Visual feedback of the exit status of the previous command in bash

Put this in your .bashrc, and the current directory in your PS1 will be printed green if the previous command had exit state 0, red otherwise. No more typing 'echo $?', ' && echo ok', '|| echo failed' etc on the command line.

  1. if [ $(tput colors) -gt 0 ] ; then
  2.     RED=$(tput setaf 1)
  3.     GREEN=$(tput setaf 2)
  4.     RST=$(tput op)
  5. fi
  6.  
  7. bash_prompt_command() {
  8.         last_exit=$?
  9.         exit_to_color=$RED
  10.         [ $last_exit == 0 ] && exit_to_color=$GREEN
  11. }
  12.  
  13. export PROMPT_COMMAND=bash_prompt_command
  14.  
  15. PS1="\u@\h \[\$exit_to_color\]\W\[$RST\] \$"

( Inspired by this post )

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Submitted by Dieter_be on Tue, 10/14/2008 - 21:56. categories [ ]

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