mirror of https://github.com/CrimsonTome/tldr.git
29 lines
797 B
Markdown
29 lines
797 B
Markdown
# rtcwake
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> Enter a system sleep state until specified wakeup time relative to your BIOS clock.
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> More information: <https://manned.org/rtcwake>.
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- Show whether an alarm is set or not:
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`sudo rtcwake -m show -v`
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- Suspend to RAM and wakeup after 10 seconds:
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`sudo rtcwake -m mem -s {{10}}`
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- Suspend to disk (higher power saving) and wakeup 15 minutes later:
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`sudo rtcwake -m disk --date +{{15}}min`
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- Freeze the system (more efficient than suspend-to-RAM but version 3.9 or newer of the Linux kernel is required) and wakeup at a given date and time:
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`sudo rtcwake -m freeze --date {{YYYYMMDDhhmm}}`
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- Disable a previously set alarm:
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`sudo rtcwake -m disable`
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- Perform a dry run to wakeup the computer at a given time. (Press Ctrl + C to abort):
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`sudo rtcwake -m on --date {{hh:ss}}`
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