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Wed Jul 12 2000 Prospector <bugzilla@redhat.com>
- automatic rebuild
Thu Jul 06 2000 Trond Eivind Glomsrd <teg@redhat.com>
- fix %changelog entries (escape them)
- update source location
- remove manual stripping
- add URL
Tue Jun 06 2000 Than Ngo <than@redhat.de>
- add %defattr
- use rpm macros
Wed May 31 2000 Ngo Than <than@redhat.de>
- put man pages and info files in correct place
- cleanup specfile
Thu Feb 03 2000 Preston Brown <pbrown@redhat.com>
- rebuild to gzip man pages.
Mon Apr 19 1999 Jeff Johnson <jbj@redhat.com>
- man pages not in %files.
- but avoid conflict for diff.1
Sun Mar 21 1999 Cristian Gafton <gafton@redhat.com>
- auto rebuild in the new build environment (release 14)
Sun Mar 14 1999 Jeff Johnson <jbj@redhat.com>
- add man pages (#831).
- add %configure and Prefix.
Thu Dec 17 1998 Cristian Gafton <gafton@redhat.com>
- build for glibc 2.1
Tue Jul 14 1998 Bill Kawakami <billk@home.com>
- included the four man pages stolen from Slackware
Tue May 05 1998 Prospector System <bugs@redhat.com>
- translations modified for de, fr, tr
Sun May 03 1998 Cristian Gafton <gafton@redhat.com>
- fixed spec file to reference/use the $RPM_BUILD_ROOT always
Wed Dec 31 1997 Otto Hammersmith <otto@redhat.com>
- fixed where it looks for 'pr' (/usr/bin, rather than /bin)
Fri Oct 17 1997 Donnie Barnes <djb@redhat.com>
- added BuildRoot
Sun Sep 14 1997 Erik Troan <ewt@redhat.com>
- uses install-info
Mon Jun 02 1997 Erik Troan <ewt@redhat.com>
- built against glibc
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diffutils-2.7.tar.gz

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.\" Copyright (c) 1987, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)cmp.1 8.1 (Berkeley) 6/6/93
.\"
.Dd June 6, 1993
.Dt CMP 1
.Os
.Sh NAME
.Nm cmp
.Nd compare two files
.Sh SYNOPSIS
.Nm cmp
.Op Fl l | Fl s
.Ar file1 file2
.Op Ar skip1 Op Ar skip2
.Sh DESCRIPTION
The cmp utility compares two files of any type and writes the results
to the standard output.
By default,
.Nm
is silent if the files are the same; if they differ, the byte
and line number at which the first difference occurred is reported.
.Pp
Bytes and lines are numbered beginning with one.
.Pp
The following options are available:
.Bl -tag -width flag
.It Fl l
Print the byte number (decimal) and the differing
byte values (octal) for each difference.
.It Fl s
Print nothing for differing files; return exit
status only.
.El
.Pp
The optional arguments
.Ar skip1
and
.Ar skip2
are the byte offsets from the beginning of
.Ar file1
and
.Ar file2 ,
respectively, where the comparison will begin.
The offset is decimal by default, but may be expressed as an hexadecimal
or octal value by preceding it with a leading ``0x'' or ``0''.
.Pp
The
.Nm cmp
utility exits with one of the following values:
.Bl -tag -width 4n
.It 0
The files are identical.
.It 1
The files are different; this includes the case
where one file is identical to the first part of
the other.
In the latter case, if the
.Fl s
option has not been specified,
.Nm cmp
writes to standard output that EOF was reached in the shorter
file (before any differences were found).
.It >1
An error occurred.
.El
.Sh SEE ALSO
.Xr diff 1 ,
.Xr diff3 1
.Sh STANDARDS
The
.Nm cmp
utility is expected to be
.St -p1003.2
compatible.

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.TH DIFF 1 "22sep1993" "GNU Tools" "GNU Tools"
.SH NAME
diff \- find differences between two files
.SH SYNOPSIS
.B diff
[options] from-file to-file
.SH DESCRIPTION
In the simplest case,
.I diff
compares the contents of the two files
.I from-file
and
.IR to-file .
A file name of
.B \-
stands for
text read from the standard input. As a special case,
.B "diff \- \-"
compares a copy of standard input to itself.
If
.I from-file
is a directory and
.I to-file
is not,
.I diff
compares the file in
.I from-file
whose file name is that of
.IR to-file ,
and vice versa. The non-directory file must not be
.BR \- .
