Merge two files interactively. Show the 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 --text Treat all files as text and compare them line-by- line, even if they do not appear to be text. -b --ignore-space-change Ignore changes in amount of white space. -B --ignore-blank-lines Ignore changes that just insert or delete blank lines. -d --minimal Change the algorithm to perhaps find a smaller set of changes. This makes sdiff slower (sometimes much slower). -H --speed-large-files Use heuristics to speed handling of large files that have numerous scattered small changes. -i --ignore-case 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-matching-lines=regexp Ignore changes that just insert or delete lines that match regexp. -l --left-column Print only the left column of two common lines. -o file --output=file Put merged output into file. This option is required for merging. -s --suppress-common-lines Do not print common lines. -t --expand-tabs Expand tabs to spaces in the output, to preserve the alignment of tabs in the input files. -v --version Output the version number of sdiff. -w columns --width=columns Use an output width of columns. 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 can not both be directories.
sdiff options begin with -, so normally from-file and to-file can not begin with -. However, -- as an argument by itself treats the remaining arguments as file names even if they begin with -.
You can 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 This usage is obsolete; use diff --side-by-side instead.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
cmp - Compare two files.
diff - Display the differences between two files.
diff3 - Show differences among three files.
Equivalent Windows commands: COMP / FC - Compare and display Characters/Lines which do not match.