晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/usr/lib/systemd/
Upload File :
Current File : //usr/lib/systemd/systemd-update-helper
#!/usr/bin/bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eu
set -o pipefail

command="${1:?}"
shift

command -v systemctl >/dev/null || exit 0

case "$command" in
    install-system-units)
        systemctl --no-reload preset "$@"
        ;;

    install-user-units)
        systemctl --no-reload preset --global "$@"
        ;;

    remove-system-units)
        if [ -d /run/systemd/system ]; then
            systemctl --no-reload disable --now --no-warn "$@"
        else
            systemctl --no-reload disable --no-warn "$@"
        fi
        ;;

    remove-user-units)
        systemctl --global disable --no-warn "$@"

        [ -d /run/systemd/system ] || exit 0

        users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
        for user in $users; do
            SYSTEMD_BUS_TIMEOUT=15s \
                    systemctl --user -M "$user@" disable --now --no-warn "$@" &
        done
        wait
        ;;

    mark-restart-system-units)
        [ -d /run/systemd/system ] || exit 0

        for unit in "$@"; do
            systemctl set-property "$unit" Markers=+needs-restart &
        done
        wait
        ;;

    mark-reload-system-units)
        [ -d /run/systemd/system ] || exit 0

        for unit in "$@"; do
            systemctl set-property "$unit" Markers=+needs-reload &
        done
        wait
        ;;

    mark-restart-user-units)
        [ -d /run/systemd/system ] || exit 0

        users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
        for user in $users; do
            for unit in "$@"; do
                SYSTEMD_BUS_TIMEOUT=15s \
                        systemctl --user -M "$user@" set-property "$unit" Markers=+needs-restart &
            done
        done
        wait
        ;;

    mark-reload-user-units)
        [ -d /run/systemd/system ] || exit 0

        users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
        for user in $users; do
            for unit in "$@"; do
                SYSTEMD_BUS_TIMEOUT=15s \
                        systemctl --user -M "$user@" set-property "$unit" Markers=+needs-reload &
            done
        done
        wait
        ;;

    system-reload-restart|system-reload|system-restart)
        if [ -n "$*" ]; then
            echo "Unexpected arguments for '$command': $*"
            exit 2
        fi

        [ -d /run/systemd/system ] || exit 0

        if [[ "$command" =~ reload ]]; then
            systemctl daemon-reload
        fi

        if [[ "$command" =~ restart ]]; then
            systemctl reload-or-restart --marked
        fi
        ;;

    user-reload-restart|user-reload|user-restart|user-reexec)
        if [ -n "$*" ]; then
            echo "Unexpected arguments for '$command': $*"
            exit 2
        fi

        [ -d /run/systemd/system ] || exit 0

        users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')

        if [[ "$command" =~ reexec ]]; then
            for user in $users; do
                SYSTEMD_BUS_TIMEOUT=15s \
                        systemctl --user -M "$user@" daemon-reexec &
            done
            wait
        fi

        if [[ "$command" =~ reload ]]; then
            for user in $users; do
                SYSTEMD_BUS_TIMEOUT=15s \
                        systemctl --user -M "$user@" daemon-reload &
            done
            wait
        fi

        if [[ "$command" =~ restart ]]; then
            for user in $users; do
                SYSTEMD_BUS_TIMEOUT=15s \
                        systemctl --user -M "$user@" reload-or-restart --marked &
            done
            wait
        fi
        ;;

    *)
        echo "Unknown verb '$command'"
        exit 3
        ;;
esac