NAME
sdiff - contrast two text files by displaying them side-by-side

SYNOPSIS
sdiff [ -l ] [ -o outfile ] [ -s ] [ -w n ] filename1 filename2

DESCRIPTION
sdiff uses the output of diff to produce a side-by-side listing of
two files indicating those lines that are different. Each line of
the two files is printed with a blank gutter between them if the
lines are identical, a < in the gutter if the line only exists in
filename1, a > in the gutter if the line only exists in filename2,
and a | for lines that are different. See EXAMPLES.

OPTIONS
-w n
Use n as the width of the output line. The default line
length is 130 characters.

-l Only print the left side of any identical lines.

-s Silent. Do not print identical lines.

-o outfile
Use the next argument, output, as the name of an output file
created as an interactively controlled merging 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 with a % and waits for you to type one of the
following 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 ed(1) with the left column.

e r Call ed(1) with the right column.

e b Call ed(1) with the concatenation of left and right
columns.

e Call ed(1) with a zero length file.

On exit from ed(1), the resulting file is concatenated to
the named output file.

q Exit from the program.

EXAMPLES
A sample output of sdiff would look like this:

x | y
a a
b <
c <
d d
> c

SEE ALSO
diff(1), ed(1)