Examples of using Crontab in English and their translations into Chinese
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Edit crontab for current user.
The cron command is known as crontab.
Edit crontab for current user.
Each user can have their own crontab.
My crontab now looks roughly like this.
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Each user can define their own crontab.
In the system crontab, the sixth field is the name of a user for the command to run as.
The cron command is called crontab.
Let's edit the crontab to create a new job that will run the renewal command every week.
Shown below is what my current crontab looks like.
Because of the system crontab, there is usually no need to create a user crontab for root.
Each user, including the root user, has a crontab file.
This is the basic setup for every crontab file, although there is one thing different about this one.
The most commontime specification format is called"crontab.".
If you later want to remove your user crontab completely, use crontab with the-r option.
If neither file exists,only the root user can use crontab.
All base services: creation of users and groups, management of crontab files, init scripts, viewing of logs, etc.
To do this,open a terminal window and issue the command sudo crontab-e.
In a user crontab, the sixth field is the command to run, and all commands run as the user who created the crontab;
One CronJob object is like one line of a crontab(cron table) file.
But if you need to schedule a one-off task, the at command provides aquick way to create jobs without touching your crontab.
Stage 1 involves a worm and adds it to the crontab, the list of tasks run at regular intervals by the cron scheduler on Linux.
If neither of these files exists then only the superuser will be allowed to use crontab.
These files permit only specified users to perform crontab tasks such as creating, editing, displaying, and removing their own crontab files.
Important: You must not use theprocedure described here to edit/install the system crontab.
The cron daemonschedules system events according to commands found in each crontab file.
Important: You must not use theprocedure described here to edit/install the system crontab.
The cron utility also checks the/var/cron/tabs directory,in search of new crontab files.
This means that, after the Solaris software installation, all users(except the ones listed in the default cron. deny file)can access crontab.