Examples of using Crontab in English and their translations into Japanese
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Colloquial
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Ecclesiastic
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Computer
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Programming
Although cron requires that each entry in a crontab end in a newline character, neither the crontab command nor the cron daemon will detect this error.
Note in particular that if you want a PATH other than"/usr/bin:/bin", you will need to set it in the crontab file.
Shell server provides home directory for each different user, and the user can use the basic shell features and crontab to periodically execute commands, and also the execution environment for different kinds of scripts.
Note that su(1) can confuse crontab and that if you are running inside of su(1) you should always use the-u option for safety's sake.
Command output is mailed to the crontab owner( Bx cannot do this), can be mailed to a person other than the crontab owner(SysV cannot do this), or the feature can be turned off and no mail will be sent at all(SysV cannot do this either).
When this crontab is used as the root user's crontab(which is not the same as the system crontab), cron(8) assumes the string root is the first word of the command to execute, but no such command exists.
Additionally, cron checks each minute to see if its spool directory's modification time(or the modification time on/etc/crontab) has changed, and if it has, cron will then examine the modification time on all crontabs and reload those which have changed.
Those people are in luck, as every task can be scheduled on a daily, weekly, or monthly basis- or even further apart, in some cases, and specific instructions can be given to the server within the Crontab utility on how to perform the task, how to know when it's complete, and what to do when the task at hand has actually been finished.
System Crontab.
Crontab-r Remove your crontab file.
Crontab of user %1.
Crontab filename Install filename as your crontab file.
Using the crontab program on Unix.
The cron command is called crontab.
Crontab- maintain crontab files for individual users(V3).
Open the crontab file running this.
Unable to open crontab file for writing.
This removes all entries in your crontab file.
Add the following line to the crontab file.
Each user can have their own crontab file.