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Full Discussion: Re:using the diff command
Top Forums UNIX for Dummies Questions & Answers Re:using the diff command Post 302554443 by sk1418 on Monday 12th of September 2011 05:04:14 AM
Old 09-12-2011
if you want to use diff to check if the two files are with same content. you may consider to get the return code of your diff command. (e.g. by $?)
if the two files are the same, diff returns 0;
if there is difference, diff returns 1;
if there is error in command, diff returns 2;
 

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LEARN ABOUT DEBIAN

sccs-sccsdiff

sccs-sccsdiff(1)                                                   User Commands                                                  sccs-sccsdiff(1)

NAME

       sccs-sccsdiff, sccsdiff - compare two versions of an SCCS file

SYNOPSIS

       /usr/ccs/bin/sccsdiff [-p] -rsid -rsid [diff-options] s.filename

DESCRIPTION

       sccsdiff compares two versions of an SCCS file and displays the differences between the two versions. Any number of SCCS files may be spec-
       ified. The options specified apply to all named s.files.

OPTIONS

       The following options are supported:

       -p              Pipe output for each file through pr(1).

       -rsid           Specify a version corresponding to the indicated SCCS delta ID (SID) for comparison.  Versions are passed to diff(1) in the
                       order given.

       diff-options    Pass options to diff(1), including: -b, -c, -e, -f, -h, -u, -C number, -U number, and -D string.

FILES

       /tmp/get?????   temporary files

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWsprot                    |
       +-----------------------------+-----------------------------+

SEE ALSO

       diff(1), sccs(1), sccs-delta(1), sccs-get(1), sccs-help(1), sccs-prs(1), sccs-prt(1), what(1), sccsfile(4), attributes(5)

DIAGNOSTICS

       filename: No differences        If the two versions are the same.

       Use the SCCS help command for explanations of other messages. See sccs-help(1).

SunOS 5.10                                                          28 Sep 2001                                                   sccs-sccsdiff(1)
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