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Regex equivalent to ! (not)

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# 1  
Old 01-26-2012
Regex equivalent to ! (not)
I want to have a regex line equivalent to the following:

Code:
!\bfalse\b

basically search for not exact string "false"
# 2  
Old 01-26-2012
using egrep:

Code:
egrep '!(\bfalse\b)'   myinputfile

This means reject lines which contain the word 'false', everything else is printed.
# 3  
Old 01-26-2012
Quote:
Originally Posted by streetfighter2
I want to have a regex line equivalent to the following:

Code:
!\bfalse\b

basically search for not exact string "false"
What cmd are you trying this for...
# 4  
Old 01-26-2012
Quote:
Originally Posted by shamrock
What cmd are you trying this for...
I'm actually using this command with a script that takes regular expressions as arguments.
# 5  
Old 01-26-2012
or grep -v if you don't have egrep available.
# 6  
Old 01-27-2012
Thanks for the response guys, I figured out that the script I was running the regex has an argument to "inverse regex" and that did the trick Smilie
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