GNU/Linux man pages
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GNU/Linux |
RedHat 9.0(Shrike) |
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sdiff(1) |
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sdiff − find differences between two files and merge interactively
sdiff -o outfile [options] from-file to-file
The sdiff command merges two files and interactively outputs the results to outfile.
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 This usage is obsolete; use diff −−side−by−side instead.
Options
Below is a summary of all of the options that GNU
sdiff accepts. Each option has two equivalent names,
one of which is a single letter preceded by −,
and the other of which is a long name preceded by
−−. 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.
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−a |
Treat all files as text and compare them line-by-line, even if they do not appear to be text. | ||
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−b |
Ignore changes in amount of white space. | ||
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−B |
Ignore changes that just insert or delete blank lines. | ||
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−d |
Change the algorithm to perhaps find a smaller set of changes. This makes sdiff slower (sometimes much slower). | ||
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−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.
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−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.
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−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.
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−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.
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−t |
Expand tabs to spaces in the output, to preserve the alignment of tabs in the input files. | ||
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−−text |
Treat all files as text and compare them line-by-line, even if they do not appear to be text. | ||
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−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.
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−W |
Ignore horizontal white space when comparing lines. Note that for historical reasons, this option is −w in diff, −W in sdiff. |
cmp(1), comm(1), diff(1), diff3(1).
An exit status of 0 means no differences were found, 1 means some differences were found, and 2 means trouble.
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sdiff(1) | |