Difference between revisions of "Grep"
From Linuxintro
imported>ThorstenStaerk |
imported>ThorstenStaerk |
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| − | Show all lines that do '''not''' contain blabla | + | * Show all lines that do '''not''' contain blabla |
grep -v blabla filename.txt | grep -v blabla filename.txt | ||
| + | |||
| + | * Match any character | ||
| + | With a dot (.) you can match any character | ||
| + | grep -E "L.nux" | ||
| + | Matches Linux, Lanux L nux, but not Lnux | ||
| + | |||
| + | * Match all characters | ||
| + | With a .* you can match an arbitrary count of any character | ||
| + | grep -E "L.*nux" | ||
| + | Matches Linux, Liinux, Lanux, L nux and Lnux | ||
| + | |||
| + | * Match any character but blank | ||
| + | grep -E "L[^ ]nux" | ||
| + | Match Linux, Lanux, but not Lnux and not L nux | ||
= See also = | = See also = | ||
* [[regex]] | * [[regex]] | ||
Revision as of 08:58, 12 May 2009
- Show all lines that do not contain blabla
grep -v blabla filename.txt
- Match any character
With a dot (.) you can match any character
grep -E "L.nux"
Matches Linux, Lanux L nux, but not Lnux
- Match all characters
With a .* you can match an arbitrary count of any character
grep -E "L.*nux"
Matches Linux, Liinux, Lanux, L nux and Lnux
- Match any character but blank
grep -E "L[^ ]nux"
Match Linux, Lanux, but not Lnux and not L nux
