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I am looking for a way to apply colors to highlight URLs (http://....) and IP @ in the output of a terminal command.

Example would be with a wget command for example where I would like to be able to output URLs in a particular color so that it is easier to read.

Best would be to be able to do the same for IP@ and other important info to standout.

I have been struggling with this for a while and not able to find a solution.

I use iTerm 2 on MAC with oh-my-zsh

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  • According to [this blog] (gabri.me/blog/custom-colors-in-your-zsh-prompt), if you run spectrum_ls in your terminal, do you get the colors?
    – Alfabravo
    Sep 10, 2015 at 5:45
  • I think this is only modifying the prompt color. I am looking for a way to highlight URL and IP @ in any command output.
    – Laurent
    Sep 11, 2015 at 6:16

3 Answers 3

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Apply colors to terminal output...

For anyone looking for a simple way (in my opinion) to color the terminal text in linux

# yeah  i know... it's csh... if you need bash the syntax is simply red='<colorcode>'

# i have not experimented with other colors, these have always been enough for me.

setenv RED         '\033[0;31m'
setenv BOLDRED     '\033[1;31m'
setenv GREEN       '\033[0;32m'
setenv BOLDGREEN   '\033[1;32m'
setenv ORANGE      '\033[0;33m'
setenv YELLOW      '\033[1;33m'
setenv BLUE        '\033[0;34m'
setenv BOLDBLUE    '\033[1;34m'
setenv PURPLE      '\033[0;35m'
setenv BOLDPURPLE  '\033[1;35m'
setenv CYAN        '\033[0;36m'
setenv BOLDCYAN    '\033[1;36m'
setenv WHITE       '\033[0,37m'
setenv BOLDWHITE   '\033[1,37m'

# turn color off,  i.e. nocolor
setenv NC          '\033[0m'

# example

echo "${RED}This text is in red.${NC}  This text is now back to whatever the previous color was."

# change my csh/tcsh prompt, and only the prompt, to cyan color that is `[username@host cwd] : ` with all text afterward the default shell color.

set prompt="${CYAN}[%n@%m %~] : ${NC} "

so with the variable setup described above, they can all be local to a bash script for example and you just need to prepend ${COLOR} and append ${NC} to whatever text in your echo statement, or printf, and so on in you bash, csh script or .c or .f program

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On the answer to this question, someone actually forked zsh-syntax-hightighting and created a flexible functionality to colorize according to patterns and lot of stuff on zsh.

You might check this answer as well. Don't know if this makes yours a duplicate but oh well. Despite it being old, you can try supercat as it works with regexp so you can match URL and colorize them.

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In Preferences -> Profiles -> Advanced you can set up Triggers; that is, if a certain regular expression is encountered, it might take actions such as highlight the text.

Beware: unfortunately it significantly slows down iTerm.

I'm not sure when this feature appeared, it might be only present in the latest betas.

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  • Nice. I found the Triggers but putting the following Regex is not working: ^(http|https)://
    – Laurent
    Sep 25, 2015 at 2:18
  • Does the URL appear at the beginning of a line, as required by the ^ character in your regexp?
    – egmont
    Sep 25, 2015 at 13:22
  • I am obviously pretty weak on RegEx. I wanted the highlight to happen for any http:// or https:// regardless of where the http:// appears. How should my RegEx look like? I tried to remove ^ which works but only highlight the http:// part when I would like this + the URL to be highlight example.com (this shoudl be highlighted anywhere in the output)
    – Laurent
    Sep 28, 2015 at 12:26

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