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Top Forums Shell Programming and Scripting Question regarding the diff command Post 302389933 by mikep9 on Tuesday 26th of January 2010 12:11:20 PM
Old 01-26-2010
The diff command displays a different version of lines that are found when comparing two files. The < character precedes lines from the first file and > precedes lines from the second file.

(Peek and O'Reilly, Unix Power Tools, O'Reilly and Ass, 1993 p 507)
 

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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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