Bash ansi escape codes: Difference between revisions
From wikinotes
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See list of colours https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit | See list of colours https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit | ||
<source lang="bash"> | <source lang="bash"> | ||
echo -e '\e[32m' # | echo -e '\e[32m' # | ||
echo -e '\e[m' # reset colour | echo -e '\e[m' # reset colour | ||
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echo "${yellow}foo" | echo "${yellow}foo" | ||
</source> | </source> | ||
I usually do something like this for help text | |||
<syntaxhighlight lang="bash"> | |||
setup_colours() { | |||
if [ $(tput colors) -gt 8 ] ; then | |||
C=$(tput setaf 6) # code | |||
H=$(tput setaf 3) # heading | |||
E=$(tput setaf 1) # error | |||
B=$(tput bold) # bold | |||
R=$(tput sgr0) # reset | |||
else | |||
C=$(tput sgr0) | |||
H=$(tput sgr0) | |||
E=$(tput sgr0) | |||
B=$(tput sgr0) | |||
R=$(tput sgr0) | |||
fi | |||
} | |||
</syntaxhighlight> | |||
</blockquote><!-- Colours --> | </blockquote><!-- Colours --> |
Revision as of 16:22, 25 December 2021
Terminals are controled ansi escape sequences.
These sequences vary from terminal to terminal.
The tput command uses your terminal's termcap library to expose a common interface.
Colours
See list of colours https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
echo -e '\e[32m' # echo -e '\e[m' # reset colour tput setab 7 # set bg colour tput setaf 7 # set fg colour tput bold # set bold tput sgr0 # reset colours yellow=$(tput setaf 3) echo "${yellow}foo"I usually do something like this for help text
setup_colours() { if [ $(tput colors) -gt 8 ] ; then C=$(tput setaf 6) # code H=$(tput setaf 3) # heading E=$(tput setaf 1) # error B=$(tput bold) # bold R=$(tput sgr0) # reset else C=$(tput sgr0) H=$(tput sgr0) E=$(tput sgr0) B=$(tput sgr0) R=$(tput sgr0) fi }