---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# exrex

> Generate all/random matching strings for a regular expression.
> It can also simplify regular expressions.
> More information: <https://github.com/asciimoo/exrex>.

- Generate all possible strings that match a regular expression:

`exrex '{{regular_expression}}'`

- Generate a random string that matches a regular expression:

`exrex --random '{{regular_expression}}'`

- Generate at most 100 strings that match a regular expression:

`exrex --max-number {{100}} '{{regular_expression}}'`

- Generate all possible strings that match a regular expression, joined by a custom delimiter string:

`exrex --delimiter "{{, }}" '{{regular_expression}}'`

- Print count of all possible strings that match a regular expression:

`exrex --count '{{regular_expression}}'`

- Simplify a regular expression:

`exrex --simplify '{{ab|ac}}'`

- Print eyes:

`exrex '{{[oO0](_)[oO0]}}'`

- Print a boat:

`exrex '{{( {20}(\| *\|-{22}|\|)|\.={50}| ( ){0,5}\\.| {12}~{39})}}'`
