Re: Temporary color prompt in bash script

[Lee <ler762@gmail.com>]

On 9/1/19, Computer Planet <debian@cpnetserver.net> wrote:
> Hi guys!
> I'm trying, trying and trying but...
>
> How I Can put in hte end of a bash script this command:
> PS1="\[\e]0;\u@\h:
> \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w
> #\[\033[91m\] "
> so that after finishing the script the prompt will write in red...?
>
> If I try in prompt # PS1="\[\e]0;\u@\h:
> \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w
> #\[\033[91m\] "
> command no problem, write in red until exit or reboot.

You have to source the script instead of running it.

I'm not entirely clear about a new shell gets it's own env that
disappears when the shell exits thing, but try this:

$ cat setps1
##!/bin/bash
# can i change ps1 from a script?
echo "FOO = ${FOO}"
export FOO=BAR
echo "FOO now = ${FOO}"
export PS1='\[\e]0;\u@\h:
\w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w
#\[\033[91m\] '

$ export FOO=FOO
$ ./setps1
FOO = FOO
FOO now = BAR
$ echo $FOO
FOO

See?  FOO is back to it's pre ./setps1 value

Now try
$ source setps1

Lee