SD_BOOTED - Online Linux Manual PageSection : 3
Updated :
Source : systemd 250
Note : sd_booted

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NAMEsd_booted − Test whether the system is running the systemd init system

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SYNOPSIS#include <systemd/sd−daemon​.h>int sd_booted(void);

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DESCRIPTIONsd_booted() checks whether the system was booted up using the systemd init system​.

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RETURN VALUEOn failure, this call returns a negative errno−style error code​. If the system was booted up with systemd as init system, this call returns a positive return value, zero otherwise​.

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NOTESThese APIs are implemented as a shared library, which can be compiled and linked to with the libsystemd ​pkg-config(1) file​. Internally, this function checks whether the directory /run/systemd/system/ exists​. A simple check like this can also be implemented trivially in shell or any other language​.

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SEE ALSOsystemd(1), sd-daemon(3) 0

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