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

cpio
Localization
Exit Values
Portability
cpio uses the following localization environment variable:
v LANG
v LC_ALL
v LC_MESSAGES
v LC_SYNTAX
v NLSPATH
See Appendix F for more information.
0 Successful completion
1 Failure due to any of the following:
v An incorrect option
v Incorrect command-line arguments
v Out of memory
v Compression error
v Failure on extraction
v Failure on creation
X/Open Portability Guide, non-Berkeley UNIX systems after Version 7.
The –q, –V, –y, and –z options are specific to the z/OS shell.
Related Information
compress, cp, dd, find, ls, mv, pax, tar, cpio, uncompress
Also see the pax file format description in Appendix H.
cron daemon — Run commands at specified dates and times
Format
Description
cron
cron is a clock daemon that runs commands at specified dates and times. You can
specify regularly scheduled commands as described in crontab. You can also
submit jobs that are to be run only once using the at command. cron runs
commands with priorities and limits set by the queuedefs file. cron uses the value
from queuedefs to lower the priority for non-UID=0 users only. The priority is
unchanged for UID=0 users.
cron only examines crontab files and at command files when initializing or when a
file changes using crontab or at. This reduces the overhead of checking for new or
changed files at regularly scheduled intervals.
The setuid bit for cron should never be set; however, it must be started by a user
with appropriate privileges to issue the setuid call for any UID. Because cron never
exits, it should only be run once, normally during the system initialization process.
cron automatically forks and runs itself in the background, in a new shell session.
cron uses the pid file to prevent more than one cron running at the same time.
168 z/OS V1R9.0 UNIX System Services Command Reference