smcron(1M)
NAME
smcron - manage jobs in the crontab database
SYNOPSIS
/usr/sadm/bin/smcron subcommand [ auth_args] --
[subcommand_args]
DESCRIPTION
The smcron command manages jobs in the crontab(1) database.
subcommands
smcron subcommands are:
add Adds a job to the crontab(1) database. To add a job,
the administrator must have the solaris.jobs.user
authorization. To add a job to another user's crontab
file, the administrator must have the
solaris.jobs.admin authorization.
delete
Deletes a job from the crontab(1) database. To delete
a job, the administrator must have the
solaris.jobs.user authorization. To delete a job from
another user's crontab file, the administrator must
have the solaris.jobs.admin authorization.
list Lists one or more jobs in the crontab(1) database. To
list all jobs, the administrator must have the
solaris.jobs.user authorization. To list a job in
another user's crontab file, the administrator must
have the solaris.jobs.admin authorization. No authori-
zation is needed to list a user's own jobs.
modify
Modifies a job in the crontab(1) database. To modify a
job, the administrator must have the solaris.jobs.user
authorization. To modify a job in another user's cron-
tab file, the administrator must have the
solaris.jobs.admin authorization.
OPTIONS
The smcron authentication arguments, auth_args, are derived
from the smc(1M) arg set and are the same regardless of
which subcommand you use. The smcron command requires the
Solaris Management Console to be initialized for the command
to succeed (see smc(1M)). After rebooting the Solaris
Management Console server, the first Solaris Management Con-
sole connection might time out, so you might need to retry
the command.
The subcommand-specific options, subcommand_args, must come
after the auth_args and must be separated from them by the
-- option.
auth_args
The valid auth_args are -D, -H, -l, -p, -r, and -u; they are
all optional. If no auth_args are specified, certain
defaults will be assumed and the user may be prompted for
additional information, such as a password for authentica-
tion purposes. These letter options can also be specified by
their equivalent option words preceded by a double dash. For
example, you can use either -D or --domain with the domain
argument.
-D | --domain domain
Specifies the default domain that you want to manage.
smcron accepts only file for this option. file is also
the default value.
The file default domain means that changes are local
to the server. Toolboxes can change the domain on a
tool-by-tool basis; this option specifies the domain
for all other tools.
-H | --hostname host_name:port
Specifies the host_name and port to which you want to
connect. If you do not specify a port, the system con-
nects to the default port, 898. If you do not specify
host_name:port, the Solaris Management Console con-
nects to the local host on port 898. You may still
have to choose a toolbox to load into the console. To
override this behavior, use the smc(1M) -B option, or
set your console preferences to load a "home toolbox"
by default.
-l | --rolepassword role_password
Specifies the password for the role_name. If you
specify a role_name but do not specify a
role_password, the system prompts you to supply a
role_password. Passwords specified on the command line
can be seen by any user on the system, hence this
option is considered insecure.
-p | --password password
Specifies the password for the user_name. If you do
not specify a password, the system prompts you for
one. Passwords specified on the command line can be
seen by any user on the system, hence this option is
considered insecure.
-r | --rolename role_name
Specifies a role name for authentication. If you do
not specify this option, no role is assumed.
-u | --username user_name
Specifies the user name for authentication. If you do
not specify this option, the user identity running the
console process is assumed.
-- This option is required and must always follow the
preceding options. If you do not enter the preceding
options, you must still enter the -- option.
subcommand_args
For the time-related subcommands described below, -m, -M,
-t, and -w, you can enter multiple arguments, separated only
by commas. smcron will construct crontab entries appropriate
for your arguments. See EXAMPLES.
Note: Descriptions and other arg options that contain white
spaces must be enclosed in double quotes.
o For subcommand add:
-c command
Specifies the command that you want to run.
-h (Optional) Displays the command's usage state-
ment.
