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Help with editing 2nd line after match

 
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Top Forums UNIX for Dummies Questions & Answers Help with editing 2nd line after match
# 1  
Old 04-06-2011
Lightbulb Help with editing 2nd line after match
Hi All
I would like to break down each next line that matches SK1.chr* in this case NNNNNN.... into 100 characters each after
Code:
SK1.chr*
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Can someone help me figure this out if there is a Perl way to do. I'm learning Perl so I would appreciate Perl specific solutions.
Cheers Smilie
# 2  
Old 04-06-2011
Code:
man fold

?
Code:
fold -w 100 infile

?
This User Gave Thanks to ctsgnb For This Post:
pawannoel
# 3  
Old 04-06-2011
Yeah that did the job ... I didnt know about the fold command .. Cheers Smilie

---------- Post updated at 09:05 AM ---------- Previous update was at 09:00 AM ----------

What if I had to write the edited output as a separate file using the first line as file name? I know I can do this using > operator and output_filename, but I want to automatise this for the whole big file. My original file has several such lines so I would like to have multiple files as output.
Cheers Smilie
# 4  
Old 04-06-2011
Try:
Code:
perl -ln0e 'while(/(SK1.*)\n(.*)/g){$x=$2;open O,">$1";$x=~s/.{100}/$&\n/g;print O $x;}' file

This User Gave Thanks to bartus11 For This Post:
pawannoel
 
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