sdiff: Linux Commands HowTo
sdiff: Merge two files interactively
Merge two files interactively. (Show differences) with output
to outfile.
SYNTAX
sdiff -o outfile [options] from-file to-file
OPTIONS
Multiple single letter options (unless they take an argument)
can be combined into a single command line argument.
-a Treat all files as text and compare them line-by-line,
even if they do not appear to be text.
-b Ignore changes in amount of white space.
-B Ignore changes that just insert or delete blank
lines.
-d Change the algorithm to perhaps find a smaller set
of changes. This makes sdiff slower (sometimes
much slower).
-H Use heuristics to speed handling of large files
that have numerous scattered small changes.
--expand-tabs
Expand tabs to spaces in the output, to preserve
the alignment of tabs in the input files.
-i Ignore changes in case; consider upper- and lower-
case to be the same.
-I regexp
Ignore changes that just insert or delete lines
that match regexp.
--ignore-all-space
Ignore white space when comparing lines.
--ignore-blank-lines
Ignore changes that just insert or delete blank
lines.
--ignore-case
Ignore changes in case; consider upper- and lower-
case to be the same.
--ignore-matching-lines=regexp
Ignore changes that just insert or delete lines
that match regexp.
--ignore-space-change
Ignore changes in amount of white space.
-l
--left-column
Print only the left column of two common lines.
--minimal
Change the algorithm to perhaps find a smaller set
of changes. This makes sdiff slower (sometimes
much slower).
-o file
--output=file
Put merged output into file. This option is
required for merging.
-s
--suppress-common-lines
Do not print common lines.
--speed-large-files
Use heuristics to speed handling of large files
that have numerous scattered small changes.
-t Expand tabs to spaces in the output, to preserve
the alignment of tabs in the input files.
--text Treat all files as text and compare them line-by-
line, even if they do not appear to be text.
-v
--version
Output the version number of sdiff.
-w columns
--width=columns
Use an output width of columns. Note that for his-
torical reasons, this option is -W in diff, -w in
sdiff.
-W Ignore horizontal white space when comparing lines.
Note that for historical reasons, this option is -w
in diff, -W in sdiff.
Long named options can be abbreviated to any unique prefix of
their name.
If from-file is a directory and to-file is not,
sdiff compares the file in from-file whose file name is that of
to-file, and vice versa. from-file and to-file may not
both be directories.
sdiff options begin with -, so normally from-file
and to-file may not begin with -. However, -- as
an argument by itself treats the remaining arguments as file names even if they
begin with -.
You may not use - as an input file.
sdiff without -o (or --output) produces a
side-by-side difference. This usage is obsolete; use diff --side-by-side
instead.
An exit status of 0 means no differences were found, 1 means some
differences were found, and 2 means trouble.
"Eventually, all things merge into one, and a river runs through it" - Norman Maclean
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