Как узнать, какое приложение или какая команда была выдана для выхода пользователя из системы?

Я хотел бы найти файл журнала, в котором хранится, какое приложение или какая команда была выдана для выхода пользователя.

У меня есть система Ubuntu 18.04, которая ведет себя странно. . Он выходит из системы, пока я выполняю работу. Я хотел бы исправить эту проблему.

Система использует это ядро ​​ 5.4.0-42-generic # 46 ~ 18.04.1-Ubuntu .

Обновление:

Я нашел группа сообщений об ошибках с использованием этой команды cat /var/log/syslog.1 | grep ОШИБКА . Не уверен, что это связано с моей проблемой.

Aug 16 19:53:53 Machine org.gnome.Shell.desktop[2451]: mutter:ERROR:core/window.c:5332:get_default_window_icon: assertion failed: (default_icon)
Aug 16 19:54:07 Machine whoopsie-upload-all[9276]: ERROR: processing /var/crash/_usr_bin_gnome-shell.1000.crash: Compressed file ended before the end-of-stream marker was reached
Aug 16 19:54:27 Machine gnome-shell[11079]: JS ERROR: Could not load extension ubuntu-dock@ubuntu.com.bak: Error: uuid "ubuntu-dock@ubuntu.com" from metadata.json does not match directory name "ubuntu-dock@ubuntu.com.bak"#012createExtensionObject@resource:///org/gnome/shell/misc/extensionUtils.js:135:15#012_loadExtension@resource:///org/gnome/shell/misc/extensionUtils.js:186:25#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012scanExtensions/<@resource:///org/gnome/shell/misc/extensionUtils.js:197:13#012collectFromDatadirs@resource:///org/gnome/shell/misc/fileUtils.js:27:17#012scanExtensions@resource:///org/gnome/shell/misc/extensionUtils.js:196:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_loadExtensions@resource:///org/gnome/shell/ui/extensionSystem.js:330:5#012enableAllExtensions@resource:///org/gnome/shell/ui/extensionSystem.js:338:9#012_sessionUpdated@resource:///org/gnome/shell/ui/extensionSystem.js:369:9#012init@resource:///org/gnome/shell/ui/extensionSystem.js:377:5#012_initializeUI@resource:///org/gnome/shell/ui/main.js:229:5#012start@resource:///org/gnome/shell/ui/main.js:133:5#012@<main>:1:31
Aug 16 19:54:27 Machine org.gnome.Shell.desktop[11079]: mutter:ERROR:core/window.c:5332:get_default_window_icon: assertion failed: (default_icon)
Aug 16 19:54:40 Machine whoopsie-upload-all[11118]: ERROR: processing /var/crash/_usr_bin_gnome-shell.1000.crash: Compressed file ended before the end-of-stream marker was reached
Aug 16 19:54:47 Machine chromium-browser.desktop[27638]: [27638:27638:0816/195447.653920:ERROR:chrome_browser_main_extra_parts_x11.cc(63)] X IO error received (X server probably went away)
Aug 16 19:54:47 Machine chromium-browser.desktop[27638]: [27671:27671:0816/195447.659608:ERROR:x11_util.cc(112)] X IO error received (X server probably went away)
Binary file (standard input) matches

Я также запускал cat /var/log/syslog.1 | grep gnome-shell , чтобы просмотреть сообщения оболочки gnome за тот же период времени. См. Ниже.

