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What command(s) do I type in the terminal to put the computer to sleep?

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up vote 4 down vote accepted

2014 update : systemctl suspend should work on all OSs using systemd.

Old version :

/etc/acpi/ or pm-suspend.

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this also works on Fedora (FC-18, FC-19): systemctl suspend – David Wilkins May 30 '14 at 18:09
I added that to the answer. – OneOfOne May 30 '14 at 18:18

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