LOGINCTL(1) loginctl LOGINCTL(1) loginctl - systemd loginctl [...] {} [...] loginctl systemd-logind.service(8) systemd(1) . : list-sessions . JSON --json= -j. session-status [...] . . . . show-session . 233. show-session [...] . . . "self" loginctl. "auto" "self" . . --all . --property=. . session-status . 233. activate [] . . . . 219. lock-session [...], unlock-session [...] / . . / . 233. lock-sessions, unlock-sessions / . 188. terminate-session ... . . . 233. kill-session ... . --kill-whom= . --signal= . . 233. list-users . JSON --json= -j. user-status [...] . . . . show-user . 233. show-user [...] . . . . --all . --property=. . user-status . 233. enable-linger [...], disable-linger [...] / . . . UID . / . KillUserProcesses= logind.conf(5). 233. terminate-user ... . . . 233. kill-user ... . --signal= . . 233. list-seats . JSON --json= -j. seat-status [...] . . . . show-seat . 233. show-seat [...] . . . . --all . --property=. . seat-status . 233. attach ... . /sys/. . a-z A-Z 0-9 "-" "_" "seat". flush-devices. 233. flush-devices attach. . terminate-seat ... . . 233. : -p --property= // . . "Sessions". . --value // "=". 230. -a --all // . -l --full . 198. --kill-whom= kill-session . "leader" "all" . all . 252. -s --signal= kill-session kill-user . SIGTERM SIGINT SIGSTOP. SIGTERM . "help" "list" . -n --lines= user-status session-status . . 10 . 219. -o --output= user-status session-status . journalctl(1). "short" . 219. -H --host= . "@" . ssh ":" "/" . SSH . machinectl -H . IPv6 . -M --machine= . "@" . ".host" ( : "--user --machine=lennart@.host"). "@" (root). "@" ( ) ".host". --no-ask-password . --no-pager (pager). --no-legend . --json=MODE JSON. : "short" ( ) "pretty" ( ) "off" ( JSON ). -j --json=pretty --json=short . -h --help . --version . 0 . 1. $ loginctl user-status fatima (1005) Since: Sat 2016-04-09 14:23:31 EDT; 54min ago State: active Sessions: 5 *3 Unit: user-1005.slice user@1005.service ... session-3.scope ... session-5.scope 3473 login -- fatima 3515 -zsh Apr 09 14:40:30 laptop login[2325]: pam_unix(login:session): session opened for user fatima by LOGIN(uid=0) Apr 09 14:40:30 laptop login[2325]: LOGIN ON tty3 BY fatima 3 5. 3 . . $SYSTEMD_LOG_LEVEL ( ). . ( ) emerg alert crit err warning notice info debug 0 7. syslog(3) . console syslog kmsg journal (: SYSTEMD_LOG_LEVEL=debug,console:info debug info). . $SYSTEMD_LOG_COLOR . tty . journalctl(1) . $SYSTEMD_LOG_TIME . . journalctl(1) . $SYSTEMD_LOG_LOCATION . . . . $SYSTEMD_LOG_TID . (TID). . . $SYSTEMD_LOG_TARGET . : console ( ) console-prefixed ( "" syslog(3) kmsg ( ) journal ( ) journal-or-kmsg ( kmsg ) auto ( ) null ( ). $SYSTEMD_LOG_RATELIMIT_KMSG kmsg . . "true". systemd kmsg. $SYSTEMD_PAGER $PAGER --no-pager. $SYSTEMD_PAGER $PAGER. $SYSTEMD_PAGER $PAGER less(1) more(1) . . "cat" --no-pager. : $SYSTEMD_PAGERSECURE $SYSTEMD_PAGER $PAGER ( "cat" "") . $SYSTEMD_LESS less ( "FRSXMK"). : K Ctrl+C. less Ctrl+C . $SYSTEMD_LESS "K" less Ctrl+C . X termcap . . . $LESS less systemd. less(1) . $SYSTEMD_LESSCHARSET less ( "utf-8" UTF-8). $LESSCHARSET less systemd. $SYSTEMD_PAGERSECURE (pager) less(1) "" . sudo(8) pkexec(1) . . " " ( ). " " --no-pager PAGER=cat . . (true) " " . " " LESSSECURE=1 . less(1) " ". false (pager). SYSTEMD_PAGERSECURE=0 . $SYSTEMD_PAGERSECURE systemd " " . " " (UID) geteuid(2) sd_pid_get_owner_uid(3) sudo(8) ($SUDO_UID [1]). SYSTEMD_PAGERSECURE=1 " " . . $SYSTEMD_PAGERSECURE . $SYSTEMD_PAGER $PAGER $SYSTEMD_PAGERSECURE . $SYSTEMD_COLORS (boolean) . ( ) systemd . $COLORTERM "truecolor" "24bit" 24 256 $NO_COLOR $TERM . true $NO_COLOR. false . "16" "256" "24bit" ANSI 16 256 24 . "auto-16" "auto-256" "auto-24bit" $TERM . $SYSTEMD_URLIFY . . systemd $TERM . systemd(1) systemctl(1) systemd-logind.service(8) logind.conf(5) 1. $SUDO_UID . 3 . . : . systemd 260.1 LOGINCTL(1)