If both
.I from-file
and
.I to-file
are directories,
.I diff
compares corresponding files in both directories, in
alphabetical order; this comparison is not recursive unless the
.B \-r
or
.B \-\-recursive
option is given.
.I diff
never
compares the actual contents of a directory as if it were a file. The
file that is fully specified may not be standard input, because standard
input is nameless and the notion of ``file with the same name'' does not
apply.
.B diff
options begin with
.BR \- ,
so normally
.I from-file
and
.I to-file
may not begin with
.BR \- .
However,
.B \-\-
as an
argument by itself treats the remaining arguments as file names even if
they begin with
.BR \- .
.SS Options
Below is a summary of all of the options that GNU
.I diff
accepts.
Most options have two equivalent names, one of which is a single letter
preceded by
.BR \- ,
and the other of which is a long name preceded by
.BR \-\- .
Multiple single letter options (unless they take an
argument) can be combined into a single command line word:
.B \-ac
is
equivalent to
.BR "\-a \-c" .
Long named options can be abbreviated to
any unique prefix of their name. Brackets
.RB ( [
and
.BR ] )
indicate that an
option takes an optional argument.
.TP
.BI \- lines
Show
.I lines
(an integer) lines of context. This option does not
specify an output format by itself; it has no effect unless it is
combined with
.B \-c
or
.BR \-u .
This option is obsolete. For proper
operation,
.I patch
typically needs at least two lines of context.
.TP
.B \-a
Treat all files as text and compare them line-by-line, even if they
do not seem to be text.
.TP
.B \-b
Ignore changes in amount of white space.
.TP
.B \-B
Ignore changes that just insert or delete blank lines.
.TP
.B \-\-brief
Report only whether the files differ, not the details of the
differences.
.TP
.B \-c
Use the context output format.
.TP
.BI "\-C " lines
.br
.ns
.TP
.BI \-\-context[= lines ]
Use the context output format, showing
.I lines
(an integer) lines of
context, or three if
.I lines
is not given.
For proper operation,
.I patch
typically needs at least two lines of
context.
.TP
.BI \-\-changed\-group\-format= format
Use
.I format
to output a line group containing differing lines from
both files in if-then-else format.
.TP
.B \-d
Change the algorithm to perhaps find a smaller set of changes. This makes
.I diff
slower (sometimes much slower).
.TP
.BI "\-D " name
Make merged if-then-else format output, conditional on the preprocessor
macro
.IR name .
.TP
.B \-e
.br
.ns
.TP
.B \-\-ed
Make output that is a valid
.I ed
script.
.TP
.BI \-\-exclude= pattern
When comparing directories, ignore files and subdirectories whose basenames
match
.IR pattern .
.TP
.BI \-\-exclude\-from= file
When comparing directories, ignore files and subdirectories whose basenames
match any pattern contained in
.IR file .
.TP
.B \-\-expand\-tabs
Expand tabs to spaces in the output, to preserve the alignment of tabs
in the input files.
.TP
.B \-f
Make output that looks vaguely like an
.I ed
script but has changes
in the order they appear in the file.
.TP
.BI "\-F " regexp
In context and unified format, for each hunk of differences, show some
of the last preceding line that matches
.IR regexp .
.TP
.B \-\-forward\-ed
Make output that looks vaguely like an
.B ed
script but has changes
in the order they appear in the file.
.TP
.B \-h
This option currently has no effect; it is present for Unix
compatibility.
.TP
.B \-H
Use heuristics to speed handling of large files that have numerous
scattered small changes.
.TP
.BI \-\-horizon\-lines= lines
Do not discard the last
.I lines
lines of the common prefix
and the first
.I lines
lines of the common suffix.
.TP
.B \-i
Ignore changes in case; consider upper- and lower-case letters
equivalent.
.TP
.BI "\-I " regexp
Ignore changes that just insert or delete lines that match
.IR regexp .
.TP
.BI \-\-ifdef= name
Make merged if-then-else format output, conditional on the preprocessor
macro
.IR name .
.TP
.B \-\-ignore\-all\-space
Ignore white space when comparing lines.
.TP
.B \-\-ignore\-blank\-lines
Ignore changes that just insert or delete blank lines.
.TP
.B \-\-ignore\-case
Ignore changes in case; consider upper- and lower-case to be the same.
.TP
.BI \-\-ignore\-matching\-lines= regexp
Ignore changes that just insert or delete lines that match
.IR regexp .
