Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: [Solved] Help needed to have changing value to the command prompt string variable PS1
Top Forums UNIX for Dummies Questions & Answers [Solved] Help needed to have changing value to the command prompt string variable PS1 Post 302630075 by neutronscott on Wednesday 25th of April 2012 10:54:21 AM
Old 04-25-2012
with this double quoting, look at PS1 after assignment:

Code:
$ PS1="[$PWD $(git branch | grep '*') $] "
[/home/mute  $] declare -p PS1
declare -- PS1="[/home/mute  \$] "

Your variables are expanded inside of a double-quote before assignment. If you escape the $ then it will be stored inside of PS1. You can also use single quotes to avoid expansion, but you have some in there so those are the 1 character you need to treat special inside single quotes:

Code:
$ PS1='[$PWD $(git branch | grep '\''*'\'') $] '
fatal: Not a git repository (or any of the parent directories): .git
[/home/mute  $]

Having a command execute for each prompt is a bit much. Also maybe you'd like to make it a function and handle those fatal errors in case you leave a git branch.

Code:
[/home/mute/code  $] PS1='[$PWD $(git branch 2>/dev/null | grep '\''*'\'') $] '
[/home/mute/code  $] cd Twitter.awk/
[/home/mute/code/Twitter.awk * master $]

et voila!?
This User Gave Thanks to neutronscott For This Post:
royalibrahim
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Changing the UNIX command prompt

I am having a hard time figuring out how to change the command prompt in my UNIX shell. I am using the bash shell, and I would like to set the prompt to show me the full path of the current working directory along with my username, I suppose... The main thing I want is the full path of the... (2 Replies)
Discussion started by: WERUreo
2 Replies

2. UNIX for Dummies Questions & Answers

Very simple question about changing PS1 variable at startup!

Hello there ! I am new in this Unix world and just start learning Unix. I have very simple question about changing PS1 variable (Shell Prompt) i have local.profile file in my working directory, i open in vi edit mode and add this line PS1="Hello:>" and i save that file. I disconnected from... (2 Replies)
Discussion started by: abidmalik
2 Replies

3. Shell Programming and Scripting

Changing text in the command prompt

Hi, I want to change my command prompt to contain the current username and the current directory in it, instead of just the '$' symbol. I tried the command:- export PS1="$(echo \\n$) " But whenever I switch the user or change the directory, the changes are not reflected in the command... (10 Replies)
Discussion started by: unipepper
10 Replies

4. UNIX for Dummies Questions & Answers

colors in Prompt - $PS1

would someone please explain in detail, how does the code below change the color or bash prompt $ echo $PS1 :\033 are there other tricks like above? (3 Replies)
Discussion started by: rakeshou
3 Replies

5. UNIX for Dummies Questions & Answers

PS1 prompt

please advise what's wrong with this command ? PS1="`hostname`:`who am i | cut -d " " -f1`:>>" trying to make the PS1 prompt look like : machine_name:username:>> thank you (4 Replies)
Discussion started by: venhart
4 Replies

6. Shell Programming and Scripting

How to get a Prompt (PS1) Timestamp under /sbin/sh?

Hi, I'm trying to find out if there is a way to get a timestamp on my Solaris root shell prompt using /sbin/sh? I'm trying to archive something in line with the following: 12:34:26 root@server # 12:34:28 root@server # 12:34:28 root@server # ls ... 12:34:30 root@server # I know there... (1 Reply)
Discussion started by: Solarius
1 Replies

7. UNIX for Dummies Questions & Answers

[Solved] Variable Name as a Prompt

Dear Members, I have an variable by name dir.If i do echo $dir i will get the path (/usr/bin/). I am writing a shell script which will prompt to enter the variable name if run.Suppose the script name is test.sh. If run test.sh it will prompt for entering variable name which is dir.Suppose... (9 Replies)
Discussion started by: sandeep_1105
9 Replies

8. UNIX for Dummies Questions & Answers

Why is my PS1 breaking my prompt?

So, this is strange... I created this prompt: PS1='\n\e You can see that it's a pretty minor modification of the default Debian prompt. And, if it matters, I'm using Putty to SSH to my server. The following strange symptoms appear when I use that prompt, and disappear when I change and... (2 Replies)
Discussion started by: treesloth
2 Replies

9. UNIX for Dummies Questions & Answers

Need to revert default prompt in Linux after setting PS1 command

I have given as: PS1="Karthick>" in linux. Now the prompt changed as: Karthick> Now I need to get back the default prompt . How to achieve this? Thanks in advance (13 Replies)
Discussion started by: karthick nath
13 Replies

10. Solaris

Help changing the PS1 prompt in Solaris

Hi, I need help changing PS1 in Solaris. I tried this: MYPROMPT="> " PS1=$LOGNAME@$HOSTNAME:${PWD}$MYPROMPT (NOT SURE WHY IT'S HIGHLIGHTED HERE) export PS1 My problem is that $PWD is not working, when I get the prompt and I change directories, the prompt is not displaying the current... (17 Replies)
Discussion started by: curiousmal
17 Replies

LEARN ABOUT LINUX

git-symbolic-ref

GIT-SYMBOLIC-REF(1)						    Git Manual						       GIT-SYMBOLIC-REF(1)

NAME

       git-symbolic-ref - Read, modify and delete symbolic refs

SYNOPSIS

       git symbolic-ref [-m <reason>] <name> <ref>
       git symbolic-ref [-q] [--short] <name>
       git symbolic-ref --delete [-q] <name>

DESCRIPTION

       Given one argument, reads which branch head the given symbolic ref refers to and outputs its path, relative to the .git/ directory.
       Typically you would give HEAD as the <name> argument to see which branch your working tree is on.

       Given two arguments, creates or updates a symbolic ref <name> to point at the given branch <ref>.

       Given --delete and an additional argument, deletes the given symbolic ref.

       A symbolic ref is a regular file that stores a string that begins with ref: refs/. For example, your .git/HEAD is a regular file whose
       contents is ref: refs/heads/master.

OPTIONS

       -d, --delete
	   Delete the symbolic ref <name>.

       -q, --quiet
	   Do not issue an error message if the <name> is not a symbolic ref but a detached HEAD; instead exit with non-zero status silently.

       --short
	   When showing the value of <name> as a symbolic ref, try to shorten the value, e.g. from refs/heads/master to master.

       -m
	   Update the reflog for <name> with <reason>. This is valid only when creating or updating a symbolic ref.

NOTES

       In the past, .git/HEAD was a symbolic link pointing at refs/heads/master. When we wanted to switch to another branch, we did ln -sf
       refs/heads/newbranch .git/HEAD, and when we wanted to find out which branch we are on, we did readlink .git/HEAD. But symbolic links are
       not entirely portable, so they are now deprecated and symbolic refs (as described above) are used by default.

       git symbolic-ref will exit with status 0 if the contents of the symbolic ref were printed correctly, with status 1 if the requested name is
       not a symbolic ref, or 128 if another error occurs.

GIT

       Part of the git(1) suite

Git 1.8.5.3							    01/14/2014						       GIT-SYMBOLIC-REF(1)
All times are GMT -4. The time now is 07:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy