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

diff
Limits
Portability
Related Information
cmp, comm, patch
The longest input line is 1024 bytes. Except under –h, files are limited to INT_MAX
lines. INT_MAX is defined in limits.h.
POSIX.2, X/Open Portability Guide, UNIX systems.
The –D, –f, –H, –h, –i, –m, –s, and –w options, and the n argument to the –c
option, are extensions of the POSIX standard.
J. W. Hunt and M. D. McIlroy, An Algorithm for Differential File Comparison, Report
41, from Computing Science, Bell Laboratories, Murray Hill, NJ 07974, (June 1976),
9 pages.
dircmp — Compare directories
Format
Description
Options
Localization
dircmp [–d] [–s] [–wn] dir1 dir2
Note: The dircmp utility is fully supported for compatibility with older UNIX
systems. However, it is recommended that diff –r be used instead because it
may provide greater functionality and is considered the standard for portable
UNIX applications as defined by POSIX.2 IEEE standard 1003.2-1992.
dircmp examines dir1 and dir2 and generates listings about the contents of the
directories. Listings of files that are unique to each directory are generated for all
the options. If no option is entered, a list is output indicating whether the filenames
common to both directories have the same contents.
–d Compare the contents of files with the same name in both directories and
output a list telling what must be changed in the two files to bring them into
agreement. The list format is described in diff.
–s Suppress messages about identical files.
–wn Change the width of the output line to n characters. The default width is 72.
dircmp uses the following localization environment variables:
v LANG
v LC_ALL
v LC_MESSAGES
v NLSPATH
See Appendix F for more information.
240 z/OS V1R9.0 UNIX System Services Command Reference