.TP
.B \-\-ignore\-space\-change
Ignore changes in amount of white space.
.TP
.B \-\-initial\-tab
Output a tab rather than a space before the text of a line in normal or
context format. This causes the alignment of tabs in the line to look
normal.
.TP
.B \-l
Pass the output through
.I pr
to paginate it.
.TP
.BI "\-L " label
.br
.ns
.TP
.BI \-\-label= label
Use
.I label
instead of the file name in the context format
and unified format
headers.
.TP
.B \-\-left\-column
Print only the left column of two common lines in side by side format.
.TP
.BI \-\-line\-format= format
Use
.I format
to output all input lines in in-then-else format.
.TP
.B \-\-minimal
Change the algorithm to perhaps find a smaller set of changes. This
makes
.I diff
slower (sometimes much slower).
.TP
.B \-n
Output RCS-format diffs; like
.B \-f
except that each command
specifies the number of lines affected.
.TP
.B \-N
.br
.ns
.TP
.B \-\-new\-file
In directory comparison, if a file is found in only one directory,
treat it as present but empty in the other directory.
.TP
.BI \-\-new\-group\-format= format
Use
.I format
to output a group of lines taken from just the second
file in if-then-else format.
.TP
.BI \-\-new\-line\-format= format
Use
.I format
to output a line taken from just the second file in
if-then-else format.
.TP
.BI \-\-old\-group\-format= format
Use
.I format
to output a group of lines taken from just the first
file in if-then-else format.
.TP
.BI \-\-old\-line\-format= format
Use
.I format
to output a line taken from just the first file in
if-then-else format.
.TP
.B \-p
Show which C function each change is in.
.TP
.B \-P
When comparing directories, if a file appears only in the second
directory of the two, treat it as present but empty in the other.
.TP
.B \-\-paginate
Pass the output through
.I pr
to paginate it.
.TP
.B \-q
Report only whether the files differ, not the details of the
differences.
.TP
.B \-r
When comparing directories, recursively compare any subdirectories
found.
.TP
.B \-\-rcs
Output RCS-format diffs; like
.B \-f
except that each command
specifies the number of lines affected.
.TP
.B \-\-recursive
When comparing directories, recursively compare any subdirectories
found.
.TP
.B \-\-report\-identical\-files
.br
.ns
.TP
.B \-s
Report when two files are the same.
.TP
.BI "\-S " file
When comparing directories, start with the file
.IR file .
This is
used for resuming an aborted comparison.
.TP
.B \-\-sdiff\-merge\-assist
Print extra information to help
.IR sdiff .
.I sdiff
uses this
option when it runs
.IR diff .
This option is not intended for users
to use directly.
.TP
.B \-\-show\-c\-function
Show which C function each change is in.
.TP
.BI \-\-show\-function\-line= regexp
In context and unified format, for each hunk of differences, show some
of the last preceding line that matches
.IR regexp .
.TP
.B \-\-side\-by\-side
Use the side by side output format.
.TP
.B \-\-speed\-large\-files
Use heuristics to speed handling of large files that have numerous
scattered small changes.
.TP
.BI \-\-starting\-file= file
When comparing directories, start with the file
.IR file .
This is
used for resuming an aborted comparison.
.TP
.B \-\-suppress\-common\-lines
Do not print common lines in side by side format.
.TP
.B \-t
Expand tabs to spaces in the output, to preserve the alignment of tabs
in the input files.
.TP
.B \-T
Output a tab rather than a space before the text of a line in normal or
context format. This causes the alignment of tabs in the line to look
normal.
.TP
.B \-\-text
Treat all files as text and compare them line-by-line, even if they
do not appear to be text.
.TP
.B \-u
Use the unified output format.
.TP
.BI \-\-unchanged\-group\-format= format
Use
.I format
to output a group of common lines taken from both files
in if-then-else format.
.TP
.BI \-\-unchanged\-line\-format= format
Use
.I format
to output a line common to both files in if-then-else
format.
.TP
.B \-\-unidirectional\-new\-file
When comparing directories, if a file appears only in the second
directory of the two, treat it as present but empty in the other.
.TP
.BI "\-U " lines
.br
.ns
.TP
.BI \-\-unified[= lines ]
Use the unified output format, showing
.I lines
(an integer) lines of
context, or three if
.I lines
is not given.
For proper operation,
.I patch
typically needs at least two lines of
context.
.TP
.B \-v
.br
.ns
.TP
.B \-\-version
Output the version number of
.IR diff .
