Unix Tip: SHELL PROMPT CONTROL

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2967 - March 22, 2010

http://www.ugu.com/sui/ugu/show?tip.today

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SHELL PROMPT CONTROL

Shell prompts to identify system and logged in users.

The entries can be made in the /etc/profiles file that TELNET and interactive terminal logins use.

If your SHELL=/bin/sh
#for example SOLARIS

PS1="`hostname1{$LOGNAME} "

If your SHELL=/bin/bash
# for example Linux

PS1='\h:\w\$ '

If your SHELL=/bin/zsh

PS1="%m"%~%# "

The details of environment variable assignments are usually documented in the man pages for the shell being used.

You may wish to test the substitutions by spawning a subshell (issuing the sh, bash, zsh, ksh, ash or other shell command), then perform the environment variable substitution assignments and see what happens. When you are satisfied with the results, then place appropriate entries in the /etc/profile or startup script for your favorite shell program.

This tip generously supported by: Steven.J.Hathaway@state.or.us

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