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Old 11-21-2009, 01:29 AM   #1
nrg
LQ Newbie
 
Registered: Nov 2009
Posts: 8

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Simple regex match without replace?


I'm currently doing this:

Code:
perl -pe 's/.+\/(.+)/\1/')
Which will replace

Code:
path/to/myfile.exe
with

Code:
myfile.exe
-- How do I retrieve "myfile.exe" without a replace statement?

For clarification, I have two files, ivy.xml and build.xml.

Ivy.xml line:

Code:
<dependency org="com.project" name="my-service" rev="2.9.1"/>
Build.xml line:

Code:
<unzip src="${ivy.resolved.lib.dir}/my-service-2.9.0.jar" dest="${classes.dir}" />
I am trying to update the build.xml line with the ivy.xml version, so I need to run the following regex:

Code:
my-service\"\ rev=\"(.+)\"
so I can grab \1 as, for example $code, then run:

Code:
perl -p -i -e "s/(.+my-service-)(.+?)(\.jar.+)\.jar.+/\1$code\3/"
on build.xml, thus updating the version.

On a related note, that last perl line doesn't seem like the right way to go about it -- is there a way to match the line, specific to the service, but only update a section thereof?
 
Old 11-21-2009, 03:04 AM   #2
nrg
LQ Newbie
 
Registered: Nov 2009
Posts: 8

Original Poster
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In answer to my original question, this is what I ended up with:

Code:
buildversion=$(echo $service-name|perl -pe "s/.+\-(.+)\.j.+/\1/")
 
  


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