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Full Discussion: How to change prompt color when changing path
Top Forums Shell Programming and Scripting How to change prompt color when changing path Post 302216924 by majormark on Monday 21st of July 2008 01:51:43 PM
Old 07-21-2008
How to change prompt color when changing path
Hi all,

Can you tell me how to change the prompt color (only the path part) when I chnange directory with "cd"?

I use the sequence below in ".bashrc" (Solaris 8) to change my prompt colors and I'd like to modify it to change the path color when I cange directory.

Code:
PSC() { echo -ne "\[\033[${1:-0;34}m\]"; }
function PWD() { echo "$*" |perl -pne \
  's:^'"$HOME"':~:;s:^(.{8}).{4}.*(.{20})$:$1...$2:;'
}
PR="0;34"        # this is blue
PSbase="$(PSC $sudo)\u$(PSC $PR)@\h $(PSC 33)\$(PWD \w)"
PS1[1]="$PSbase$(PSC $PR)\$ $(PSC)\e[0m"
PS1="${PS1[1]}"
unset sudo PR PSbase

The results are(the text colored in black is actually white):
root@localhost ~/dir1/d..._dir/really_long_dir$ pwd
/root/dir1/ddd/aaaaaaaaaaaaaaaaaaaaaaa/verry_long_dir/really_long_dir
root@localhost ~/dir1/d..._dir/really_long_dir$

The desired result is:
root@localhost ~/dir1/d..._dir/really_long_dir$ cd new_dir/
root@localhost ~/dir1/d...lly_long_dir/new_dir$

And if I change again the directory it should turn back to green.

Any ideea how to do this?

Thanks.
 

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LEARN ABOUT DEBIAN

chsh

CHSH(1) 							   User Commands							   CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

       -h, --help
	   Display help message and exit.

       -R, --root CHROOT_DIR
	   Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
	   The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
	   User account information.

       /etc/shells
	   List of valid login shells.

       /etc/login.defs
	   Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.1.5.1						    05/25/2012								   CHSH(1)
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