mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
c4b4b635be
Subject: man pages for diff et al. I finally got tired of not having man pages for diff and friends, so I edited the appropriate sections of the texinfo manual into man format.
199 lines
3.8 KiB
Groff
199 lines
3.8 KiB
Groff
.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 This usage is obsolete; use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.
|