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Adding Color Escape Codes to global CC array for use by echo -e

Terminal - Adding Color Escape Codes to global CC array for use by echo -e
declare -ax CC; for i in `seq 0 7`;do ii=$(($i+7)); CC[$i]="\033[1;3${i}m"; CC[$ii]="\033[0;3${i}m"; done
2009-09-21 07:00:55
User: AskApache
1
Adding Color Escape Codes to global CC array for use by echo -e

I was looking for the fastest way to create a bunch of ansi escapes for use in echo -e commands throughout a lot of my shell scripts. This is what I came up with, and I actually stick that loop command in a function and then just call that at the beginning of my scripts to not clutter the environment with these escape codes, which can wreck havok on my terminal when I'm dumping the environment. More of a cool way to store escape ansi codes in an array. You can echo them like:

echo -e "${CC[15]}This text is black on bright green background."

I usually just use with a function:

# setup_colors - Adds colors to array CC for global use # 30 - Black, 31 - Red, 32 - Green, 33 - Yellow, 34 - Blue, 35 - Magenta, 36 - Blue/Green, 37 - White, 30/42 - Black on Green '30\;42' function setup_colors(){ declare -ax CC; for i in `seq 0 7`;do ii=$(($i+7));CC[$i]="\033[1;3${i}m";CC[$ii]="\033[0;3${i}m";done;CC[15]="\033[30;42m"; export R='\033[0;00m';export X="\033[1;37m"; }; export -f setup_colors

CC[15] has a background of bright green which is why it is separate. R resets everything, and X is my default font of bright white.

CC[15]="\033[30;42m"; R=$'\033[0;00m'; X=$'\033[1;37m'

Those are just my favorite colors that I often use in my scripts. You can test which colors by running

for i in $(seq 0 $((${#CC[@]} - 1))); do echo -e "${CC[$i]}[$i]\n$R"; done

See: http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html for more usage.

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Terminal - Alternatives

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What others think

how do you terminate the coloring so that subsequent shell prompts return to the original coloring?

Comment by bwoodacre 258 weeks ago

@bwoodacre: echo -e "\\033[0m]" will reset your formatting, I believe. Also, in terms that support it, "reset" would work

Comment by kaedenn 258 weeks ago

Erm, echo -e "\033[0m;", typos galore in my previous post

Comment by kaedenn 258 weeks ago

No need for seq

for i in {0..7}

or

for ((i=0; i<=${#CC[@]} - 1; i++))
Comment by dennisw 257 weeks and 1 day ago

Your point of view

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