Regex syntax
- This article is currently a stub; it means I'm aware it's short and I probably intend to expand on the subject in the future!
I can never remember which programs use which regex variants, so here's a quick recap sheet.
| grep (GNU) | sed (GNU) | vim | python | |
|---|---|---|---|---|
| capture | \( ... \) | \( ... \) | \( ... \) | ( ... ) |
| option | \| | \| | \| | | |
| word boundary | \< or \> | \< or \> | \< or \> | \b |
| zero or more | * | * | * | * |
| one or more | \+ | \+ | \+ | + |