.TP
.B \-w
Ignore white space when comparing lines.
.TP
.BI "\-W " columns
.br
.ns
.TP
.BI \-\-width= columns
Use an output width of
.I columns
in side by side format.
.TP
.BI "\-x " pattern
When comparing directories, ignore files and subdirectories whose basenames
match
.IR pattern .
.TP
.BI "\-X " file
When comparing directories, ignore files and subdirectories whose basenames
match any pattern contained in
.IR file .
.TP
.B \-y
Use the side by side output format.
.SH SEE ALSO
cmp(1), comm(1), diff3(1), ed(1), patch(1), pr(1), sdiff(1).
.SH DIAGNOSTICS
An exit status of 0 means no differences were found, 1 means some
differences were found, and 2 means trouble.

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.TH DIFF3 1 "22sep1993" "GNU Tools" "GNU Tools"
.SH NAME
diff3 \- find differences between three files
.SH SYNOPSIS
.B diff3
[options] mine older yours
.SH DESCRIPTION
The
.I diff3
command compares three files and outputs descriptions
of their differences.
The files to compare are
.IR mine ,
.IR older ,
and
.IR yours .
At most one of these three file names may be
.BR \- ,
which tells
.I diff3
to read the standard input for that file.
.SS Options
Below is a summary of all of the options that GNU
.I diff3
accepts. Multiple single letter options (unless they take an argument)
can be combined into a single command line argument.
.TP
.B \-a
Treat all files as text and compare them line-by-line, even if they
do not appear to be text.
.TP
.B \-A
Incorporate all changes from
.I older
to
.I yours
into
.IR mine ,
surrounding all conflicts with bracket lines.
.TP
.B \-B
Old behavior of -A. Shows non-conflicts.
.TP
.B \-e
Generate an
.I ed
script that incorporates all the changes from
.I older
to
.I yours
into
.IR mine .
.TP
.B \-E
Like
.BR \-e ,
except bracket lines from overlapping changes' first
and third files.
With
.BR \-e ,
an overlapping change looks like this:
.sp
.nf
<<<<<<< \fImine\fP
lines from \fImine\fP
=======
lines from \fIyours\fP
>>>>>>> \fIyours\fP
.fi
.TP
.B \-\-ed
Generate an
.I ed
script that incorporates all the changes from
.I older
to
.I yours
into
.IR mine .
.TP
.B \-\-easy\-only
Like
.BR \-e ,
except output only the nonoverlapping changes.
.TP
.B \-i
Generate
.B w
and
.B q
commands at the end of the
.I ed
script for System V compatibility. This option must be combined with
one of the
.B \-AeExX3
options, and may not be combined with
.BR \-m .
.TP
.B \-\-initial\-tab
Output a tab rather than two spaces before the text of a line in normal format.
This causes the alignment of tabs in the line to look normal.
.TP
.BI "\-L " label
.ns
.TP
.BI \-\-label= label
Use the label
.I label
for the brackets output by the
.BR \-A ,
.B \-E
and
.B \-X
options. This option may be given up to three
times, one for each input file. The default labels are the names of
the input files. Thus
.B "diff3 \-L X \-L Y \-L Z \-m A B C"
acts like
.BR "diff3 \-m A B C ,
except that the output looks like it came from
files named
.BR X ,
.B Y
and
.B Z
rather than from files
named
.BR A ,
.B B
and
.BR C .
.TP
.B \-m
.br
.ns
.TP
.B \-\-merge
Apply the edit script to the first file and send the result to standard
output. Unlike piping the output from
.I diff3
to
.IR ed ,
this
works even for binary files and incomplete lines.
.B \-A
is assumed
if no edit script option is specified.
.TP
.B \-\-overlap\-only
Like
.BR \-e ,
except output only the overlapping changes.
.TP
.B \-\-show\-all
Incorporate all unmerged changes from
.I older
to
.I yours
into
.IR mine ,
surrounding all overlapping changes with bracket lines.
.TP
.B \-\-show\-overlap
Like
.BR \-e ,
except bracket lines from overlapping changes' first
and third files.
.TP
.B \-T
Output a tab rather than two spaces before the text of a line in normal format.
This causes the alignment of tabs in the line to look normal.
.TP
.B \-\-text
Treat all files as text and compare them line-by-line, even if they
do not appear to be text.
.TP
.B \-v
.br
.ns
.TP
.B \-\-version
Output the version number of
.IR diff3 .
.TP
.B \-x
Like
.BR \-e ,
except output only the overlapping changes.
