tldr/osx/grep.md

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Executable File

grep

  • Matches patterns in input text
  • Supports simple patterns and regular expressions

Search for an exact string

grep something FILE

Use a regex instead of a word

grep -e ^regex$ FILE

See 3 lines of context

grep -C 3 something FILE

Print the count of matches

grep -c something FILE

Use the standard input instead

cat FILE | grep something