Colorized grep — viewing the entire file with highlighted matches

Question

I find grep\'s --color=always flag to be tremendously useful. However, grep only prints lines with matches (unless you ask for context lines). Give

Answer 1

If you want highlight several patterns with different colors see this bash script.

Basic usage:

echo warn error debug info 10 nil | colog

You can change patterns and colors while running pressing one key and then enter key.