.TP
.B \-X
Like
.BR \-E ,
except output only the overlapping changes.
In other words, like
.BR \-x ,
except bracket changes as in
.BR \-E .
.TP
.B \-3
Like
.BR \-e ,
except output only the nonoverlapping changes.
.SH SEE ALSO
cmp(1), comm(1), diff(1), ed(1), patch(1), sdiff(1).
.SH DIAGNOSTICS
An exit status of 0 means
.I diff3
was successful, 1 means some
conflicts were found, and 2 means trouble.

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Summary: A GNU collection of diff utilities.
Name: diffutils
Version: 2.7
Release: 21
Group: Applications/Text
URL: http://www.gnu.org/software/diffutils/diffutils.html
Source: ftp://ftp.gnu.org/gnu/diffutils/diffutils-%{version}.tar.gz
Source1: cmp.1
Source2: diff.1
Source3: diff3.1
Source4: sdiff.1
License: GPL
Prefix: %{_prefix}
Prereq: /sbin/install-info
Buildroot: %{_tmppath}/%{name}-%{version}-root
%description
Diffutils includes four utilities: diff, cmp, diff3 and sdiff. Diff
compares two files and shows the differences, line by line. The cmp
command shows the offset and line numbers where two files differ, or
cmp can show the characters that differ between the two files. The
diff3 command shows the differences between three files. Diff3 can be
used when two people have made independent changes to a common
original; diff3 can produce a merged file that contains both sets of
changes and warnings about conflicts. The sdiff command can be used
to merge two files interactively.
Install diffutils if you need to compare text files.
%prep
%setup -q
%build
autoconf
%configure
make PR_PROGRAM=%{_bindir}/pr
%install
rm -rf $RPM_BUILD_ROOT
%makeinstall
( cd $RPM_BUILD_ROOT
gzip -9nf .%{_infodir}/diff*
mkdir -p .%{_mandir}/man1
for manpage in %{SOURCE1} %{SOURCE3} %{SOURCE4}
do
install -m 0644 ${manpage} .%{_mandir}/man1
done
)
%post
/sbin/install-info %{_infodir}/diff.info.gz %{_infodir}/dir --entry="* diff: (diff). The GNU diff."
%preun
if [ $1 = 0 ]; then
/sbin/install-info --delete %{_infodir}/diff.info.gz %{_infodir}/dir --entry="* diff: (diff). The GNU diff."
fi
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(-,root,root)
%doc NEWS README
%{_bindir}/*
%{_mandir}/*/*
%{_infodir}/diff.info*gz
%changelog
* Wed Jul 12 2000 Prospector <bugzilla@redhat.com>
- automatic rebuild
* Thu Jul 06 2000 Trond Eivind Glomsrød <teg@redhat.com>
- fix %%changelog entries (escape them)
- update source location
- remove manual stripping
- add URL
* Tue Jun 06 2000 Than Ngo <than@redhat.de>
- add %%defattr
- use rpm macros
* Wed May 31 2000 Ngo Than <than@redhat.de>
- put man pages and info files in correct place
- cleanup specfile
* Thu Feb 03 2000 Preston Brown <pbrown@redhat.com>
- rebuild to gzip man pages.
* Mon Apr 19 1999 Jeff Johnson <jbj@redhat.com>
- man pages not in %%files.
- but avoid conflict for diff.1
* Sun Mar 21 1999 Cristian Gafton <gafton@redhat.com>
- auto rebuild in the new build environment (release 14)
* Sun Mar 14 1999 Jeff Johnson <jbj@redhat.com>
- add man pages (#831).
- add %%configure and Prefix.
* Thu Dec 17 1998 Cristian Gafton <gafton@redhat.com>
- build for glibc 2.1
* Tue Jul 14 1998 Bill Kawakami <billk@home.com>
- included the four man pages stolen from Slackware
* Tue May 05 1998 Prospector System <bugs@redhat.com>
- translations modified for de, fr, tr
* Sun May 03 1998 Cristian Gafton <gafton@redhat.com>
- fixed spec file to reference/use the $RPM_BUILD_ROOT always
* Wed Dec 31 1997 Otto Hammersmith <otto@redhat.com>
- fixed where it looks for 'pr' (/usr/bin, rather than /bin)
* Fri Oct 17 1997 Donnie Barnes <djb@redhat.com>
- added BuildRoot
* Sun Sep 14 1997 Erik Troan <ewt@redhat.com>
- uses install-info
* Mon Jun 02 1997 Erik Troan <ewt@redhat.com>
- built against glibc

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.TH SDIFF 1 "22sep1993" "GNU Tools" "GNU Tools"
.SH NAME
sdiff \- find differences between two files and merge interactively
.SH SYNOPSIS
.B sdiff
.B -o
outfile [options] from-file to-file
.SH DESCRIPTION
The
.I sdiff
command merges two files and interactively outputs the
results to
.IR outfile .
