35 lines
1.1 KiB
Groff
35 lines
1.1 KiB
Groff
.TH AT 1
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.SH NAME
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at \- execute commands at a later time
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.SH SYNOPSIS
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\fBat \fItime\fR [\fImonth day\fR] [\fIfile\fR]\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH EXAMPLES
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.EX "at 2315 Jan 31 myfile" "Myfile executed Jan 31 at 11:15 pm"
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.EX "at 0900" "Job input read from \fIstdin\fR"
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.EX "at 0711 4 29 " "Read from \fIstdin\fR, exec on April 29"
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.SH DESCRIPTION
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.PP
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\fBAt\fR prepares a file to be executed later at the specified time by
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creating a special entry in \fB/usr/spool/at\fR. The \fBcron\fR daemon
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takes care of executing these jobs. It checks to see if any
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files in \fB/usr/spool/at\fR should now be run, and if so, it runs them
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and then puts them in \fB/usr/spool/at/past\fR.
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The name of the file created in \fB/usr/spool/at\fR by \fBat\fR is
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YY.DDD.HHMM.UU (where YY, DDD, HH, and MM give the time to execute and
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UU is a unique number). Note that when the command runs, it will not be able
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to use standard input unless specifically redirected. Standard output
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will be mailed to the owner of the job.
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.SH "SEE ALSO"
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.BR cron (8).
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