$
set -t
$
ls -l
total: 5.102 gigabytes
-rwxrwxr-x  1 MARQUIS   0                     0 Oct 24 10:32 1.csv
...
$
set +t
$
cat qsh_trace
(1831) Tracing started at 17:08:23 on 02/27/2020
(1831) evalcmdpart2(): exitstatus=0
(1831) RunTraps(): debug_trap=0 err_trap=0
(1831) evaltree(): ending node=D9D68C1E1F:0027F0, type=1, evalskip=0, pendingsigs=0, exitstatus=0
(1831) showjobs(options=1): entry point
(1831) waitforproc(): waiting for pid=-1
(1831) waitforproc(): waitpid() failed, errno=3517
(1831) setinputstring(): setting input to string "$ "
(1831) pushfile(): current parsenleft=0, parsenextc=0x00, plinno=2
(1831) readtoken(): token word "$ "
(1831) pipeline(): entry point
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): token end of file
(1831) popfile(): popping file on fd=-1
(1831) popfile(): reset parsenleft=0, parsenextc=0x00, plinno=2
(1831) preadbuffer(): read 6 bytes from stdin
(1831) readtoken(): token word "ls"
(1831) pipeline(): entry point
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "ls"
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "ls"
(1831) readtoken(): reread token word "ls"
(1831) readtoken(): reread token word "ls"
(1831) readtoken(): token word "-l"
(1831) readtoken(): token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) showtree(): entry point
(1831) Node=0001, addr=D9D68C1E1F:0027F0, type=NCMD, backgnd=0, args=D9D68C1E1F:002760, redirect=NULL
(1831) Node=0002, addr=D9D68C1E1F:002760, type=NARG, lineno=2, quotetype=0, backquote=NULL, next=D9D68C1E1F:0027B0, textlen=2, text=
ls
(1831) Node=0003, addr=D9D68C1E1F:0027B0, type=NARG, lineno=2, quotetype=0, backquote=NULL, next=NULL, textlen=2, text=-l
(1831) evaltree(): starting node=D9D68C1E1F:0027F0, type=1, flags=0x00000000, evalskip=0
(1831) evalcommand(flags=0): entry point
(1831) evalcommand(): arg is ls
(1831) evalcommand(): arg is -l
(1831) find_command(): looking for /QOpenSys/pkgs/bin/ls
(1831) find_command(): looking for /usr/bin/ls
(1831) makejob(nprocs=1): entry point
(1831) makejob(): job 1
(1831) forkshell(mode=0): entry point
(1833) Tracing started at 17:08:32 on 02/27/2020
(1833) Starting in child shell
(1833) QzshChildMain(): action is 4
(1833) evalcmdpart2(): normal command is /usr/bin/ls, args: "/usr/bin/ls" "-l"
(1833) redirect(): processing redirections for redir=NULL
(1831) forkshell(): in parent shell, child pid=1833, jobname=177525/MARQUIS/QP0ZSPWT
(1831) waitforjob(): entry point, job=1
(1831) waitforproc(): waiting for pid=-1
(1831) waitforproc(): waitpid() returns 1833, status=0x00000000
(1831) waitforproc(): changing status of process 1833 from 0x00000000 to 0x00000000
(1831) waitforproc(): 0 running, 0 stopped, 1 done
(1831) waitforproc(): changing state of job 1 from 0 to 2
(1831) waitforproc(): status=0x00000000
(1831) freejob(): job 1
(1831) evalcommand(): child exitstatus=0
(1831) RunTraps(): debug_trap=0 err_trap=0
(1831) evaltree(): ending node=D9D68C1E1F:0027F0, type=1, evalskip=0, pendingsigs=0, exitstatus=0
(1831) showjobs(options=1): entry point
(1831) waitforproc(): waiting for pid=-1
(1831) waitforproc(): waitpid() failed, errno=3517
(1831) setinputstring(): setting input to string "$ "
(1831) pushfile(): current parsenleft=0, parsenextc=0x00, plinno=3
(1831) readtoken(): token word "$ "
(1831) pipeline(): entry point
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): reread token word "$ "
(1831) readtoken(): token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): reread token end of file
(1831) readtoken(): token end of file
(1831) popfile(): popping file on fd=-1
(1831) popfile(): reset parsenleft=0, parsenextc=0x00, plinno=3
(1831) preadbuffer(): read 7 bytes from stdin
(1831) readtoken(): token word "set"
(1831) pipeline(): entry point
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "set"
(1831) readtoken(): checking for keywords 2
(1831) readtoken(): reread token word "set"
(1831) readtoken(): reread token word "set"
(1831) readtoken(): reread token word "set"
(1831) readtoken(): token word "+t"
(1831) readtoken(): token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) readtoken(): reread token newline
(1831) showtree(): entry point
(1831) Node=0004, addr=D9D68C1E1F:0027F0, type=NCMD, backgnd=0, args=D9D68C1E1F:002760, redirect=NULL
(1831) Node=0005, addr=D9D68C1E1F:002760, type=NARG, lineno=3, quotetype=0, backquote=NULL, next=D9D68C1E1F:0027B0, textlen=3, text=
set
(1831) Node=0006, addr=D9D68C1E1F:0027B0, type=NARG, lineno=3, quotetype=0, backquote=NULL, next=NULL, textlen=2, text=+t
(1831) evaltree(): starting node=D9D68C1E1F:0027F0, type=1, flags=0x00000000, evalskip=0
(1831) evalcommand(flags=0): entry point
(1831) evalcommand(): arg is set
(1831) evalcommand(): arg is +t
(1831) find_command(): found special builtin "set"
(1831) evalcmdpart2(): builtin command, args: "set" "+t"
(1831) redirect(): processing redirections for redir=NULL
(1831) Tracing ended at 17:08:47 on 02/27/2020
$