Magic Bash Prompt

Anikom15 · 2010-11-29 01:50:51

This magical prompt will cycle through the colors of the rainbow! It'll work properly if your terminal follows ANSI colors. (i.e. it works on the Linux console)

UPDATE: Version 1.0.0 released! Includes new random_hue function for random colors!

In your .bashrc file:

# Magic Prompt 1.0.0
function next_hue
{
    color=$((31 + (++color % 7)))   # set 31 to 30 for dark on light
    PS1="\[\e[1;${color}m\]\\$ $reset" # set 1 to 0 for dark on light
}

function random_hue
{
    color=$(($RANDOM % 7 + 31)) # set 31 to 30 for dark on light
    PS1="\[\e[1;${color}m\]\\$ $reset"    # set 1 to 0 for dark on light
}

PROMPT_COMMAND="random_hue"

Try it out, and comment out your old PS1. It's cool if you hold down the return key.

Last edited by Anikom15 (2010-11-30 03:53:44)

drcouzelis · 2010-11-29 03:53:57

I can confirm both that it works and that it is absolutely ridiculous.

Do you happen to know the trick to having multiple commands set to the PROMPT_COMMAND variable?

falconindy · 2010-11-29 04:29:42

Hillarious waste of the PROMPT_COMMAND, but still hillarious. @drcouzelis: no, sadly this isn't something you can really get around. ZSH offers the ability to specify multiple precmd hooks.

I've condensed it into pure awesome:

next_hue() {
    color=$(( 30 + (++color % 8) ))
    echo -ne "\e[1;${color}m"    # change 1 to 0 for darker colors
}
PROMPT_COMMAND=next_hue
PS1="\$\[\e[0m\] "

Last edited by falconindy (2010-11-29 04:30:14)

Anikom15 · 2010-11-29 14:37:43

I figured there was some kind of pattern to it but I was too lazy to bother. I also made one that changes the prompt to a random color. I'll post it later.

.:B:. · 2010-11-29 16:22:01

Nice to see you post something productive for once .

hbekel · 2010-11-29 16:40:02

drcouzelis wrote:

Do you happen to know the trick to having multiple commands set to the PROMPT_COMMAND variable?

Simply do this if you already have a PROMPT_COMMAND you wish to keep:

PROMPT_COMMAND="next_hue; $PROMPT_COMMAND"

There's no reason PROMPT_COMMAND can't contain multiple commands.

falconindy · 2010-11-29 17:14:26

move along, nothing to see here.

Last edited by falconindy (2010-11-29 18:04:45)

halimbo · 2015-02-22 14:53:49

this is awesome

Arch Linux

#1 2010-11-29 01:50:51

Magic Bash Prompt

#2 2010-11-29 03:53:57

Re: Magic Bash Prompt

#3 2010-11-29 04:29:42

Re: Magic Bash Prompt

#4 2010-11-29 14:37:43

Re: Magic Bash Prompt

#5 2010-11-29 16:22:01

Re: Magic Bash Prompt

#6 2010-11-29 16:40:02

Re: Magic Bash Prompt

#7 2010-11-29 17:14:26

Re: Magic Bash Prompt

#8 2015-02-22 14:53:49

Re: Magic Bash Prompt

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