Linux Commands Reference - Complete Linux Command Guide

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at

Execute command at specified time

Syntax

at [OPTION]... TIME | atq | atrm

Common Options

-f FILERead commands from file
-mSend mail on completion
-lList pending jobs (same as atq)
-d NDelete job (same as atrm)
-c NShow job content
-q QUEUESpecify queue
-vShow job execution time
now + N minutesExecute in N minutes

Common Examples

echo "backup.sh" | at 3:00 AM

Run backup at 3 AM

at now + 5 minutes

Execute in 5 minutes

at -f script.sh 10:00 PM

Read from file, run at 10 PM

atq

List pending jobs

atrm 3

Delete job 3

at -c 5

View job 5 content

echo "reboot" | at now + 1 hour

Reboot in 1 hour

at teatime

Execute at teatime (4 PM)

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