Bash ansi escape codes: Difference between revisions
From wikinotes
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= Colours = | = Colours = | ||
<blockquote> | |||
== Termcap Database (portable) == | |||
<blockquote> | <blockquote> | ||
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 | ||
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} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- Termcap Database (portable) --> | |||
== VT220(?) non-portable == | |||
<blockquote> | |||
The non-portable way of handling this is as follows (but most terminals use this set of escape codes). | The non-portable way of handling this is as follows (but most terminals use this set of escape codes). | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
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${RESET}reset" | ${RESET}reset" | ||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- VT220(?) non-portable --> | |||
</blockquote><!-- Colours --> | </blockquote><!-- Colours --> |
Revision as of 17:28, 2 October 2022
Terminals are controled ansi escape sequences.
These sequences vary from terminal to terminal.
The tput command uses your terminal's termcap library to expose a common interface.
Colours
Termcap Database (portable)
See list of colours https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
echo -e '\e[32m' # echo -e '\e[m' # reset colour tput setab 7 # set bg colour tput setaf 7 # set fg colour tput bold # set bold tput sgr0 # reset colours yellow=$(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=$(tput sgr0) fi }VT220(?) non-portable
The non-portable way of handling this is as follows (but most terminals use this set of escape codes).
ESC='\033' RED="${ESC}[31m" GREEN="${ESC}[32m" RESET="${ESC}[0m" echo "\ ${RED}red\ ${GREEN}green\ ${RESET}reset"