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Full Discussion: Pattern Matching in PERL
Top Forums Shell Programming and Scripting Pattern Matching in PERL Post 302594378 by aravindj80 on Tuesday 31st of January 2012 07:43:37 AM
Old 01-31-2012
Pattern Matching in PERL

I have a 2 files in .gz format and it consists of 5 million lines the format of the file would be

gzcat file1.gz | more

abcde
aerere
ffgh56
..
..
12345

gzcat file2.gz | more

abcde , 12345 , 67890,
ffgh56 , 45623 ,12334


whatever the string is in the file1 should be matched with the file 2 and the complete line in file 2 need to be printed in file 3

if it can executed with the zip format only it would be helpful

tried fgrep it is failing due to source file due to memory limitations

So need some script using PERL or AWK.
 

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XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files SYNOPSIS
xzcmp [cmp_options] file1 [file2] xzdiff [diff_options] file1 [file2] lzcmp [cmp_options] file1 [file2] lzdiff [diff_options] file1 [file2] DESCRIPTION
xzcmp and xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1). All options specified are passed directly to cmp or diff. If only one file is specified, then the files compared are file1 (which must have a suffix of a supported com- pression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they are uncom- pressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp or diff is preserved. The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils. SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1) BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified. Tukaani 2009-07-05 XZDIFF(1)
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