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Use exact matches where possible, or choose the oldest process (gnome-session now has different binaries).

edited Sep 16, 2024 at 11:35

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As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" -x xfce4-session || pgrep -u "$user" -x cinnamon-session || pgrep -u "$user" -o gnome-session || pgrep -u "$user" -x gnome-shell || pgrep -u "$user" -x kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes between 22:00 and 05:59:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-23,00-05 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" cinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes between 22:00 and 05:59:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-23,00-05 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" -x xfce4-session || pgrep -u "$user" -x cinnamon-session || pgrep -u "$user" -o gnome-session || pgrep -u "$user" -x gnome-shell || pgrep -u "$user" -x kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes between 22:00 and 05:59:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-23,00-05 * * * gui-cron gnome-session-quit --power-off

fix crontab schedule

Source Link

edited Jun 19, 2017 at 15:19

swiesend

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" cinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes inbetweenbetween 22:00 and 0005:06 a clock59:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-0623,00-05 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" cinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes inbetween 22:00 and 00:06 a clock:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-06 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" cinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes between 22:00 and 05:59:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-23,00-05 * * * gui-cron gnome-session-quit --power-off

as tripleee pointed out: Cinnamon was wrong written

Source Link

edited Jun 18, 2017 at 14:29

swiesend

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, CainnamonCinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" ciannamoncinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes inbetween 22:00 and 00:06 a clock:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-06 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cainnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" ciannamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes inbetween 22:00 and 00:06 a clock:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-06 * * * gui-cron gnome-session-quit --power-off

As Pavel Selivanov points out in this article it is necessary to set DBUS_SESSION_BUS_ADDRESS and DISPLAY to enable gui related tasks from a cronjob.

He has written a shell script, which gets the DBUS_SESSION_BUS_ADDRESS for XFCE, Gnome, Unity, Cinnamon and KDE. I can confirm that is works under ubuntu:16.04.

$ sudo nano /usr/local/bin/gui-cron

#!/bin/sh [ "$#" -lt 1 ] && echo "Usage: $0 program options" && exit 1 program="$1" shift user=$(whoami) env_reference_process=$( pgrep -u "$user" xfce4-session || pgrep -u "$user" cinnamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep -z ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//') export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep -z ^DISPLAY= | sed 's/DISPLAY=//') "$program" "$@"

Then one can create a user cronjob that runs by a given schedule with the crontab syntax. Here e.g. every 15 minutes inbetween 22:00 and 00:06 a clock:

$ crontab -e

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin */15 22-06 * * * gui-cron gnome-session-quit --power-off

Source Link

answered Jun 18, 2017 at 13:35

swiesend