It is possible to use colors on the Unix command-line interface.

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ls colors for permissions

Is there a way to control the color output of ls to highlight specific permissions on files? (e.g. write permissions). Any options in LS_COLORS that would do this? (the image above is from Dired+ ...
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3answers
967 views

How to disable styling on man pages?

Is there an easy way to turn off all styling on man pages? Colors, bold, italics, everything... If not, what is an uneasy way?
6
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2answers
496 views

How to display control characters (^C, ^D, ^[, …) differently in the shell

When you type control characters in the shell they get displayed using what is called "caret notation". Escape for example gets written as ^[ in caret notation. I like to customize my bash shell to ...
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2answers
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Where does the TERM environment variable default get set?

When I open a terminal window with the GNOME Terminal emulator in the desktop GUI the shell TERM environment variable defaults to the value xterm. If I use CTL+ALT+F1 to switch to a console TTY ...
6
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1answer
271 views

Highlighting text in bash when using reverse history search using Ctrl-R

Using Ctrl-R, I can search the history in bash. But what to do, If I want to highlight the relevant word which has been typed upon by me. Example: (reverse-i-search)`mount': sudo mount /dev/sda2 ...
6
votes
1answer
711 views

How to highlight logs with bash coloring on vim?

I have some nicely colored logs from some tools with bash color codes. When I view them through less or similar tools it get color rendered by bash (obviously). However it is pain to watch and edit ...
6
votes
1answer
977 views

What are the origins of rgb.txt?

Where did the list of X11 color names come from? Every resource I've found online claims the origin is unknown, but it must be recorded somewhere. The best information I've found was in an archived ...
6
votes
1answer
6k views

Color calibration on Linux Mint

I'm running Linux Mint 9. I installed Argyll and gnome-color-manager but neither of those have a GUI. I need to configure my monitor colors. Right now the white looks a little yellow etc. and I want ...
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2answers
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emacs colors based on $TERM environment variable

I want to know if it is possible to make emacs, when running in a gnu screen or tmux session, use the same colors as when TERM=xterm. In a gnu screen or tmux session, TERM=screen and emacs uses a ...
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1answer
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Is it possible to use named colors in Zsh beyond ANSI names?

I know there are ways to use ANSI color names in Zsh (such as red), but Zsh supports 256 colors by number. I'm curious if there's any way to refer to the non-ANSI colors by a name? (Without just ...
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1answer
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How to change background color of a pane in tmux?

I would like to change the background color of the inactive panes in tmux to better distinguish between the active pane and inactive panes. Something just a few shades different than the default. How ...
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2answers
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how to make XTerm never use bold characters?

I am trying to make XTerm to never use a bold font, and nothing seems to work. I put settings in ~/.Xresources and then run xrdb ~/.Xresources and then start a new XTerm. This is what I try: ...
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2answers
686 views

how to edit and color bash's tab completion list

Following is what i would like to have. When the tab completion is ambiguous, and bash prints the list of possibilities. I would like it to colour the next character I should press inside every word ...
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1answer
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Program similar to xcalib to invert desktop colors

I'm using xcalib to invert colors on my computer at home. I have two monitors at work, and unfortunately the xcalib -i -a inverts only one of them (the one I don't want to invert). I haven't found any ...
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2answers
394 views

How to colourise hidden files in `ls` file listings?

LS_COLORS environmental variable lets you decide on colours for different file types for ls command, such as, directories, regular files, links etc. I suppose that dot files are considered a variation ...
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5answers
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How do you colorize only some keywords for a bash script?

