mirror of https://github.com/CrimsonTome/tldr.git
37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
# systemd-run
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> Run programs in transient scope units, service units, or path-, socket-, or timer-triggered service units.
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> More information: <https://www.freedesktop.org/software/systemd/man/systemd-run.html>.
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- Start a transient service:
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`sudo systemd-run {{command}} {{argument1 argument2 ...}}`
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- Start a transient service under the service manager of the current user (no privileges):
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`systemd-run --user {{command}} {{argument1 argument2 ...}}`
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- Start a transient service with a custom unit name and description:
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`sudo systemd-run --unit={{name}} --description={{string}} {{command}} {{argument1 argument2 ...}}`
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- Start a transient service that does not get cleaned up after it terminates with a custom environment variable:
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`sudo systemd-run --remain-after-exit --set-env={{name}}={{value}} {{command}} {{argument1 argument2 ...}}`
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- Start a transient timer that periodically runs its transient service (see `man systemd.time` for calendar event format):
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`sudo systemd-run --on-calendar={{calendar_event}} {{command}} {{argument1 argument2 ...}}`
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- Share the terminal with the program (allowing interactive input/output) and make sure the execution details remain after the program exits:
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`systemd-run --remain-after-exit --pty {{executable}}`
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- Set properties (e.g. CPUQuota, MemoryMax) of the process and wait until it exits:
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`systemd-run --property MemoryMax={{memory_in_bytes}} --property CPUQuota={{percentage_of_CPU_time}}% --wait {{executable}}`
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- Use the program in a shell pipeline:
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`{{executable1}} | systemd-run --pipe {{executable2}} | {{executable3}}`
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