Commands tagged color (58)

  • Don't want to open up an editor just to view a bunch of XML files in an easy to read format? Now you can do it from the comfort of your own command line! :-) This creates a new function, xmlpager, which shows an XML file in its entirety, but with the actual content (non-tag text) highlighted. It does this by setting the foreground to color #4 (red) after every tag and resets it before the next tag. (Hint: try `tput bold` as an alternative). I use 'xmlindent' to neatly reflow and indent the text, but, of course, that's optional. If you don't have xmlindent, just replace it with 'cat'. Additionally, this example shows piping into the optional 'less' pager; note the -r option which allows raw escape codes to be passed to the terminal. Show Sample Output


    0
    xmlpager() { xmlindent "$@" | awk '{gsub(">",">'`tput setf 4`'"); gsub("<","'`tput sgr0`'<"); print;} END {print "'`tput sgr0`'"}' | less -r; }
    hackerb9 · 2015-07-12 09:22:10 3
  • Basically, \033[ is a semi-portable unix escape character. It should work in linux, osx, bsd, etc. The first option is 38. This tells whatever is interpreting this (and this is merely convention) that a special color sequence follows. The next option is 5 which says that the next option will specify a color ? {0..256} of course. These options, as you can see, are separated by a single `;` and the entire escape sequence is followed by a mandatory `m`. The second escape sequence (following "COLOR") is simply to clear all terminal attributes (for our purposes, it clears color). This for loop is helpful for testing all 256 colors in a 256 console (note: this will not work in a standard Linux tty console) or to see which number corresponds to which color so that perhaps you can use it! Show Sample Output


    0
    for i in {0..256}; do echo -e "${i} \033[38;05;${i}m COLOR \033[0m"; done
    Benharper · 2015-12-17 23:49:42 5
  • Count the number of unique colors there are in a websites css folder (136 is way too many imho time to get people stick to a color scheme) Show Sample Output


    0
    grep -r -h -o 'color: #.*' css/*|sort|uniq -c|sort -n|wc -l
    thoth · 2015-12-29 07:22:44 4
  • I've shortened it to: lsc PATH | l ... by adding ... alias lsc="ls --color" ... and ... alias l="less -R" ... to my ~/.bashrc file


    0
    ls --color PATH | less -R
    kevjonesin · 2016-03-07 13:46:02 5

  • 0
    ls -l --color | less -R
    flarn2006 · 2016-05-07 17:19:56 4
  • A simple PS1, ready to be used. Just paste in your ~/.bashrc Show Sample Output


    0
    export PS1="[\[\e[1;32m\]\u\[\e[m\]\[\e[1;31m\]@\[\e[m\]\[\e[3;35m\]\H\[\e[m\] \[\e[1;30m\]| \[\e[m\]\[\e[1;34m\]\w\[\e[m\] \[\e[1;29m\]\t\[\e[m\]]\[\e[1;33m\]$\[\e[m\]"
    thelaser · 2017-03-24 14:21:20 3
  • exa

    nothing fancy `ls` alternative `exa`, with most info printed and passed through less with the `-R` (raw) option, to preserve colour output https://github.com/ogham/exa You can add or remove `-@` to print extended attributes for files that have them. Show Sample Output


    -1
    exa -glhrSuU -s size --group-directories-first -@ | less -R
    wires · 2016-02-27 17:19:43 14
  • but you can't see the colors in that sample output :( Show Sample Output


    -2
    tail -f file | egrep --color=always $\|PATTERN
    sitaram · 2009-10-15 13:08:30 1
  •  < 1 2 3

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Display information sent by browser
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delete PBS jobs based on strings from qstat output

Find duplicate UID in /etc/passwd
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Colour part of your prompt red to indicate an error
If the return code from the last command was greater than zero, colour part of your prompt red. The commands give a prompt like this: [user current_directory]$ After an error, the "[user" part is automatically coloured red. Tested using bash on xterm and terminal. Place in your .bashrc or .bash_profile.

du and sort to find the biggest directories in defined filesystem
I had the problem that our monitoring showed that the "/" filesystem is >90% full. This command helped me to find out fast which subdirs are the biggest. The system has many NFS-mounts therefore the -x.


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