I am running some unit test code. The unit test code outputs regular text. There is a lot of the text so I want to highlight for the user important keywords. In this case the keywords are "PASS" and ...
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votes
2answers
5k views

Change colors in console/virtual terminal

Is there a way to alter all the available colors in console / virtual terminal? By console, I mean what you get after pressing CTRL + ALT + F1 and not anything like xterm or urxvt. So, I guess that ...
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3answers
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Colored text set up with PS1 and colored output from commands mess each other up

I have PS1 that ends with an opening color sequence (like \[\e[0;32m\]) to have all text in the terminal colored (green in this case). However, when I use a command such as ls (which is aliased to ls ...
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2answers
608 views

Man page highlight color

To colorize my man pages, I put this code from archlinux.org into .bashrc: man() { env LESS_TERMCAP_mb=$'\E[01;31m' \ LESS_TERMCAP_md=$'\E[01;38;5;74m' \ LESS_TERMCAP_me=$'\E[0m' \ ...
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2answers
365 views

How do I preserve coloured output when piping to `less -R`?

$ ffmpeg -v debug ... Coloured output. $ ffmpeg -v debug ... |& less -R Dull output. How do I make the output coloured while piping it to something?
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2answers
187 views

Background color whitespace when end of the terminal reached

I am working with control sequences for text formatting and have stumbled upon some unexpected behavior. I have some text to output, in the middle of this text there is some smaller text block ...
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1answer
389 views

How do I store colored text in a variable and print it with color later?

If I do git status --short, git lists files that are not tracked with two red question marks in front: I'm trying to store this in a variable and print it with color later. Here's my bash script: ...
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How would I add a prefix to input I receive from a pipe via awk and color the prefix conditionally?

Is there a way to add a prefix to lines received (and filtered) via awk - yes I know that's possible so far - and then conditionally (e.g. based on the existence of the $PS1 variable of the ...
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2answers
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How do I extract the colours from a PDF?

I have a PDF and I want to verify the colours being used (check that they match our corporate colour scheme for instance). Specifically, I want to check that the correct CMYK colours are being used. ...
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5answers
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In bash how can I change the color of my command prompt? [duplicate]

Possible Duplicate: How to customize .bashrc to configure command prompt? When I run a command, I often times have trouble finding the beginning of the command output. An easy fix to this ...
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4answers
321 views

Coloring output of forked processes

I have a runscript that starts some processes and sends them to the background mongod & pid_mongo=$! redis-server & pid_redis=$! # etc. All these processes then output concurrently to ...
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1answer
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GNU screen color and pine

I use GNU screen to run pine mail reader. I use external aspell to do spellchecking for the e-mails I sent. The problem is that when aspell finishes, pine restores the old content of the terminal, but ...
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1answer
173 views

rlwrap -z pipeto: piping output through pagers

I am using rlwrap to colorize prompt in asterisk CLI: rlwrap -s 99999 -a -pRED /usr/sbin/asterisk -r I read in man rlwrap that I can also use rlwrap -z pipeto to pipe output through a ...
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1answer
283 views

Strip color on OS X with BSD sed (or any other tool)

I'm on OS X, which has a BSD version of sed (which I'm guessing is inferior to a GNU version on Linux), and all the techniques for removing color on commandlinefu.com did not work. I tried replacing ...
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1answer
860 views

Is there a Vim syntax file for ANSI-colored output of CLI apps?

I have quite a lot of Perl scripts which print colored output to the terminal, using Term::ANSIColor. This is the same as when a shell script does e.g. echo -e '\e[1;31mError:\e[0m Your fault.' ...
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2answers
825 views

Set tmux status line color based on hostname

I'd like tmux to pick a color dynamically based on the hostname of the machine. Since I share my tmux.conf across several machines, assigning an unique color for each of those hosts would be handy ...
5
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1answer
456 views

Linux VT Emacs in tmux, breaks color and cursor

TERM is set to screen. I tried with screen-256color, but then the colors went really nuts. I also tried xterm, linux, and some others (that I could think of, not really thinking) but screen is the ...
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2answers
406 views

Is it possible to use ANSI color escape codes in Bash here-documents?