Aug 16 19:53:53 Machine gnome-shell[2451]: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed
Aug 16 19:54:07 Machine whoopsie-upload-all[9276]: ERROR: processing /var/crash/_usr_bin_gnome-shell.1000.crash: Compressed file ended before the end-of-stream marker was reached
Aug 16 19:54:07 Machine whoopsie-upload-all[9276]: Collecting info for /var/crash/_usr_bin_gnome-shell.1000.crash...
Aug 16 19:54:27 Machine dbus-daemon[1403]: [system] Activating via systemd: service name='org.freedesktop.GeoClue2' unit='geoclue.service' requested by ':1.30034' (uid=1000 pid=11079 comm="/usr/bin/gnome-shell " label="unconfined")
Aug 16 19:54:27 Machine gnome-shell[11079]: Telepathy is not available, chat integration will be disabled.
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'ScreencastIface' on the module 'screencast'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: JS WARNING: [~/.local/share/gnome-shell/extensions/EasyScreenCast@iacopodeenosee.gmail.com/extension.js 943]: reference to undefined property "MESSAGE_TRAY"
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'SoundDeviceChooserBase' on the module 'base'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'SETTINGS_SCHEMA' on the module 'prefs'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: JS WARNING: [~/.local/share/gnome-shell/extensions/sound-output-device-chooser@kgshank.net/convenience.js 200]: reference to undefined property Symbol.toPrimitive
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'SHOW_INPUT_SLIDER' on the module 'prefs'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: [Dynamic Panel Transparency] Using theme data for: Sierra-light
Aug 16 19:54:27 Machine gnome-shell[11079]: loading user theme: /usr/share//themes/Sierra-light/gnome-shell/gnome-shell.css
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'NetSpeed' on the module 'net_speed'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'NetSpeedStatusIcon' on the module 'net_speed_status_icon'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: Some code accessed the property 'LayoutMenuItem' on the module 'layout_menu_item'. That property was defined with 'let' or 'const' inside the module. This was previously supported, but is not correct according to the ES6 standard. Any symbols to be exported from a module must be defined with 'var'. The property access will work as previously for the time being, but please fix your code anyway.
Aug 16 19:54:27 Machine gnome-shell[11079]: JS WARNING: [~/.local/share/gnome-shell/extensions/netspeed@hedayaty.gmail.com/net_speed_status_icon.js 157]: assignment to undeclared variable device
Aug 16 19:54:27 Machine gnome-shell[11079]: Device -> 
Aug 16 19:54:27 Machine gnome-shell[11079]: JS ERROR: Could not load extension ubuntu-dock@ubuntu.com.bak: Error: uuid "ubuntu-dock@ubuntu.com" from metadata.json does not match directory name "ubuntu-dock@ubuntu.com.bak"#012createExtensionObject@resource:///org/gnome/shell/misc/extensionUtils.js:135:15#012_loadExtension@resource:///org/gnome/shell/misc/extensionUtils.js:186:25#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012scanExtensions/<@resource:///org/gnome/shell/misc/extensionUtils.js:197:13#012collectFromDatadirs@resource:///org/gnome/shell/misc/fileUtils.js:27:17#012scanExtensions@resource:///org/gnome/shell/misc/extensionUtils.js:196:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_loadExtensions@resource:///org/gnome/shell/ui/extensionSystem.js:330:5#012enableAllExtensions@resource:///org/gnome/shell/ui/extensionSystem.js:338:9#012_sessionUpdated@resource:///org/gnome/shell/ui/extensionSystem.js:369:9#012init@resource:///org/gnome/shell/ui/extensionSystem.js:377:5#012_initializeUI@resource:///org/gnome/shell/ui/main.js:229:5#012start@resource:///org/gnome/shell/ui/main.js:133:5#012@<main>:1:31
Aug 16 19:54:27 Machine gnome-shell[11079]: Extension dash-to-dock@micxgx.gmail.com already installed in ~/.local/share/gnome-shell/extensions/dash-to-dock@micxgx.gmail.com. /usr/share/gnome-shell/extensions/dash-to-dock@micxgx.gmail.com will not be loaded
Aug 16 19:54:27 Machine gnome-shell[11079]: Extension drive-menu@gnome-shell-extensions.gcampax.github.com already installed in ~/.local/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com will not be loaded
Aug 16 19:54:27 Machine gnome-shell[11079]: Extension user-theme@gnome-shell-extensions.gcampax.github.com already installed in ~/.local/share/gnome-shell/extensions/user-theme@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/user-theme@gnome-shell-extensions.gcampax.github.com will not be loaded
Aug 16 19:54:27 Machine gnome-shell[11079]: Extension workspace-indicator@gnome-shell-extensions.gcampax.github.com already installed in ~/.local/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com will not be loaded
Aug 16 19:54:27 Machine gnome-shell[11079]: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed

Помимо всех сообщений, относящихся к свойству , я заметил

Machine gnome-shell [11079]: загрузка пользовательской темы: /usr/share//themes/Sierra-light/gnome-shell/gnome-shell.css

Путь к каталогу неверен. Я не знаю, является ли это причиной проблемы. Тема действительно работает. Но правильный путь должен быть /usr/share/themes/Sierra-light/gnome-shell/gnome-shell.css . Как мне это исправить?