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Full Discussion: [Help] PERL Script - grep multiple lines
Top Forums Shell Programming and Scripting [Help] PERL Script - grep multiple lines Post 302267493 by otheus on Friday 12th of December 2008 01:15:07 PM
Old 12-12-2008
Code:
#!/usr/bin/perl -w
my @data;
while (<>) { 
  push @data, $1 if /^\s*Generation (\d+)/;
  push @data, ($1, $2) if /imported at \w+ (\w+) .* (\d{4})\s*$/;
}

Now your data exists in the @data array. Every 3rd element is a new record. To extract, you can use, well, lots of things:
Code:
while ($#data >= 0) { 
   printf "%s\t%s\t%s\n", splice(@data,0,3);
}

There's about n + 1 other ways of doing such a thing.
Last edited by otheus; 12-12-2008 at 02:16 PM.. Reason: typo; code error
 

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LEARN ABOUT NETBSD

zfgrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD
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