SDIFF(1) BSD General Commands Manual SDIFF(1)
sdiff -- side-by-side diff
sdiff [-abdilstW] [-I regexp] [-o outfile] [-w width] file1 file2
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 differ-
ences. See the -o option for an explanation.
The options are:
-l Only print the left column for identical lines.
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 Choose left set of diffs.
r 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
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 Skip identical lines.
Print a maximum of width characters on each line. The default is 130 characters.
Options passed to diff(1) are:
-a Treat file1 and file2 as text files.
-b Ignore trailing blank spaces.
-d Minimize diff size.
Ignore line changes matching regexp. All lines in the change must match regexp for
the change to be ignored.
-i Do a case-insensitive comparison.
-t Expand tabs to spaces.
-W Ignore all spaces (the -w flag is passed to diff(1)).
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
TMPDIR Specifies a directory for temporary files to be created. The default is /tmp.
diff(1), diff3(1), vi(1), re_format(7)
sdiff was written from scratch for the public domain by Ray Lai <email@example.com>.
Although undocumented, sdiff supports all options supported by GNU sdiff. Some options
require GNU diff.
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.
sdiff may not work with binary data.
BSD February 21, 2007 BSD