarchy
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unpack — Decode Huffman packed files
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unset — Unset values and attributes of variables and functions
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uptime — Report how long the system has been running
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uucc — Compile UUCP configuration files
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uucico daemon — Process UUCP file transfer requests
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uucp — Copy files between remote UUCP systems
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uucpd daemon — Invoke uucico for TCP/IP connections from remote UUCP systems
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uudecode — Decode a transmitted binary file
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uuencode — Encode a file for safe transmission
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uulog — Display log information about UUCP events
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uuname — Display list of remote UUCP systems
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uupick — Manage files sent by uuto and uucp
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uustat — Display status of pending UUCP transfers
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uuto — Copy files to users on remote UUCP systems
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uux — Request command execution on remote UUCP systems
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uuxqt daemon — Carry out command requests from remote UUCP systems
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vi — Use the display-oriented interactive text editor
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wait — Wait for a child process to end
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wall — Broadcast a message to logged-in users
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wc — Count newlines, words, and bytes
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whence — Tell how the shell interprets a command name
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who — Display information about current users
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whoami — Display your effective user name
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write — Write to another user
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writedown — Set or display user's write-down mode
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xlc — Compiler invocation using a customizable configuration file
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xlC — Compile C and C++ source code, link-edit and create an executable file
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xlc++ — Compile C and C++ source code, link-edit and create an executable file
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xargs — Construct an argument list and run a command
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yacc — Use the yacc compiler
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zcat — Uncompress and display data
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zlsof — Displays information about open files, sockets, and pipes
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TSO/E commands
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REXX system commands
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Summary of z/OS UNIX shell commands
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Summary of tcsh shell commands
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Regular expressions (regexp)
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Running shell scripts or executable files under MVS environments
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BPXCOPY: Copying a sequential or partitioned data set or PDSE member into an HFS file
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Localization
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Stub commands
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File formats
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Format of the TZ environment variable
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Environment variables
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Specifying MVS data set names in the shell environment
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Controlling text conversion for z/OS UNIX shell commands
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Additional dbx documentation
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Shell commands changed for UNIX03
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