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SDIFF(1)		     General Commands Manual			SDIFF(1)

NAME
     sdiff -- side-by-side diff

SYNOPSIS
     sdiff [-abdilstHW] [-I regexp] [-o outfile] [-w width] file1 file2

DESCRIPTION
     sdiff displays two files side by side, with any differences between the two
     highlighted  as  follows:	new lines are marked with `>'; deleted lines are
     marked with `<'; and changed lines are marked with `|'.

     sdiff can also be used to interactively merge two files, prompting at  each
     set of differences.  See the -o option for an explanation.

     The options are:

     -l --left-column
	     Only print the left column for identical lines.

     -o --output outfile
	     Interactively  merge  file1  and file2 into outfile.  In this mode,
	     the user is prompted for each set of differences.	See  EDITOR  and
	     VISUAL, below, for details of which editor, if any, is invoked.

	     The commands are as follows:

	     l | 1   Choose left set of diffs.

	     r | 2   Choose right set of diffs.

	     s	     Silent mode - identical lines are not printed.

	     v	     Verbose mode - identical lines are printed.

	     e	     Start  editing  an  empty	file,  which will be merged into
		     outfile upon exiting the editor.

	     e l     Start editing file with left set of diffs.

	     e r     Start editing file with right set of diffs.

	     e b     Start editing file with both sets of diffs.

	     q	     Quit sdiff.

     -s --suppress-common-lines
	     Skip identical lines.

     -w --width width
	     Print a maximum of width characters on each line.	The  default  is
	     130 characters.

     Options passed to diff(1) are:

     -a --text
	     Treat file1 and file2 as text files.

     -b --ignore-space-change
	     Ignore trailing blank spaces.

     -d --minimal
	     Minimize diff size.

     -I --ignore-matching-lines regexp
	     Ignore  line changes matching regexp.  All lines in the change must
	     match regexp for the change to be ignored.

     -i --ignore-case
	     Do a case-insensitive comparison.

     -t --expand-tabs
	     Expand tabs to spaces.

     -W --ignore-all-space
	     Ignore all spaces.

     -B --ignore-blank-lines
	     Ignore blank lines.

     -E --ignore-tab-expansion
	     Treat tabs and eight spaces as the same.

     -H --speed-large-files
	     Assume scattered small changes in a large file.

     --ignore-file-name-case
	     Ignore the case of file names.

     --no-ignore-file-name-case
	     Do not ignore file name case.

     --strip-trailing-cr
	     Skip identical lines.

     --tabsize NUM
	     Change the size of tabs (default is 8.)

ENVIRONMENT
     EDITOR, VISUAL
	     Specifies an editor to use with the -o option.  If both EDITOR  and
	     VISUAL  are  set,	VISUAL	takes precedence.  If neither EDITOR nor
	     VISUAL are set, the default is vi(1).

     TMPDIR  Specifies a directory for temporary files to be created.	The  de-
	     fault is /tmp.

SEE ALSO
     cmp(1), diff(1), diff3(1), vi(1), re_format(7)

AUTHORS
     sdiff   was  written  from  scratch  for  the  public  domain  by	Ray  Lai
     <ray@cyth.net>.

CAVEATS
     Tabs are treated as anywhere from one to eight characters	wide,  depending
     on  the current column.  Terminals that treat tabs as eight characters wide
     will look best.

FreeBSD ports 15.1		February 16, 2024			SDIFF(1)

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