Battles With Boredom

May 13, 2009

Useful and Fun Bash Prompt Tweaking

Filed under: Politics,Techspeak — Peter Nikolaidis @ 4:31 pm

A friend of mine gave me the following code, which he pulled off of The site’s still in beta, and I don’t have an account there so I can’t actually get the full source URL, but here’s the code:

SELECT="if [ \$? = 0 ]; then echo \"${SMILEY}\"; else echo \"${ANGRY}\"; fi"

PS1="${RESET}[\u@\h]: \w \`${SELECT}\` ${YELLOW}${NORMAL}\$ "

What does this do? Why, it makes your bash prompt display a smiley face, depending on the output of the previous command! Just append this to your .bashrc file, and you’ll get handy, emotional output every time you issue a command.

Here’s a sample of the output:

[peter@standard]: ~ :) $ mkdir tmp
[peter@standard]: ~ :) $
cd tmp
[peter@standard]: ~/tmp :) $
touch test1.txt test2.txt
[peter@standard]: ~/tmp :) $
echo "hi" > test2.txt
[peter@standard]: ~/tmp :) $
diff test1.txt test2.txt
> hi
[peter@standard]: ~/tmp :( $
cat test1.txt > test2.txt
[peter@standard]: ~/tmp :) $
diff test1.txt test2.txt
[peter@standard]: ~/tmp :) $

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