Show numerical values for each of the 256 colors in bash

for i in {0..255}; do echo -e "\e[38;05;${i}m${i}"; done | column -c 80 -s ' '; echo -e "\e[m"

I like the other three versions but one uses nested loops and another prints every color on a separate line. Both versions fail to reset colors before giving the prompt back. This version uses the column command to print a table so all the colors fit on one screen. It also resets colors back to normal before as a last step.

By: cout

2010-07-21 17:30:36

column echo bash color column colors

4 Alternatives + Submit Alt

Show numerical values for each of the 256 colors in bash

Same as http://www.commandlinefu.com/commands/view/5876, but for bash. This will show a numerical value for each of the 256 colors in bash. Everything in the command is a bash builtin, so it should run on any platform where bash is installed. Prints one color per line. If someone is interested in formatting the output, paste the alternative.
This is sample output - yours may be different.
49

for code in {0..255}; do echo -e "\e[38;05;${code}m $code: Test"; done

scribe · 2010-06-19 02:14:42 15
Show numerical values for each of the 256 colors in ZSH

This will show a numerical value for each of the 256 colors in ZSH. Everything in the command is a ZSH builtin, so it should run on any platform where ZSH is installed. Prints one color per line. If someone is interested in formatting the output, paste the alternative.
This is sample output - yours may be different.
3

for code in {000..255}; do print -P -- "$code: %F{$code}Test%f"; done

atoponce · 2010-06-18 22:19:49 8
Show numerical values for each of the 256 colors in bash for bold and normal fonts

Shows the ?rendering? for each of the 256 colours in both the bold and normal variant. Using seq is helpful to get even lines, passing $((COLUMNS*2)) to column sort-of-handles the nonprintable characters.
This is sample output - yours may be different.
0

for code in $(seq -w 0 255); do for attr in 0 1; do printf "%s-%03s %bTest%b\n" "${attr}" "${code}" "\e[${attr};38;05;${code}m" "\e[m"; done; done | column -c $((COLUMNS*2))

claudius · 2013-01-13 18:23:44 6
Show numerical values for each of the 256 colors in ZSH

Prints an easy-to-copy color code for each color. Show Sample Output
This is sample output - yours may be different.
```
\e[38;05;1m
\e[38;05;2m
\e[38;05;3m
```
0

for i in {0..255}; do echo -e "\e[38;05;${i}m\\\e[38;05;${i}m"; done | column -c 80 -s ' '; echo -e "\e[m"

derv82 · 2013-07-05 07:16:19 7

What Others Think

Had to replace {0..255} with `seq 0 255` to get it to work for me.

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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