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curmudgeon
Veteran
Joined: 08 Aug 2003
Posts: 1741
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 Posted: Sun Apr 03, 2016 2:38 am Post subject: How is LS_COLORS being initialized? |
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This is another in the (long) list of "weird things I don't understand."
Have "always" had an alias in my .bashrc to add "--color=auto" the ls command. What I have failed to notice (literally for years) is that it was only working for certain types of entries. In particular, I was seeing directories blue, pipes brown, sockets pink, and SOME text files (.bin, .py) green. But other text files (such as .log were not colored, and I wasn't seeing any red for archives or pink for media files). I had just assumed that I would be getting the behavior listed in /etc/DIR_COLORS for each extension.
Also, the output of the set command includes:
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ls_colors='rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.pdf=00;32:*.ps=00;32:*.txt=00;32:*.patch=00;32:*.diff=00;32:*.log=00;32:*.tex=00;32:*.doc=00;32:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:'
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It was pretty obvious that ls was not using the ls_colors variable.
After playing around for a while, I added the following line to /etc/DIR_COLORS:
I logged out and logged back in changing nothing else. Then I noticed that I now have an LS_COLORS in my environment (which is the same as ls_colors, except that "*.foo=00;32:" has been tacked on to the end, and now ALL of the extensions are correctly colored (log files, archives, media files).
That leads to some obvious questions:
1. What is the purpose of ls_colors (it seems to be ignored completely, and thus has no value)?
2. Where are the "default" (with no LS_COLORS variable in the environment) color rules coming from?
3. What is causing LS_COLORS to be set (and why wasn't it being set before I altered /etc/DIR_COLORS)? |
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6920
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| Posted: Sun Apr 03, 2016 3:44 pm Post subject: |
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| It's set in /etc/bash/bashrc. Recently (within the past few weeks) someone tried to make that code "clever", and broke the default case for everyone. Having a ~/.dir_colors or /etc/DIR_COLORS file, which is what you did, forces it to work again. |
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