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Need help in string extraction using regular expressions

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# 1  
Old 05-18-2009
Question Need help in string extraction using regular expressions
Hi, I am a new bee to this forum.

I am trying to extract the text after a matching pattern from a url using regular expression.

Ex:
Code:
http://locatlhost:2020/proxy/checkthisout

I want to extract the string after proxy/. I am not familiar with reg ex. Can someone please help?
Last edited by Franklin52; 05-18-2009 at 04:13 PM.. Reason: Replace url tags
# 2  
Old 05-25-2009
Quote:
I am a new bee ... I want to extract the string
Do you want to extract the string or the sting? Smilie

man sed

You probably want something like:
Code:
sed -n 's/.*http:\/\/localhost:3030\/proxy\///p'

# 3  
Old 05-25-2009
Quote:
Originally Posted by akatraga
...
I am trying to extract the text after a matching pattern from a url using regular expression.
Ex:
Code:
http://locatlhost:2020/proxy/checkthisout

...
You can use regular expressions with more than one command.

Using plain old bash shell:

Code:
$
$ URL="http://localhost:2020/proxy/checkthisout"
$
$ echo ${URL##*/}
checkthisout
$
$ echo `expr "$URL" : '.*/\(.*$\)'`
checkthisout
$

Using perl:

Code:
$
$ echo "http://locatlhost:2020/proxy/checkthisout" | perl -ne 's#.*/##; print'
checkthisout
$

Using awk:

Code:
$
$ echo "http://locatlhost:2020/proxy/checkthisout" | awk 'sub(/.*\//,"")'
checkthisout
$

tyler_durden
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