Revert "nixos/doc: re-format"
This reverts commit ea6e8775bd. The new
format is not an improvement.
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@@ -5,11 +5,18 @@
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xml:id="sec-logging">
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<title>Logging</title>
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<para>
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System-wide logging is provided by systemd’s <emphasis>journal</emphasis>, which subsumes traditional logging daemons such as syslogd and klogd. Log entries are kept in binary files in <filename>/var/log/journal/</filename>. The command <literal>journalctl</literal> allows you to see the contents of the journal. For example,
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System-wide logging is provided by systemd’s <emphasis>journal</emphasis>,
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which subsumes traditional logging daemons such as syslogd and klogd. Log
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entries are kept in binary files in <filename>/var/log/journal/</filename>.
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The command <literal>journalctl</literal> allows you to see the contents of
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the journal. For example,
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<screen>
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<prompt>$ </prompt>journalctl -b
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</screen>
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shows all journal entries since the last reboot. (The output of <command>journalctl</command> is piped into <command>less</command> by default.) You can use various options and match operators to restrict output to messages of interest. For instance, to get all messages from PostgreSQL:
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shows all journal entries since the last reboot. (The output of
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<command>journalctl</command> is piped into <command>less</command> by
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default.) You can use various options and match operators to restrict output
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to messages of interest. For instance, to get all messages from PostgreSQL:
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<screen>
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<prompt>$ </prompt>journalctl -u postgresql.service
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-- Logs begin at Mon, 2013-01-07 13:28:01 CET, end at Tue, 2013-01-08 01:09:57 CET. --
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@@ -19,7 +26,8 @@ Jan 07 15:44:14 hagbard postgres[2681]: [2-1] LOG: database system is shut down
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Jan 07 15:45:10 hagbard postgres[2532]: [1-1] LOG: database system was shut down at 2013-01-07 15:44:14 CET
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Jan 07 15:45:13 hagbard postgres[2500]: [1-1] LOG: database system is ready to accept connections
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</screen>
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Or to get all messages since the last reboot that have at least a “critical” severity level:
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Or to get all messages since the last reboot that have at least a
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“critical” severity level:
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<screen>
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<prompt>$ </prompt>journalctl -b -p crit
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Dec 17 21:08:06 mandark sudo[3673]: pam_unix(sudo:auth): auth could not identify password for [alice]
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@@ -27,6 +35,9 @@ Dec 29 01:30:22 mandark kernel[6131]: [1053513.909444] CPU6: Core temperature ab
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</screen>
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</para>
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<para>
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The system journal is readable by root and by users in the <literal>wheel</literal> and <literal>systemd-journal</literal> groups. All users have a private journal that can be read using <command>journalctl</command>.
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The system journal is readable by root and by users in the
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<literal>wheel</literal> and <literal>systemd-journal</literal> groups. All
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users have a private journal that can be read using
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<command>journalctl</command>.
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</para>
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</chapter>
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