Matching patterns

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# 1  
Old 04-02-2011
Matching patterns

I have a file name in $f. If $f has "-" at the beginning, or "=", or does not have extension ".ry" or ".xt" or ".dat" then cerr would not be empty.

Tried the following but having some problems.

set cerr = `echo $f | awk '/^-|=|!.ry|!.xt|!.dat/'`

Last edited by kristinu; 04-02-2011 at 10:51 PM..
# 2  
Old 04-03-2011
You may need to enclose inside brackets.

awk `/^(-|=)/ && $0 !~ /(.ry|.xt|.dat)/`

# 3  
Old 04-03-2011
echo "hello=sdsd.ry" | awk '/(^-|=)/ && $0 !~ /(.ry|.xt|.dat)/'

gives nothing

if there is an = or starts with -, I want it to output the string
# 4  
Old 04-03-2011
awk '(/^-/||/=/)&&!/(\.ry|\.xt|\.dat)/'

# 5  
Old 04-03-2011
I think it should be

awk '/(^-|=)/ || ! /(.ry|.xt|.dat)/'`

Originally Posted by yinyuemi
awk '(/^-/||/=/)&&!/(\.ry|\.xt|\.dat)/'

---------- Post updated at 01:34 AM ---------- Previous update was at 01:31 AM ----------

We're getting there.

Yes I needed a "\" before the "." Smilie

---------- Post updated at 01:43 AM ---------- Previous update was at 01:34 AM ----------

Using "hellodfdfxt" gave me no result. There is no ".xt" in it, but just has "xt" in it, so should have printed the string.

 echo hellodfdfxt | awk '/(^-|=)/ && ! /(\.ry|\.xt|\.dat)/'

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