X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fjournalctl.xml;h=011fea28004e9f32168aa6f400518076b2a1686b;hp=b8b29b4cb5da2e6f74c9dd5193e3fbc61b356a0f;hb=e7176abbe818c75c6acd90227a7a84c3e05fee31;hpb=77a9e8de6572db6ba5ca49023937b67fc835f356 diff --git a/man/journalctl.xml b/man/journalctl.xml index b8b29b4cb..011fea280 100644 --- a/man/journalctl.xml +++ b/man/journalctl.xml @@ -104,7 +104,7 @@ All users are granted access to their private per-user journals. However, by default, only root and - users who are members of the adm + users who are members of the systemd-journal group get access to the system journal and the journals of other users. @@ -152,11 +152,20 @@ - + + + + Ellipsize fields when + they do not fit in available columns. + The default is to show full fields, + allowing them to wrap or be truncated + by the pager if one is used. - Show all (printable) fields in - full. + The old options + / + are not useful anymore, except to undo + . @@ -233,53 +242,150 @@ Controls the formatting of the journal entries that - are shown. Takes one of - short, - short-monotonic, - verbose, - export, - json, - json-pretty, - json-sse, - cat. short - is the default and generates an output - that is mostly identical to the - formatting of classic syslog - files, showing one line per journal - entry. short-monotonic - is very similar but shows monotonic - timestamps instead of wallclock - timestamps. verbose - shows the full structured entry items - with all - fields. export - serializes the journal into a binary - (but mostly text-based) stream - suitable for backups and network - transfer (see Journal - Export Format for more - information). json - formats entries as JSON data - structures, one per - line (see Journal - JSON Format for more - information). json-pretty - also formats entries as JSON data - structures, but formats them in - multiple lines in order to make them - more readable for - humans. json-sse - also formats entries as JSON data - structures, but wraps them in a format - suitable for Server-Sent - Events. cat - generates a very terse output only - showing the actual message of each - journal entry with no meta data, not - even a timestamp. + are shown. Takes one of the following options: + + + + + + + + is the default + and generates an output + that is mostly identical + to the formatting of + classic syslog files, + showing one line per + journal entry. + + + + + + + + + is very similar, + but shows ISO 8601 + wallclock timestamps. + + + + + + + + + + is very similar, + but shows timestamps + with full microsecond + precision. + + + + + + + + + + is very similar, + but shows monotonic + timestamps instead of + wallclock timestamps. + + + + + + + + + + shows the + full-structured entry + items with all fields. + + + + + + + + + + serializes the + journal into a binary + (but mostly text-based) + stream suitable for + backups and network + transfer (see Journal + Export Format + for more + information). + + + + + + + + + formats entries + as JSON data structures, + one per line (see Journal + JSON Format for + more information). + + + + + + + + + formats entries as + JSON data structures, + but formats them in + multiple lines in order + to make them more + readable for humans. + + + + + + + + + formats entries as + JSON data structures, + but wraps them in a + format suitable for Server-Sent + Events. + + + + + + + + + generates a very + terse output only + showing the actual + message of each journal + entry with no meta data, + not even a timestamp. + + + + + @@ -295,7 +401,7 @@ context of an error or log event, possible solutions, as well as pointers to support forums, developer - documentation and any other relevant + documentation, and any other relevant manuals. Note that help texts are not available for all messages, but only for selected ones. For more @@ -303,7 +409,14 @@ please refer to the Message Catalog Developer - Documentation. + Documentation. + + Note: when attaching + journalctl output + to bug reports, please do + not use + . + @@ -327,23 +440,70 @@ - - + + + + Show messages from a specific + boot. This will add a match for + _BOOT_ID=. + + The argument may be empty, in which case + logs for the current boot will be shown. + + If the boot ID is omitted, a positive + offset will look up + the boots starting from the beginning of the + journal, and a equal-or-less-than zero + offset will look up + boots starting from the end of the + journal. Thus, 1 means the + first boot found in the journal in the + chronological order, 2 the + second and so on; while -0 + is the last boot, -1 the + boot before that, and so on. An empty + offset is equivalent + to specifying -0, except + when the current boot is not the last boot + (e.g. because was + specified to look at logs from a different + machine). + + If the 32 character + ID is specified, it + may optionally be followed by + offset which + identifies the boot relative to the one given by + boot ID. Negative + values mean earlier boots and a positive values + mean later boots. If + offset is not + specified, a value of zero is assumed and the + logs for the boot given by + ID are shown. + - Show data only from - current boot. This will add a match - for _BOOT_ID= for - the current boot ID of the - kernel. + + + + + + + Show a tabular list of + boot numbers (relative to current + boot), their IDs, and the timestamps + of the first and last message + pertaining to the boot. + - Show kernel messages from - current boot. This implies - and adds the match _TRANSPORT=kernel. + Show only kernel messages. This + implies and adds the match + _TRANSPORT=kernel. @@ -422,6 +582,16 @@ cursor. + + + + Start showing entries from the + location in the journal + after the location + specified by the this cursor. + + + @@ -721,6 +891,10 @@ journalctl /dev/sda + Show all kernel logs from previous boot: + + journalctl -k -b -1 +