X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fjournalctl.xml;h=922ff4fe06dc9b67c248211162a8526083903753;hb=97f4e8875088ff34da535864afa0054f24071cd5;hp=ffe988a6190b810360461b0977711eefd8fe2c5f;hpb=a963990ff4ebc7908d3cf82bbd8cf34a42d57b7f;p=elogind.git diff --git a/man/journalctl.xml b/man/journalctl.xml index ffe988a61..922ff4fe0 100644 --- a/man/journalctl.xml +++ b/man/journalctl.xml @@ -49,7 +49,7 @@ - journalctl OPTIONS MATCH + journalctl OPTIONS MATCHES @@ -66,12 +66,25 @@ contents of the journal, starting with the oldest entry collected. - If a match argument is passed the output is - filtered accordingly. A match is in the format - FIELD=VALUE, - e.g. _SYSTEMD_UNIT=httpd.service. See + If one or more match arguments are passed the + output is filtered accordingly. A match is in the + format FIELD=VALUE, + e.g. _SYSTEMD_UNIT=httpd.service, + referring to the components of a structured journal + entry. See systemd.journal-fields7 - for a list of well-known fields. + for a list of well-known fields. If multiple matches + are specified matching different fields the log + entries are filtered by both, i.e. the resulting output + will show only entries matching all the specified + matches of this kind. If two matches apply to the same + field, then they are automatically matched as + alternatives, i.e. the resulting output will show + entries matching any of the specified matches for the + same field. Finally, if the character + "+" appears as separate word on the + command line all matches before and after are combined + in a disjunction (i.e. logical OR). Output is interleaved from all accessible journal files, whether they are rotated or currently @@ -128,7 +141,7 @@ Show only most recent - journal entries, and continously print + journal entries, and continuously print new entries as they are appended to the journal. @@ -160,8 +173,8 @@ Controls the - formatting of the journal entries that are - shown. Takes one of + formatting of the journal entries that + are shown. Takes one of short, short-monotonic, verbose, @@ -176,13 +189,16 @@ is very similar but shows monotonic timestamps instead of wallclock timestamps. verbose - shows the full structered entry items + shows the full structured entry items with all - fiels. export + fields. export serializes the journal into a binary (but mostly text-based) stream suitable for backups and network - transfer. json + transfer (see Journal + Export Format for more + information). json formats entries as JSON data structures. cat generates a very terse output only @@ -196,7 +212,7 @@ Suppresses any warning - message regarding inaccessable system + message regarding inaccessible system journals when run as normal user. @@ -223,7 +239,7 @@ Takes an absolute directory path as argument. If - specified will opearte on the + specified will operate on the specified journal directory instead of the default runtime and system journal paths. @@ -245,6 +261,15 @@ similar. + + + + Instead of showing + journal contents show internal header + information of the journal fiels + accessed. + + @@ -271,6 +296,37 @@ + + Examples + + Without arguments all collected logs are shown + unfiltered: + + journalctl + + With one match specified all entries with a field matching the expression are shown: + + journalctl _SYSTEMD_UNIT=avahi-daemon.service + + If two different fields are matched only entries matching both expressions at the same time are shown: + + journalctl _SYSTEMD_UNIT=avahi-daemon.service _PID=28097 + + If two matches refer to the same field all entries matching either expression are shown: + + journalctl _SYSTEMD_UNIT=avahi-daemon.service _SYSTEMD_UNIT=dbus.service + + If the separator "+" is used + two expression may be combined in a logical OR. The + following will show all messages from the Avahi + service process with the PID 28097 plus all messages + from the D-Bus service (from any of its + processes): + + journalctl _SYSTEMD_UNIT=avahi-daemon.service _PID=28097 + _SYSTEMD_UNIT=dbus.service + + + See Also