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How can I hibernate/suspend from the command line and do so at a specific time and a relative time?

what is the equivalent of a command line like 'shutdown -h +60' but for suspend to RAM? I would like to be able to send the laptop to suspend with a time delay, but I don't know of the equivalent for it in a terminal command.

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marked as duplicate by Uri Herrera, bodhi.zazen, Jorge Castro, Oli Jan 24 '12 at 10:51

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

This is already answered on askubuntu.

Short story, something along the lines of:

sleep <time in seconds> && pmi action hibernate as root

or equivalent using at would do it.

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up vote 0 down vote accepted

The already present response has two options, in Ubuntu 11.10 you use this one:

# echo 'pm-suspend' | at now + 60 min
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