What is the At Command?:
At Command Syntax:
at [\\computername] hh:mm [/every:date[,...] | /next:date[,...]] [/interactive] [id] [/delete [/yes]] "command" [/?]
\\computername = Use this option to specify a remote computer name. The at command will schedule the running of command on the local computer if you don't specify a computername.
hh:mm = Specifies the time the command should be run in hour:minute format.
/every:date[,...] = Use the /every switch to run command on specific days of the week or month.
/next:date[,...] = Use the /next switch to run command on the next occurrence of the day.
/interactive = Allows the scheduled command to interact with whatever user is logged in when the job is run.
id = This is the unique number assigned to an already scheduled command. The id option is only used for displaying or deleting a particular scheduled command. You can not manually set an id to a scheduled command.
/delete [/yes] = This at command option is used to delete all previously scheduled commands. Use the /yes option with /delete to skip the "delete all scheduled jobs" confirmation question. Use /delete when specifying an id to delete a single scheduled command.
command = This specifies the command or program to run. You must enclose command in double-quotes.
/? = Use the help switch with the at command to show detailed help about the command's several options.
Tip: You can save any output from the at command to a file using a redirection operator with the command. See How To Redirect Command Output to a File for help or see Command Prompt Tricks for more tips.
At Command Examples:
at 14:15 "chkdsk /f"
In the above example, the at command is used to schedule a run of the chkdsk command as chkdsk /f today only, at 2:15 pm, on the currently used PC.
at \\prodserver 23:45 /every:1,4,8,12,16,20,24,28 "bkprtn.bat"
In this example, the at command is used to schedule the execution of the bkprtn.bat batch file on computer named prodserver at 11:45pm on the 1st, 4th, 8th, 12th, etc. day of each month.
at 1 /delete
Here, the scheduled command with the id of 1 is deleted.
At Command Availability:
Note: The availability of at command switches may differ somewhat from operating system to operating system.
At Related Commands:
The at command is often used with many other Command Prompt commands due to the fact that it's used to schedule the running of other commands.