2dd6dd357a
Can't use a variable that's not set. Change-Id: I4a7cf2ac47c2254da2fec778437f67c1fe3707f7
33 lines
722 B
Bash
Executable file
33 lines
722 B
Bash
Executable file
#!/bin/bash
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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# Debian Jessie and Debian Stretch use /bin/systemctl.
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# (/sbin/init is only available if systemd-sysv is installed.)
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if [ -f /usr/bin/systemctl -o -f /bin/systemctl ]; then
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echo "systemd"
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elif [[ -f /sbin/initctl ]]; then
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echo "upstart"
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elif [[ -f /etc/gentoo-release ]]; then
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if [[ -z GENTOO_PROFILE ]]; then
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if [[ "${GENTOO_PROFILE}" =~ systemd ]]; then
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echo "systemd"
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fi
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else
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echo "openrc"
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fi
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elif [[ -f /sbin/init ]]; then
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if [[ -f /bin/systemd ]]; then
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echo "systemd"
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else
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echo "sysv"
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fi
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else
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echo "Unknown init system"
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exit 1
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fi
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