linux - I need help using the 'at' command -

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hello guys started use ubuntu , ubuntu server, i'm stuck using @ command. don't know how initiate command. i'm trying to:

i'm trying run file @ 5 using 'at" command /etc/holler.sh

thank in advance!

you should able at -

1) install at

sudo apt-get install @

2) schedule command

at 05:00 /somepathto/somecommand

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