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searching one pattern in file and also counting

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Top Forums UNIX for Advanced & Expert Users searching one pattern in file and also counting
# 8  
Old 10-20-2008
Quote:
Originally Posted by tayyabq8
Code:
nawk '/^[Ss][^ ]*[Rr]/ || length($2) == 4' infile

Example given by the OP, get all those lines which start with S or s ^[Ss] and very next word should start with be R or r [Rr], [^ ]* means look until you find space that means next word.

[^ ]* Means non emty space fallowed by any character na?
# 9  
Old 10-20-2008
we are using like thease [^,] means 0 or more characters which are not commas
So [^ ] means one or more not space?? right?

And also one thing s/ *$// means remove all space at endof the line.. i found this from vi material .......but i did'nt get this one ?? $ means end of the line ok? *$ means ?? and also [ \t]*??
Last edited by ksr.test; 10-20-2008 at 01:15 PM..
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