SDIFF(1) User Commands SDIFF(1)
NAME
sdiff - print differences between two files side-by-side
SYNOPSIS
sdiff [
-l] [
-s] [
-o output] [
-w n]
filename1 filename2DESCRIPTION
sdiff uses the output of the
diff command to produce a side-by-side
listing of two files indicating lines that are different. Lines of
the two files are printed with a blank gutter between them if the
lines are identical, a
< in the gutter if the line appears only in
filename1, a
> in the gutter if the line appears only in
filename2,
and a
| for lines that are different. (See the
EXAMPLES section
below.)
OPTIONS
-l Print only the left side of any lines that are
identical.
-s Do not print identical lines.
-o output Use the argument
output as the name of a third file
that is created as a user-controlled merge of
filename1 and
filename2. Identical lines of
filename1 and
filename2 are copied to
output. Sets of differences, as
produced by
diff, are printed; where a set of
differences share a common gutter character. After
printing each set of differences,
sdiff prompts the
user with a
% and waits for one of the following user-
typed commands:
l Append the left column to the output file.
r Append the right column to the output file.
s Turn on silent mode; do not print identical
lines.
v Turn off silent mode.
e l Call the editor with the left column.
e r Call the editor with the right column.
e b Call the editor with the concatenation of left
and right.
e Call the editor with a zero length file.
q Exit from the program.
On exit from the editor, the resulting file is
concatenated to the end of the
output file.
-w n Use the argument
n as the width of the output line. The
default line length is 130 characters.
USAGE
See
largefile(7) for the description of the behavior of
sdiff when
encountering files greater than or equal to 2 Gbyte (2^31 bytes).
EXAMPLES
Example 1: An example of the sdiff command.
A sample output of
sdiff follows.
x | y
a a
b <
c <
d d
> c
ENVIRONMENT VARIABLES
If any of the
LC_* variables (
LC_CTYPE,
LC_MESSAGES,
LC_TIME,
LC_COLLATE,
LC_NUMERIC, and
LC_MONETARY) (see
environ(7)) are not set
in the environment, the operational behavior of
sdiff for each
corresponding locale category is determined by the value of the
LANG environment variable. If
LC_ALL is set, its contents are used to
override both the
LANG and the other
LC_* variables. If none of the
above variables is set in the environment, the "C" locale determines
how
sdiff behaves.
LC_CTYPE Determines how
sdiff handles characters. When
LC_CTYPE is set to a valid value,
sdiff can display and handle
text and filenames containing valid characters for that
locale.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|CSI | Enabled |
+---------------+-----------------+
SEE ALSO
diff(1),
ed(1),
attributes(7),
environ(7),
largefile(7) February 17, 2023 SDIFF(1)
