sdiff(1) [osf1 man page]
sdiff(1) General Commands Manual sdiff(1) NAME
sdiff - Compares two files and displays the differences in a side-by-side format SYNOPSIS
sdiff [-l | -s] [-w number] [-o output_file] file1 file2 The sdiff command reads file1 and file2, uses diff to compare them, and writes the results to standard output in a side-by-side format. OPTIONS
Displays only the left side when lines are identical. Creates a third file, output_file, by a controlled interactive line-by-line merging of file1 and file2. The following subcommands govern the creation of this file: Adds the left side to output_file. Adds the right side to output_file. Stops displaying identical lines. Begins displaying identical lines. Enters ed with the left side, the right side, both sides, or an empty file, respectively. Each time you exit from ed, sdiff writes the resulting edited file to the end of output_file. If you fail to save the changes before exiting, sdiff writes the initial input to output_file. Exits the interactive session. Suppresses display of identical lines. Sets the width of the output line to number (130 characters by default). DESCRIPTION
The sdiff command displays each line of the two files with a series of spaces between them if the lines are identical, a < (left angle bracket) in the field of spaces if the line only exists in file1, a > (right angle bracket) if the line only exists in file2, and a | (ver- tical bar) for lines that are different. When you specify the -o option, sdiff produces a third file by merging file1 and file2 according to your instructions. Note that the sdiff command invokes the diff -b command to compare two input files. The -b option causes the diff command to ignore trail- ing spaces, tab characters, and consider other strings of spaces as equal. EXAMPLES
To print a comparison of two files, enter: sdiff chap1.bak chap1 This displays a side-by-side listing that compares each line of chap1.bak and chap1. To display only the lines that differ, enter: sdiff -s -w 80 chap1.bak chap1 This displays the differences at the tty. The -w 80 sets page width to 80 columns. The -s option tells sdiff not to display lines that are identical in both files. To selectively combine parts of two files, enter: sdiff -s -w 80 -o chap1.combo chap1.bak chap1 This combines chap1.bak and chap1 into a new file called chap1.combo. For each group of differing lines, sdiff asks you which group to keep or whether you want to edit them using ed. SEE ALSO
Commands: diff(1), ed(1) sdiff(1)
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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 filename2 DESCRIPTION
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.to -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(5) 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(5)) are not set in the environment, the operational behavior of sdiff for each corresponding locale category is determined by the value of the LANG environ- ment 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 vari- ables 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 file- names containing valid characters for that locale. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------------------------------------+ |ATTRIBUTE TYPE ATTRIBUTE VALUE | |Availability SUNWesu | |CSI Enabled | +-----------------------------------------------------------+ SEE ALSO
diff(1), ed(1), attributes(5), environ(5), largefile(5) SunOS 5.11 20 Dec 1996 sdiff(1)