I'm printing a message in a Bash script, and I want to colourise a portion of it; for example, #!/bin/bash normal='\e[0m' yellow='\e[33m' cat <<- EOF ${yellow}Warning:${normal} This script ...
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3answers
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Prevent watch breaking colors

I'm altering scripts at work that monitor log files to single out certain items and colorize them. The final output is a list of 6-digit numbers in several columns. I've been able to add a ~ to the ...
4
votes
3answers
785 views

cascaded grep matches color code as pattern

I am piping output of one grep comand into another grep. The first grep is using --color=always, so that the first match is colored. In practice, that means that the match is enclosed between two ...
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2answers
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256 color in Linux console

I have in my .bashrc export TERM=xterm-256color but this cause blinking all colored text (ls --color, in vim etc.) in a Linux console (Ctrl+Alt+F1). So is there any possibility to recognize in ...
4
votes
2answers
976 views

How to prevent a Qt/GTK app (Calibre) from using colors defined in .Xresources?

I have colors defined in .Xresources. They look lovely on urxvt, and utterly ghastly on Calibre. Calibre does not appear to have any way to disable or override those colors, so is there any way I can ...
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1answer
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How can I get less or cat to use color in the output from .cat of my .bashrc, similar to vi 'ing it?

When I vi my .bashrc file it is colorized, i.e. but when I cat or less the file I get all white, i.e. How can I get cat (and less) to have color? cat does have color for my ruby .rb files but ...
4
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1answer
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Visualizing ansi color escape codes in log files correctly in Emacs [duplicate]

I have some log files that have ansi-color codes in them. When I open them in Emacs I see garbage:           As an example, I run the following: ls --color=yes -ald -- * ...
4
votes
2answers
14k views

Colorful ssh banner

I would like to colorize my ssh banner. I know I can perform it like so: In /etc/profile I can put: echo -e "\e[1;31m Colorful text" echo -e "\e[0m Reset" But I have some ASCII art in the banner ...
4
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1answer
55 views

Turn off color in bash for logs

I am running Ansible on multiple machines and redirecting the output to a file, say log-$(date), which is mailed to me every day. The output file has multiple text colors, how to turn them off? ...
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votes
1answer
1k views

Is there a way to temporarily change the terminal colour?

I use the gnome-terminal and most of my editors with a white on black theme as I find its easier on the eyes. One of my labs requires screenshots of the terminal (with the process) to be submitted ...
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votes
2answers
151 views

Sorting strings with ANSI escape codes

I am trying to print a sorted list of all zsh options, with set options colored green and unset options colored red. I cannot get sort to work properly with on the colored lines though.The below ...
4
votes
1answer
138 views

Fine-tune LS_COLORS for directory suffixes?

I’m fine customizing most settings in LS_COLORS. I don’t need help customizing the colors for different file suffixes. What I would like to do is configure special colors for certain directories, ...
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3answers
590 views

Preserving color output with cut

Using bash interactively I am trying to use cut to prevent the lines from going longer than my terminal width. But when using a command with colorized output all the color gets removed by cut. For ...
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1answer
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Pass colors from ls through pipe to awk 'print' statement

This is a follow-up to my question from yesterday, Show sum of file sizes in directory listing. Thanks to Zero Piraeus and a point in the right direction by Mauritz Hansen, I now have function ...
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2answers
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How to change font colors in terminal?

I know how to change the font color via preferences, but it changes the color of ALL text, as in below:     What I'm going for is something more like this:     Any ...
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1answer
176 views

What's the problem with terminals vs colors?

I'm a long time linux/unix user, as almost anyone working with this kind of OSs I use the terminal or a terminal emulator a lot, but I never understood why it's so hard for any GNU/Linux distribution ...
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1answer
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watch command not showing colors for 'git status'

I'm trying to get watch to display colors from 'git status'. I've tried running watch with the --color option, as suggested elsewhere here, but, still, watch --color 'git status' doesn't display ...
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2answers
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How can I search for and highlight multiple strings in VIM?

In VIM, how can I search for multiple strings and have a different color highlight for each match?