# Strings - Regular Expression (scripting commands)

- [regexFind](../../commands/regexFind.md): Searches in a string with a regular expression.
- [regexMatch](../../commands/regexMatch.md): Returns whether the *haystack* matches the *pattern*.
- [regexReplace](../../commands/regexReplace.md): Searches given *haystack* with given *pattern* and replaces all matches with given *replaceString*.