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Full Discussion: diff 2 files; output diff's to 3rd file
Top Forums Shell Programming and Scripting diff 2 files; output diff's to 3rd file Post 21821 by blt123 on Thursday 23rd of May 2002 10:05:17 AM
Old 05-23-2002
Question diff 2 files; output diff's to 3rd file
Hello,
I want to compare two files. All records in file 2 that are not in file 1 should be output to file 3.

For example:

file 1
123
1234
123456

file 2
123
2345
23456

file 3 should have
2345
23456

I have looked at diff, bdiff, cmp, comm, diff3 without any luck!

Thanks for your help
Barbara
This User Gave Thanks to blt123 For This Post:
ramaraobvs
 

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LEARN ABOUT PLAN9

zcmp

ZDIFF(1)						      General Commands Manual							  ZDIFF(1)

NAME

       zcmp, zdiff - compare compressed files

SYNOPSIS

       zcmp [ cmp_options ] file1 [ file2 ]
       zdiff [ diff_options ] file1 [ file2 ]

DESCRIPTION

       Zcmp  and  zdiff are used to invoke the cmp or the diff program on files compressed via gzip.  All options specified are passed directly to
       cmp or diff.  If only file1 is specified, it is compared to the uncompressed contents of file1.gz.  If two files are specified, their  con-
       tents  (uncompressed  if  necessary)  are  fed to cmp or diff.  The input files are not modified.  The exit status from cmp or diff is pre-
       served.

SEE ALSO

       cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1)

BUGS

       Messages from the cmp or diff programs may refer to file names such as "-" instead of to the file names specified.

																	  ZDIFF(1)
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