LOGGER(1) LOGGER(1) logger - logger [] logger . , . , -f , . -d, --udp (UDP) . /etc/services, 514. --server --socket . -e, --skip-empty . . . --prio-prefix, . , (. <13>). -f, --file . . -i logger . --id[=] logger . , - logger. --id=$$ (PPID) . ( systemd /dev/log) . logger(1) , -, . --journald[=] systemd-. , , . journald-; systemd.journal-fields(7) . ,,_" , . : logger --journald <_=67feb6ffbaf24c5cbec13c008dd72309 = , . = = end logger --journald=.txt --journald , . , . journalctl(1) . journalctl --output json-pretty . , . , . --msgid - ,,RFC 5424 MSGID". msgid. --rfc5424 ; , . -n, --server . --udp --tcp, logger UDP, TCP . --no-act . --stderr . --octet-count ,,RFC 6587 " . , UDP-, RFC6587 ( ) TCP-. -P, --port . , syslog ,,udp" syslog-conn ,,tcp" . -p, --priority . .. , -p local3.info ,,local3*. user.notice. --prio-prefix . . 8 . , local0.info, =16 =6, <134>. , -p. , , -p. . --rfc3164 RFC 3164 BSD . --rfc5424[=] ,,RFC 5424 . : notq, notime, nohost. notq . . --sd-id timeQuality . notime ( notq) ISO-8601 , . nohost gethostname(2) . RFC 5424 logger 2.26. -s, --stderr . --sd-id name[@] RFC 5424 . --sd-param . . ( @) . . @ - . logger timeQuality . RFC 5424 ( ip, enterpriseId, software swVersion) ( sequenceId, sysUpTime language). - @. --sd-param = , . --sd-id . . logger --rfc5424 --sd-id @123 \ --sd-param ="" \ --sd-param ="" \ --sd-id @123 \ --sd-param ="" \ " " : <13>1 2015-10-01T14:07:59.168662+02:00 ws kzak - - [timeQuality tzKnown="1" isSynced="1" syncAccuracy="218616"][@123 ="" =""][@123 =""] -S, --size . 1KiB , RFC 3164. RFC 5424, . RFC 5424 4KiB . 1KiB . , --size logger- ( --rfc5424). : , . . , 50 80 . , , . , 2 4 KiB , . --socket-errors . on, off auto. auto (), logger systemd(1), , /dev/log . /dev/log , openlog(3) . logger(1) 2.26 openlog(3), . , logger(1)-. -T, --tcp (TCP). syslog-conn /etc/services, 601. --server --socket . -t, --tag . ( - ). -u, --socket . -- . (-). -h, --help . -V, --version . logger 0 , >0 . : auth + authpriv + cron daemon + ftp + kern , user lpr mail news syslog user uucp local0 to local7 security auth : emerg alert crit err warning notice info debug panic emerg error err warn warning , syslog(3). logger IEEE Std 1003.2 ("POSIX.2"). logger -p local0.notice -t HOSTIDM -f /dev/idmc logger -n loghost.example.com System rebooted logger 1983-1993. Karel Zak , Rainer Gerhards , Sami Kerola . journalctl(1), syslog(3), systemd.journal-fields(7) , ,,https://github.com/util-linux/util-linux/issues[issue tracker]". logger ,,util-linux" . util-linux 2.41.2 2025-09-22 LOGGER(1)