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Using alias tracking z/OS UNIX System Services User's Guide SA23-2279-00 |
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Alias tracking can reduce the time the shell spends searching your
search path (specified with the PATH variable) for a command;
it helps shell scripts run faster. A tracked alias is a shell-created
alias that is the full pathname for a command. The shell automatically
tracks everything it finds in the default path for executables (/bin).
For example, if you enter the ps command,
the shell creates the alias:
To use alias tracking for commands in other locations, enter the
command:
The first time you
enter a command, the shell creates an alias that is the full pathname
of the command. For example, if the user marcw entered the hello command
and the shell tracked the command, it would create the alias:
Each
time you enter a command, the shell uses its tracked alias, instead
of searching the PATH for the command.To list your tracked aliases, enter the command:
To turn off alias tracking of all commands, enter the command:
Then commands found in directories
other than /bin are not tracked. When the PATH search
finds a command in /bin, the pathname will always be tracked.To remove tracked aliases, use:
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