If
.I from-file
is a directory and
.I to-file
is not,
.I sdiff
compares the file in
.I from-file
whose file name is that of
.IR to-file ,
and vice versa.
.I from-file
and
.I to-file
may not both be
directories.
.I sdiff
options begin with
.BR \- ,
so normally
.I from-file
and
.I to-file
may not begin with
.BR \- .
However,
.B \-\-
as an
argument by itself treats the remaining arguments as file names even if
they begin with
.BR \- .
You may not use
.B \-
as an input file.
.I sdiff
without
.B \-o
(or
.BR \-\-output )
produces a
side-by-side difference. This usage is obsolete; use
.B "diff \-\-side\-by\-side"
instead.
.SS Options
Below is a summary of all of the options that GNU
.I sdiff
accepts.
Each option has two equivalent names, one of which is a single
letter preceded by
.BR \- ,
and the other of which is a long name
preceded by
.BR \-\- .
Multiple single letter options (unless they take
an argument) can be combined into a single command line argument. Long
named options can be abbreviated to any unique prefix of their name.
.TP
.B \-a
Treat all files as text and compare them line-by-line, even if they
do not appear to be text.
.TP
.B \-b
Ignore changes in amount of white space.
.TP
.B \-B
Ignore changes that just insert or delete blank lines.
.TP
.B \-d
Change the algorithm to perhaps find a smaller set of changes. This
makes
.I sdiff
slower (sometimes much slower).
.TP
.B \-H
Use heuristics to speed handling of large files that have numerous
scattered small changes.
.TP
.B \-\-expand\-tabs
Expand tabs to spaces in the output, to preserve the alignment of tabs
in the input files.
.TP
.B \-i
Ignore changes in case; consider upper- and lower-case to be the same.
.TP
.BI "\-I " regexp
Ignore changes that just insert or delete lines that match
.IR regexp .
.TP
.B \-\-ignore\-all\-space
Ignore white space when comparing lines.
.TP
.B \-\-ignore\-blank\-lines
Ignore changes that just insert or delete blank lines.
.TP
.B \-\-ignore\-case
Ignore changes in case; consider upper- and lower-case to be the same.
.TP
.BI \-\-ignore\-matching\-lines= regexp
Ignore changes that just insert or delete lines that match
.IR regexp .
.TP
.B \-\-ignore\-space\-change
Ignore changes in amount of white space.
.TP
.B \-l
.br
.ns
.TP
.B \-\-left\-column
Print only the left column of two common lines.
.TP
.B \-\-minimal
Change the algorithm to perhaps find a smaller set of changes. This
makes
.I sdiff
slower (sometimes much slower).
.TP
.BI "\-o " file
.br
.ns
.TP
.BI \-\-output= file
Put merged output into
.IR file .
This option is required for merging.
.TP
.B \-s
.br
.ns
.TP
.B \-\-suppress\-common\-lines
Do not print common lines.
.TP
.B \-\-speed\-large\-files
Use heuristics to speed handling of large files that have numerous
scattered small changes.
.TP
.B \-t
Expand tabs to spaces in the output, to preserve the alignment of tabs
in the input files.
.TP
.B \-\-text
Treat all files as text and compare them line-by-line, even if they
do not appear to be text.
.TP
.B \-v
.br
.ns
.TP
.B \-\-version
Output the version number of
.IR sdiff .
.TP
.BI "\-w " columns
.br
.ns
.TP
.BI \-\-width= columns
Use an output width of
.IR columns .
Note that for historical reasons, this option is
.B \-W
in
.IR diff ,
.B \-w
in
.IR sdiff .
.TP
.B \-W
Ignore horizontal white space when comparing lines.
Note that for historical reasons, this option is
.B \-w
in
.IR diff ,
.B \-W
in
.IR sdiff .
.SH SEE ALSO
cmp(1), comm(1), diff(1), diff3(1).
.SH DIAGNOSTICS
An exit status of 0 means no differences were found, 1 means some
differences were found, and 2 means trouble.

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