z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

Examples
algorithm can handle arbitrarily large files; however, it is not particularly
good at finding a minimal set of differences in files with many differences.
–i Ignores the case of letters when doing the comparison.
–m Produces the contents of path2 with extra formatter request lines
interspersed to show which lines were added (those with vertical bars in the
right margin) and deleted (indicated by a * in the right margin).
–M Is an IBM internal option and is not supported.
–n Is an IBM internal option and is not supported.
–N Is an IBM internal option and is not supported.
–r Compares corresponding files under the directories, and recursively
compares corresponding files under corresponding subdirectories under the
directories. You can use this option when you specify two directory names
on the command line.
–s Compares two directories, file by file, and prints messages for identical files
between the two directories.
–w Ignores white space when making the comparison.
The following example illustrates the effect of the –c option on the output of the diff
command. The following two files, price1 and price2, are compared with and
without the use of the –c option.
The contents of price1 are as follows:
Company X Price List:
$ 0.39 -- Package of Groat Clusters
$ 5.00 -- Candy Apple Sampler Pack
$ 12.00 -- Box of Crunchy Frog Chocolates
$ 15.99 -- Instant Rain (Just Add Water)
$ 20.00 -- Asparagus Firmness Meter
$ 25.00 -- Package of Seeds for 35 Herbs
$ 30.00 -- Child’s Riding Hood (Red)
$ 35.00 -- Genuine Placebos
$ 45.00 -- Case of Simulated Soy Bean Oil
$ 75.88 -- No-Name Contact Lenses
$ 99.99 -- Kiddie Destructo-Bot
$125.00 -- Emperor’s New Clothes
The contents of price2 are as follows:
Company X Price List:
$ 0.39 -- Package of Groat Clusters
$ 5.49 -- Candy Apple Sampler Pack
$ 12.00 -- Box of Crunchy Frog Chocolates
$ 15.99 -- Instant Rain (Just Add Water)
$ 17.00 -- Simulated Naugahyde cleaner
$ 20.00 -- Asparagus Firmness Meter
$ 25.00 -- Package of Seeds for 35 Herbs
$ 30.00 -- Child’s Riding Hood (Red)
$ 35.00 -- Genuine Placebos
$ 45.00 -- Case of Simulated Soy Bean Oil
$ 75.88 -- No-Name Contact Lenses
$ 99.99 -- Kiddie Destructo-Bot
The command:
diff price1 price2
diff
Chapter 2. Shell command descriptions 237