Changing colour that grep uses for matching

pan64 · 05-26-2022, 08:58 AM

By default coloring does not work when you pipe grep output to another command.
You need to specify --color=always to make it work.

Otherwise would be nice to post full commands, your posts are almost completely useless.

Faki · 05-26-2022, 10:01 AM

Code:

echo $GREP_COLORS

gives an empty line. So there is something going on in my .bashrc settings.

pan64 · 05-26-2022, 10:05 AM

please try

Code:

echo $GREP_COLORS | od -xc

michaelk · 05-26-2022, 10:46 AM

Did you logout and log back in? That is the easiest way to reload everything.

teckk · 05-26-2022, 12:24 PM

Where did you get the idea for 46?

Code:

col0=$(tput setaf 0) #0 black
col1=$(tput setaf 1) #1 red
col2=$(tput setaf 2) #2 green
col3=$(tput setaf 3) #3 yellow
col4=$(tput setaf 4) #4 blue
col5=$(tput setaf 5) #5 magenta
col6=$(tput setaf 6) #6 cyan
col7=$(tput setaf 7) #7 white
clr=$(tput sgr0) #clear

for i in $col{0..7}; do
    echo ""$i"Hello world"$clr""
done

This does not give a color.

Code:

echo ""$(tput setaf 46)"Hello world"$clr""

teckk · 05-26-2022, 12:34 PM

Also

Code:

<<'------Bash Block Remark------'
Black        0;30     Dark Gray     1;30
Blue         0;34     Light Blue    1;34
Green        0;32     Light Green   1;32
Cyan         0;36     Light Cyan    1;36
Red          0;31     Light Red     1;31
Purple       0;35     Light Purple  1;35
Brown/Orange 0;33     Yellow        1;33
Light Gray   0;37     White         1;37
------Bash Block Remark------

for i in {30..37}; do
    echo -e "\e[0;"$i"mHello world"
done