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Show numerical values for each of the 256 colors in bash

Terminal - Show numerical values for each of the 256 colors in bash
for code in {0..255}; do echo -e "\e[38;05;${code}m $code: Test"; done
2010-06-19 02:14:42
User: scribe
Functions: echo
33
Up
Down
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.

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Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
for i in {0..255}; do echo -e "\e[38;05;${i}m${i}"; done | column -c 80 -s ' '; echo -e "\e[m"
2010-07-21 17:30:36
User: cout
Functions: column echo
Tags: bash color column colors
7
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Show numerical values for each of the 256 colors in bash

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.

Comments (1) | Add to favourites | Report as malicious
for code in {000..255}; do print -P -- "$code: %F{$code}Test%f"; done
2010-06-18 22:19:49
User: atoponce
Tags: zsh
1
Up
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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.

Comments (1) | Add to favourites | Report as malicious
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))
2013-01-13 18:23:44
User: claudius
Functions: column printf seq
Tags: bash color colors
0
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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.

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Know a better way?

If you can do better, submit your command here.

What others think

hmm, needs to set a background color so it doesn't blend in so badly with my shell's bg color.

Comment by kaedenn 152 weeks and 4 days ago

I'd echo the code itself rather than "Test".

See http://www.pixelbeat.org/scripts/ansi_colours.sh

For a 256 color palette you can hover over to get the code see:

http://www.pixelbeat.org/docs/terminal_colours/#256

Comment by pixelbeat 152 weeks and 3 days ago

More compact output all on one line:

for code in {0..255}; do echo -en "\e[38;05;${code}m $code:"; done
Comment by dattaway 152 weeks and 1 day ago

The pretty part of the table, nicely formatted:

for line in {0..5}; do for col in {0..39}; do code=$(( $col * 6 + $line + 16 )); printf $'\e[38;05;%dm %03d' $code $code ;done; echo ;done
Comment by bartonski 150 weeks and 2 days ago

Your point of view

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