Tag:Grep regular expression

  • Talking about Linux grep and regular expression


    Grep introduction Grep is a powerful text search tool, which can use regular expressions to search text and print matching lines. Generally, grep has three versions: grep, egrep (equivalent to grep-E) and fgrep. Egrep is an extended grep, fgrep is a fast grep (fixed strings to search for text, does not support the reference of […]