grep
Created: May 02, 2019 (Updated: September 05, 2020)
| Description | Command |
|---|---|
| Case insensitive. | -i |
| Include INT lines after matched strings. | -A INT |
| Include INT lines before matched strings. | -B INT |
| The same number of lines before and after. | -C INT |
| Return files with no match. | -L |
| Invert match. | -v |
Find non-ASCII characters
grep -R --color='auto' -P -n "[\x80-\xFF]" DIRECTORY
Find non-Unicode characters
grep -axvR '.*' DIRECTORY