-m day_of_month
(Optional) Specifies the day of the month you
want to run the job. Valid values are 1-31. If
you specify both -t and -m options, the job exe-
cutes one day per month at the time specified by
-t.
-M month
(Optional) Specifies the month that you want to
run the job. Valid values are 1-12. If you
specify both -t and -M options, the job executes
during the specified month at the time specified
by -t.
-n name
Specifies the unique name of the job.
-o owner
(Optional) Specifies the user name that is the
owner of the job. If you do not specify this
option, the user name specified by the -U option
is assumed.
-t time_of_day
Specifies the time (in hh:mm) that you want to
execute the command. If no other time-related
options are specified (-m, -M, or -w), the job
executes every day at the time specified by -t.
If you specify both -t and -w options, the job
executes one day per week at the time specified
by -t. If you specify both -t and -m options,
the job executes one day per month at the time
specified by -t. If you specify both -t and -M
options, the job executes each day during the
specified month at the time specified by -t.
-w day_of_week
(Optional) Specifies the day of the week you
want to execute the command. Valid values are as
follows:
o 0=Sunday
o 1=Monday
o 2=Tuesday
o 3=Wednesday
o 4=Thursday
o 5=Friday
o 6=Saturday
If you specify both -t and -w options, the job
executes one day per week at the time specified
by -t.
o For subcommand delete:
-h (Optional) Displays the command's usage state-
ment.
-n name
Specifies the unique name of the job.
-o owner
(Optional) Specifies the user name that is the
owner of the job. If you do not specify this
option, the user name specified by the -U option
is assumed.
o For subcommand list:
-f n|s|v
(Optional) Specifies the format of the output.
See EXAMPLES for examples of each output type.
o n - Displays the data in native format, as
it appears in the crontab(1) database.
o s - Default format. Displays the data in
summary format.
o v - Displays the data in verbose format.
-h (Optional) Displays the command's usage state-
ment.
-o owner
(Optional) Lists all jobs for the specified
owner (user name). If you do not specify this
option, all jobs in the crontab(1) database are
listed.
o For subcommand modify:
-c command
(Optional) Specifies the command that you want
to run.
-h (Optional) Displays the command's usage state-
ment.
-m day_of_month
(Optional) Specifies the day of the month you
want to run the job. Valid values are 1-31. If
you specify both -t and -m options, the job exe-
cutes one day per month at the time specified by
-t.
-M month
(Optional) Specifies the month that you want to
run the job. Valid values are 1-12. If you
specify both -t and -M options, the job executes
during the specified month at the time specified
by -t.
-n name
Specifies the current unique name of the job.
-N new_name
(Optional) Specifies the new unique name of the
job.
-o owner
(Optional) Specifies the user name that is the
owner of the job. If you do not specify this
option, the user name specified by the -U option
is assumed.
-O new_owner
(Optional) Specifies the new owner of the job.
-t time_of_day
(Optional) Specifies the time (in hh:mm) that
you want to execute the command. If no other
time-related options are specified (-m, -M, or
-w), then the job executes every day at the time
specified by -t. If you specify both -t and -w
options, the job executes one day per week at
the time specified by -t. If you specify both -t
and -m options, the job executes one day per
month at the time specified by -t. If you
specify both -t and -M, then the job executes
each day during the specified month at the time
specified by -t.
-w day_of_week
(Optional) Specifies the day of the week you
want to execute the command. Valid values are as
follows:
o 0=Sunday
o 1=Monday
o 2=Tuesday
o 3=Wednesday
o 4=Thursday
o 5=Friday
o 6=Saturday
If you specify both -t and -w options, the job
executes one day per week at the time specified
by -t.
EXAMPLES
Example 1: Adding a Job
The following adds a new job, owned by root, that removes
the old log files from /tmp daily at 1:30 AM.
