grep - Global Regular Expression and Print

Intro

• https://www.gnu.org/software/grep/

Search in files with given extensions

$ grep --color -nrH --null \
    --include '*.md' --include '*.hs' \
    -e 'case.*of' ../../

Exclude certain directories

For example, search for “default-config”, except in files inside the node_modules and dist directories:

$ grep --exclude-dir node_modules,dist -rl default-config