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

Exit Values
Messages
v LC_MESSAGES
v LC_TIME
v LC_SYNTAX
v NLSPATH
See Appendix F for more information.
0 No differences between the files compared.
1 diff compared the files and found them to be different.
2 Failure due to any of the following:
v Incorrect command-line argument
v Inability to find one of the input files
v Out of memory
v Read error on one of the input files
4 At least one of the files is a binary file containing embedded NUL (\0) bytes
or newlines that are more than LINE_MAX bytes apart.
Possible error messages include:
file filename: no such file or directory
The specified filename does not exist. filename was either typed explicitly,
or generated by diff from the directory of one file argument and the
basename of the other.
Files file1 and file2 are identical
The –s option was specified and the two named files are identical.
Common subdirectories: name and name
This message appears when diff is comparing the contents of directories,
but you have not specified –r. When diff discovers two subdirectories with
the same name, it reports that the directories exist, but it does not try to
compare the contents of the two directories.
Insufficient memory (try diff –h)
diff ran out of memory for generating the data structures used in the file
differencing algorithm. (See “Limits” on page 240.) The –h option of diff can
handle any size file without running out of memory.
Internal error—cannot create temporary file
diff was unable to create a working file that it needed. Ensure that you
either have a directory /tmp or that the environment contains a variable
TMPDIR, which names a directory where diff can store temporary files.
Also, ensure that there is sufficient file space in this directory.
Missing ifdef symbol after -D
You did not specify a conditional label on the command line after the –D
option.
Only one file may be –
Of the two input files normally found on the command line of diff, only one
can be the standard input (stdin).
Too many lines in filename
A file of more than the maximum number of lines (see “Limits” on page 240)
was given to diff.
diff
Chapter 2. Shell command descriptions 239