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Perl script to search a line and copy it to another line

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# 1  
Old 12-27-2008
Perl script to search a line and copy it to another line
Hi
I have a log file (say log.txt). I have to search for a line which has the string ( say ERROR) in the log file and copy 15 lines after this into another file (say error.txt). Can someone give me the code and this has to be in PERL


Thanks in advance
Ammu
# 2  
Old 12-27-2008
Quote:
Originally Posted by ammu
Hi
I have a log file (say log.txt). I have to search for a line which has the string ( say ERROR) in the log file and copy 15 lines after this into another file (say error.txt). Can someone give me the code and this has to be in PERL

Why does it have to be in Perl? Is it homework?

It's a simple problem to solve in awk:

Code:
awk '/ERROR/ && target == 0 { target = NR + 15; next }
target && NR <= target { print }
' log.txt > error.txt

# 3  
Old 12-28-2008
I am getting below error. I wanted it in perl because my script is in PERL.
Can some one give me the code

awk: syntax error near line 1
awk: bailing out near line 1

Thanks
Ammu
# 4  
Old 12-29-2008
Quote:
Originally Posted by ammu
Hi
I have a log file (say log.txt). I have to search for a line which has the string ( say ERROR) in the log file and copy 15 lines after this into another file (say error.txt). Can someone give me the code and this has to be in PERL


Thanks in advance
Ammu
Generic example, apply your own file I/O operations as required.

Code:
while (<>) {
   if (/ERROR/) {
      <> for (1..15);#<- skips 15 lines
      print "here is the line you wanted: $_";
   }
}

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