AT command
The AT command is a single-work dispatch command. The AT command is very simple, but very powerful at a given time.
Grammar
time > command to execute CTRL+d
Options
-m: When the specified task is completed, the user will be sent a message, even if there is no standard output
-V: Shows the time that the task will be executed -l:at-L is equivalent to ATQ, which lists all the users on the current system work schedule -d:at-D equals ATRM, deletes an at job schedule
-C: Lists the actual command content for the job
-F: Specifies the task file containing the specific instructions;-Q: Specifies the queue name of the new task;-L: Displays a list of pending tasks;-D: Deletes the specified pending task;-M: Sends an e-mail message to the user after the task executes.
From: Http://man.linuxde.net/at
Time format
hh:mm at hh:mm YYYY-mm-DD at:5- - hh:mm [am|pm] [Month] [date
hh:mm [AM|PM] + number [minutes|hours|days|weeks|today| Tomorrow] at5 minutes
Related commands
The AT command is used to execute commands at a specified time. At allows you to use a fairly complex set of time-specific methods. It is able to accept the time specified in the hh:mm (hour: minute) of the day. If the time has passed, then it will be executed the next day. Of course, you can use Midnight (late night), noon (noon), Teatime (tea time, usually 4 o'clock in the afternoon) and other vague words to specify the time. The user is also able to use the 12-hour timekeeping system, which is either a AM (morning) or PM (afternoon) After the time to indicate whether it is morning or afternoon. You can also specify a specific date for the execution of the command, specifying the format for Month Day (month) or mm/dd/yy (Month/day/year) or Dd.mm.yy (day, month, year). The specified date must be followed by the specified time. The absolute timing method is described above, and the relative timing method can be used, which is good for arranging orders that will be executed soon. The specified format is: Now + Count Time-units,now is the current time, Time-units is the time unit, here can be minutes (minutes), hours (hours), Days (day), Weeks (week). Count is the amount of time, whether it is a few days, or a few hours, and so on. A more timed method is to specify the time to complete the command directly using today, tomorrow (tomorrow).
From: The Http://man.linuxde.net/atat command is used to execute a command at a specified time. At allows you to use a fairly complex set of time-specific methods. It is able to accept the time specified in the hh:mm (hour: minute) of the day. If the time has passed, then it will be executed the next day. Of course, you can use Midnight (late night), noon (noon), Teatime (tea time, usually 4 o'clock in the afternoon) and other vague words to specify the time. The user is also able to use the 12-hour timekeeping system, which is either a AM (morning) or PM (afternoon) After the time to indicate whether it is morning or afternoon. You can also specify a specific date for the execution of the command, specifying the format for Month Day (month) or mm/dd/yy (Month/day/year) or Dd.mm.yy (day, month, year). The specified date must be followed by the specified time. The absolute timing method is described above, and the relative timing method can be used, which is good for arranging orders that will be executed soon. The specified format is: Now + Count Time-units,now is the current time, Time-units is the time unit, here can be minutes (minutes), hours (hours), Days (day), Weeks (week). Count is the amount of time, whether it is a few days, or a few hours, and so on. A more timed method is to specify the time to complete the command directly using today, tomorrow (tomorrow).
From: The Http://man.linuxde.net/atat command is used to execute a command at a specified time. At allows you to use a fairly complex set of time-specific methods. It is able to accept the time specified in the hh:mm (hour: minute) of the day. If the time has passed, then it will be executed the next day. Of course, you can use Midnight (late night), noon (noon), Teatime (tea time, usually 4 o'clock in the afternoon) and other vague words to specify the time. The user is also able to use the 12-hour timekeeping system, which is either a AM (morning) or PM (afternoon) After the time to indicate whether it is morning or afternoon. You can also specify a specific date for the execution of the command, specifying the format for Month Day (month) or mm/dd/yy (Month/day/year) or Dd.mm.yy (day, month, year). The specified date must be followed by the specified time. The absolute timing method is described above, and the relative timing method can be used, which is good for arranging orders that will be executed soon. The specified format is: Now + Count Time-units,now is the current time, Time-units is the time unit, here can be minutes (minutes), hours (hours), Days (day), Weeks (week). Count is the amount of time, whether it is a few days, or a few hours, and so on. A more timed method is to specify the time to complete the command directly using today, tomorrow (tomorrow).
From: The Http://man.linuxde.net/atat command is used to execute a command at a specified time. At allows you to use a fairly complex set of time-specific methods. It is able to accept the time specified in the hh:mm (hour: minute) of the day. If the time has passed, then it will be executed the next day. Of course, you can use Midnight (late night), noon (noon), Teatime (tea time, usually 4 o'clock in the afternoon) and other vague words to specify the time. The user is also able to use the 12-hour timekeeping system, which is either a AM (morning) or PM (afternoon) After the time to indicate whether it is morning or afternoon. You can also specify a specific date for the execution of the command, specifying the format for Month Day (month) or mm/dd/yy (Month/day/year) or Dd.mm.yy (day, month, year). The specified date must be followed by the specified time. The absolute timing method is described above, and the relative timing method can be used, which is good for arranging orders that will be executed soon. The specified format is: Now + Count Time-units,now is the current time, Time-units is the time unit, here can be minutes (minutes), hours (hours), Days (day), Weeks (week). Count is the amount of time, whether it is a few days, or a few hours, and so on. A more timed method is to specify the time to complete the command directly using today, tomorrow (tomorrow).
From: The Http://man.linuxde.net/atat command is used to execute a command at a specified time. At allows you to use a fairly complex set of time-specific methods. It is able to accept the time specified in the hh:mm (hour: minute) of the day. If the time has passed, then it will be executed the next day. Of course, you can use Midnight (late night), noon (noon), Teatime (tea time, usually 4 o'clock in the afternoon) and other vague words to specify the time. The user is also able to use the 12-hour timekeeping system, which is either a AM (morning) or PM (afternoon) After the time to indicate whether it is morning or afternoon. You can also specify a specific date for the execution of the command, specifying the format for Month Day (month) or mm/dd/yy (Month/day/year) or Dd.mm.yy (day, month, year). The specified date must be followed by the specified time. The absolute timing method is described above, and the relative timing method can be used, which is good for arranging orders that will be executed soon. The specified format is: Now + Count Time-units,now is the current time, Time-units is the time unit, here can be minutes (minutes), hours (hours), Days (day), Weeks (week). Count is the amount of time, whether it is a few days, or a few hours, and so on. A more timed method is to specify the time to complete the command directly using today, tomorrow (tomorrow).
From: Http://man.linuxde.net/at
Linux:at command Explanation
