Colored bash man pages and log files
Below you can find bash codes which you can use with man pages or while reading log files:
'\e[0;30m' # Black - Regular '\e[0;31m' # Red '\e[0;32m' # Green '\e[0;33m' # Yellow '\e[0;34m' # Blue '\e[0;35m' # Purple '\e[0;36m' # Cyan '\e[0;37m' # White '\e[1;30m' # Black - Bold '\e[1;31m' # Red '\e[1;32m' # Green '\e[1;33m' # Yellow '\e[1;34m' # Blue '\e[1;35m' # Purple '\e[1;36m' # Cyan '\e[1;37m' # White '\e[4;30m' # Black - Underline '\e[4;31m' # Red '\e[4;32m' # Green '\e[4;33m' # Yellow '\e[4;34m' # Blue '\e[4;35m' # Purple '\e[4;36m' # Cyan '\e[4;37m' # White '\e[40m' # Black - Background '\e[41m' # Red '\e[42m' # Green '\e[43m' # Yellow '\e[44m' # Blue '\e[45m' # Purple '\e[46m' # Cyan '\e[47m' # White '\e[0m' # Text Reset
If you are using less application for viewing man pages you can add below variables to your .bashrc file. After that reload .bashrc variables with command: source /home/user/.bashrc and you will see colored man pages.
export LESS_TERMCAP_mb=$'\E[01;31m' export LESS_TERMCAP_md=$'\E[01;31m' export LESS_TERMCAP_me=$'\E[0m' export LESS_TERMCAP_se=$'\E[0m' export LESS_TERMCAP_so=$'\E[01;44;33m' export LESS_TERMCAP_ue=$'\E[0m' export LESS_TERMCAP_us=$'\E[01;32m'
For log files use perl syntax with your combined regex:
tail -f /var/log/mail.log | perl -pe 's/(fatal|error|panic|success)/\e[1;31m$&\e[0m/g'
Last colored trick. Use grep command with --color switch.
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