Sponsored Content
Full Discussion: Bash conditional prompt?
Top Forums UNIX for Advanced & Expert Users Bash conditional prompt? Post 302441563 by adderek on Sunday 1st of August 2010 05:29:33 AM
Old 08-01-2010
Bash conditional prompt?

Hi,

Does anyone know any way of making bash prompt extended with conditional content?

Example:

Code:
export PS1="[[ ${USER} = 'root' ]] && echo '#' || echo '\$'" # This won't work - prompt is not executed
# export PS1="\$" # This is an existing but also working equivalent

I would like to use more complex conditionals than in the given example.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

customize my prompt in bash

in csh I was using: set prompt=""$HOSTNAME".tk.\!> " to customize the look of my prompt. I have seen the light after reading the perils of csh scripting and wish to switch to bash. How do I customize my bash prompt??? I've tried many variation of the above w/no success, and searching this... (2 Replies)
Discussion started by: yankee428
2 Replies

2. UNIX for Dummies Questions & Answers

Conditional statement in bash

I want to combine 2 conditional statements by using -o in bash, but it won't work. if ; then echo "The number needs to be between 0 and $nr" fi Each time i execute the file it says: ./selectCitaat: line 10: syntax error near unexpected token `$1' (3 Replies)
Discussion started by: doc.arne
3 Replies

3. Shell Programming and Scripting

How can i change my bash prompt ?

It looks like, user@hostname:/auto/home3/user$ Desired, user@hostname$ I added following line in .bashrc, but still its same. export PS1=" $ " Please help me :confused: (13 Replies)
Discussion started by: admax
13 Replies

4. OS X (Apple)

Bash prompt wraparound

I'm using a custom prompt with PS1 in my .profile. It is PS1="\\u@\e\:\W\ \\$\ \" and it works well, as you can see, http://content.screencast.com/users/killer54291/folders/Jing/media/2b3db52a-ebf7-43e2-95cc-f45dadbc2b98/00000023.png but, when i type more than the width of the window, it... (0 Replies)
Discussion started by: killer54291
0 Replies

5. Shell Programming and Scripting

BASH: Getting titlebar and prompt to 'sync up'

This is an instance of "if it's not one thing, it's another." I recently fell victim to my own stupidity in trashing, by accident, my long-running and very highly-customized .bash_profile and .bashrc files for Cygwin & Cygwin/X. I had backups from a previous "go" with this, and decided to use... (0 Replies)
Discussion started by: SilversleevesX
0 Replies

6. Emergency UNIX and Linux Support

Bash answer prompt

I am working with a script to simplyfy some operations where I work, but one of the programs needs me to enter a password. It will as me "Please enter the administrator password:" Is there a way to make a bash script to automatically answer the question with the needed password? I am looking... (3 Replies)
Discussion started by: noratx
3 Replies

7. Shell Programming and Scripting

Bash conditional | getting logic wrong?

I have a file cat <<EOF > /tmp/test Line one Line two Line three EOF Now I am trying to get the exit stat ($?) of 1 if any text is found and 0 if any text is not found using grep, i.e. just reversing the exit status of grep # (snippet 1) this one is not working!!! retval $?... (4 Replies)
Discussion started by: the_gripmaster
4 Replies

8. UNIX for Dummies Questions & Answers

Bash prompt is over lapping

Hello Guys, I have facing problem with linux shell prompt .Am expecting my Bash prompt to be like below but its showing like ~]$ ot@Servername and while typing the commands the prompt looks like below: ~]$ echo $PS1 $ ~]$ ot@ServernameChecked the .bash_profile and also changed... (9 Replies)
Discussion started by: kapil514
9 Replies

9. Shell Programming and Scripting

Conditional bash/mysql query help

I think(hope) I've got a simple one - I just need to send an email if a mysql query returns any results (ideally - it will never match). Currently I just pipe the mysql query output to the mail program, but of course that emails regardless of the output( and I check this every 10 minutes from... (5 Replies)
Discussion started by: jcass78
5 Replies

10. Shell Programming and Scripting

Autojump with modified bash prompt

I use the .bashrc file from this thread. Direct link to the archive containing the ultimate bashrc I am trying to use autojump, but it will not autoload the directories to the autojump list as the custom prompt is not compatible. Here is the thread on the issue from other users. apt -... (2 Replies)
Discussion started by: genehunter
2 Replies
set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
All times are GMT -4. The time now is 06:06 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy