System Grab Bag

View all TLDR pages from common (or from all pages)

grex

Generate regular expressions. More information: https://github.com/pemistahl/grex.
  • Generate a simple regular expression:
    grex {{space_separated_strings}}
  • Generate a case-insensitive regular expression:
    grex -i {{space_separated_strings}}
  • Replace digits with '\d':
    grex -d {{space_separated_strings}}
  • Replace Unicode word character with '\w':
    grex -w {{space_separated_strings}}
  • Replace spaces with '\s':
    grex -s {{space_separated_strings}}
  • Add {min, max} quantifier representation for repeating sub-strings:
    grex -r {{space_separated_strings}}

License and Disclaimer

The content on this page is copyright © 2014—present the tldr-pages team and contributors.
This page is used with permission under Creative Commons Attribution 4.0 International License.

While we do attempt to make sure content is accurate, there isn't a warranty of any kind.