A few years ago I found an interesting code snippet that prints each type of file in its corresponding color according to the colors set up in LS_COLORS. Unfortunately, I can’t remember the link anymore.
Here is the snippet test_colors.sh in question
eval $(echo "no:global default;fi:normal file;di:directory;ln:symbolic link;pi:named pipe;so:socket;do:door;bd:block device;cd:character device;or:orphan symlink;mi:missing file;su:set uid;sg:set gid;tw:sticky other writable;ow:other w
ritable;st:sticky;ex:executable;"|sed -e 's/:/="/g; s/;/"n/g')
{
IFS=:
for i in $LS_COLORS
do
echo -e "e[${i#*=}m$( x=${i%=*}; [ "${!x}" ] && echo "${!x}" || echo "$x" )e[m"
done
}
The snippet works great in bash, but not in zsh, and I can’t tell why. When I run it in zsh I get the following error:
> sh .test_colors.sh .eval_colors:1: * not found [00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31:*.rpm=01;31:*.jar=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:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.flac=01;35:*.mp3=01;35:*.mpc=01;35:*.ogg=01;35:*.wav=01;35:m
Update (Nov. 1, 2011)
I tested the script by @Stéphane Gimenez below. I noticed that some characters seem to not escape correctly. Any thoughts why?
Answer: See comments on @Stéphane Gimenez’s answer.
Answers:
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Method 1
The same written for zsh in a much cleaner way:
#!/bin/zsh
typeset -A names
names[no]="global default"
names[fi]="normal file"
names[di]="directory"
names[ln]="symbolic link"
names[pi]="named pipe"
names[so]="socket"
names[do]="door"
names[bd]="block device"
names[cd]="character device"
names[or]="orphan symlink"
names[mi]="missing file"
names[su]="set uid"
names[sg]="set gid"
names[tw]="sticky other writable"
names[ow]="other writable"
names[st]="sticky"
names[ex]="executable"
for i in ${(s.:.)LS_COLORS}
do
key=${i%=*}
color=${i#*=}
name=${names[(e)$key]-$key}
printf 'e[%sm%se[mn' $color $name
done
Method 2
You need to escape the = in ${i%=*} because otherwise the suffix pattern =* undergoes = expansion, so = is interpreted as a command name. This is the cause of the * not found error.
Zsh doesn’t split words on variable substitutions by default, so $LS_COLORS expands to a single word. To have the for loop operate on the colon-separated parts of $LS_COLORS, use for i in $=LS_COLORS. Or more idiomatically in zsh, don’t use IFS but instead specify explicitly how to split: for i in ${(s.:.)LS_COLORS}.
The syntax ${!x} to mean “the value of the variable whose name is $x” is specific to bash. Zsh has an equivalent construct, the P parameter expansion flag: ${(P)x}.
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0