./smcron add -H myhost -u root -p mypassword -- -n "Remove old logs" \
-t 1:30 -c "rm /tmp/*.log" -o root
Example 2: Deleting a Job
The following deletes the job Remove old logs owned by root:
./smcron delete -H myhost -u root -p mypassword -- \
-n "Remove old logs" -o root
Example 3: Listing Jobs in Native Format
The following lists all jobs in native, or crontab(1), for-
mat:
./smcron list -H myhost -u root -p mypassword -- -f n
MINUTE HOUR DATE MONTH DAY COMMAND
10 3 * * * /usr/sbin/logadm
15 3 * * 0 /usr/lib/fs/nfs/nfsfind
1 2 * * * [ -x /usr/sbin/rtc ] && /usr/sbin/rtc -c > /dev/null 2>&1
30 3 * * * [ -x /usr/lib/gss/gsscred_clean ] && /usr/lib/gss/gsscred_clean
Example 4: Listing Jobs in Standard Format
The following lists all jobs owned by lp in standard format:
./smcron list -H myhost -u root -p mypassword -- -f s -o lp
NAME::OWNER::SCHEDULE::COMMAND
NoName_1765663371::lp::Weekly on Sundays at 3:13 AM::cd /var/lp/logs;
if [ -f requests ]; then if [ -f requests.1 ]; then /bin/mv requests.1
requests.2; fi; /usr/bin/cp requests requests.1; > requests; fi
NoName_512822673::lp::Weekly on Sundays at 4:15 AM::cd /var/lp/logs;
if [ -f lpsched ]; then if [ -f lpsched.1 ]; then /bin/mv lpsched.1
lpsched.2; fi; /usr/bin/cp lpsched lpsched.1; >lpsched; fi
Example 5: Listing jobs in verbose format
The following lists all jobs in verbose format:
./smcron list -H myhost -u root -p mypassword -- -f v
NAME::OWNER::SCHEDULE::NEXT_RUN::STATUS::COMMAND
NoName_1075488942::root::Advanced::::Finished on Feb 10 3:10 with code 1
::/etc/cron.d/logchecker
databackup::root::Weekly on Sundays at 3:10 AM::3/19/00 3:10 AM
::Finished on Sep 19 3:10::/usr/lib/newsyslog
runlog::root::Daily at 2:01 AM::3/14/00 2:01 AM::Finished on Feb 11
2:01 AM::/usr/sbin/rtc
Example 6: Changing a Job
The following modifies the job Remove old logs owned by root
to execute daily at 2:00 AM:
./smcron modify -H myhost -u root -p mypassword -- -n "Remove old logs" \
-o root -t 2:00
Example 7: Specifying Multiple Time Arguments
smcron allows you to specify a range of times for all of its
time-related subcommands, -m, -M, -t, and -w. For example,
the following command:
# smcron add -u root -p xxxx -- -n cronjob1 -w 1-4,5 \
-t 12:00,13:15,14:30 -c ls
...creates the following entry in crontab:
0,15,30 12,13,14 * * 1,2,3,4,6 ls #cronjob1
This job would run on Monday through Thursday and Saturday
at the following times:
12:00 12:15 12:30
13:00 13:15 13:30
14:00 14:15 14:30
ENVIRONMENT VARIABLES
See environ(5) for a description of the JAVA_HOME environ-
ment variable, which affects the execution of the smcron
command. If this environment variable is not specified, the
/usr/java location is used. See smc(1M).
EXIT STATUS
The following exit values are returned:
0 Successful completion.
1 Invalid command syntax. A usage message displays.
2 An error occurred while executing the command. An
error message displays.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWmga |
|_____________________________|_____________________________|
SEE ALSO
crontab(1), cron(1M), smc(1M), attributes(5), environ(5)
NOTES
The timezone of the cron daemon sets the system-wide
timezone for cron entries. This, in turn, is by set by
default system-wide using /etc/default/init.
If some form of daylight savings or summer/winter time is in
effect, then jobs scheduled during the switchover period
could be executed once, twice, or not at all.
Man(1) output converted with
man2html