Command-line Knowledge Base

`grep`

Find Files Containing Specific String ²

grep -rnw '/path/to/somewhere/' -e 'pattern'

Find Files of a Specific Extension Containing a Specific String ³

grep -rnw . --include \*.php '/path/to/somewhere/' -e 'pattern'

To Grep for Multiple Strings or Patterns — Example 1/3 ¹

grep 'pattern1\|pattern2' fileName_or_filePath

To Grep for Multiple Strings or Patterns — Example 2/3 ¹

grep -e extra -e value -e service sample.txt

To Grep for Multiple Strings or Patterns — Example 3/3 ¹

findmnt -D |grep -e SOURCE -e '^/dev'

NULL