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.

The old options -l/--full are not useful anymore, except to undo --no-full.

Show all fields in full, even if they include unprintable characters or are very long.

Show only the most recent journal entries, and continuously print new entries as they are appended to the journal.

Immediately jump to the end of the journal inside the implied pager tool. This implies -n1000 to guarantee that the pager will not buffer logs of unbounded size. This may be overridden with an explicit -n with some other numeric value while -nall will disable this cap. Note that this option is only supported for the less(1) pager.

Show the most recent journal events and limit the number of events shown. If --follow is used, this option is implied. The argument is a positive integer or "all" to disable line limiting. The default value is 10 if no argument is given.

Show all stored output lines, even in follow mode. Undoes the effect of --lines=.

Reverse output so that the newest entries are displayed first.

Controls the formatting of the journal entries that are shown. Takes one of the following options:

Express time in Coordinated Universal Time (UTC).

Augment log lines with explanation texts from the message catalog. This will add explanatory help texts to log messages in the output where this is available. These short help texts will explain the context of an error or log event, possible solutions, as well as pointers to support forums, developer documentation, and any other relevant manuals. Note that help texts are not available for all messages, but only for selected ones. For more information on the message catalog, please refer to the Message Catalog Developer Documentation.

Note: when attaching journalctl output to bug reports, please do not use -x.

Suppresses any warning messages regarding inaccessible system journals when run as a normal user.

Show entries interleaved from all available journals, including remote ones.

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 chronological order, 2 the second and so on; while -0 is the last boot, -1 the boot before last, and so on. An empty offset is equivalent to specifying -0, except when the current boot is not the last boot (e.g. because --directory 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 a tabular list of boot numbers (relative to the current boot), their IDs, and the timestamps of the first and last message pertaining to the boot.

Show only kernel messages. This implies -b and adds the match "_TRANSPORT=kernel".

Show messages for the specified syslog identifier SYSLOG_IDENTIFIER, or for any of the messages with a "SYSLOG_IDENTIFIER" matched by PATTERN.

This parameter can be specified multiple times.

Show messages for the specified systemd unit UNIT (such as a service unit), or for any of the units matched by PATTERN. If a pattern is specified, a list of unit names found in the journal is compared with the specified pattern and all that match are used. For each unit name, a match is added for messages from the unit ("_SYSTEMD_UNIT=UNIT"), along with additional matches for messages from systemd and messages about coredumps for the specified unit.

This parameter can be specified multiple times.

Show messages for the specified user session unit. This will add a match for messages from the unit ("_SYSTEMD_USER_UNIT=" and "_UID=") and additional matches for messages from session systemd and messages about coredumps for the specified unit.

This parameter can be specified multiple times.

Filter output by message priorities or priority ranges. Takes either a single numeric or textual log level (i.e. between 0/"emerg" and 7/"debug"), or a range of numeric/text log levels in the form FROM..TO. The log levels are the usual syslog log levels as documented in syslog(3), i.e. "emerg" (0), "alert" (1), "crit" (2), "err" (3), "warning" (4), "notice" (5), "info" (6), "debug" (7). If a single log level is specified, all messages with this log level or a lower (hence more important) log level are shown. If a range is specified, all messages within the range are shown, including both the start and the end value of the range. This will add "PRIORITY=" matches for the specified priorities.

Start showing entries from the location in the journal specified by the passed cursor.

Start showing entries from the location in the journal after the location specified by the this cursor. The cursor is shown when the --show-cursor option is used.

The cursor is shown after the last entry after two dashes:

-- cursor: s=0639...

The format of the cursor is private and subject to change.

Start showing entries on or newer than the specified date, or on or older than the specified date, respectively. Date specifications should be of the format "2012-10-30 18:17:16". If the time part is omitted, "00:00:00" is assumed. If only the seconds component is omitted, ":00" is assumed. If the date component is omitted, the current day is assumed. Alternatively the strings "yesterday", "today", "tomorrow" are understood, which refer to 00:00:00 of the day before the current day, the current day, or the day after the current day, respectively. "now" refers to the current time. Finally, relative times may be specified, prefixed with "-" or "+", referring to times before or after the current time, respectively.

Print all possible data values the specified field can take in all entries of the journal.

Show messages from system services and the kernel (with --system). Show messages from service of current user (with --user). If neither is specified, show all messages that the user can see.

Show messages from a running, local container. Specify a container name to connect to.

Takes a directory path as argument. If specified, journalctl will operate on the specified journal directory DIR instead of the default runtime and system journal paths.

Takes a file glob as an argument. If specified, journalctl will operate on the specified journal files matching GLOB instead of the default runtime and system journal paths. May be specified multiple times, in which case files will be suitably interleaved.

Takes a directory path as an argument. If specified, journalctl will operate on catalog file hierarchy underneath the specified directory instead of the root directory (e.g. --update-catalog will create ROOT/var/lib/systemd/catalog/database).

Instead of showing journal contents, generate a new 128-bit ID suitable for identifying messages. This is intended for usage by developers who need a new identifier for a new message they introduce and want to make recognizable. This will print the new ID in three different formats which can be copied into source code or similar.

Instead of showing journal contents, show internal header information of the journal fields accessed.

Shows the current disk usage of all journal files. This shows the sum of the disk usage of all archived and active journal files.

Removes archived journal files until the disk space they use falls below the specified size (specified with the usual K, M, G, T suffixes), or all journal files contain no data older than the specified timespan (specified with the usual s, min, h, days, months, weeks, years suffixes). Note that running --vacuum-size= has only indirect effect on the output shown by --disk-usage as the latter includes active journal files, while the former only operates on archived journal files. --vacuum-size= and --vacuum-time= may be combined in a single invocation to enforce both a size and time limit on the archived journal files.

List the contents of the message catalog as a table of message IDs, plus their short description strings.

If any 128-bit-IDs are specified, only those entries are shown.

Show the contents of the message catalog, with entries separated by a line consisting of two dashes and the ID (the format is the same as .catalog files).

If any 128-bit-IDs are specified, only those entries are shown.

Update the message catalog index. This command needs to be executed each time new catalog files are installed, removed, or updated to rebuild the binary catalog index.

Instead of showing journal contents, generate a new key pair for Forward Secure Sealing (FSS). This will generate a sealing key and a verification key. The sealing key is stored in the journal data directory and shall remain on the host. The verification key should be stored externally. Refer to the Seal= option in journald.conf(5) for information on Forward Secure Sealing and for a link to a refereed scholarly paper detailing the cryptographic theory it is based on.

When --setup-keys is passed and Forward Secure Sealing (FSS) has already been configured, recreate FSS keys.

Specifies the change interval for the sealing key when generating an FSS key pair with --setup-keys. Shorter intervals increase CPU consumption but shorten the time range of undetectable journal alterations. Defaults to 15min.

Check the journal file for internal consistency. If the file has been generated with FSS enabled and the FSS verification key has been specified with --verify-key=, authenticity of the journal file is verified.

Specifies the FSS verification key to use for the --verify operation.

Asks the Journal daemon to flush any log data stored in /run/log/journal into /var/log/journal, if persistent storage is enabled. This call does not return until the operation is complete.

Print a short help text and exit.

Print a short version string and exit.

Do not pipe output into a pager.

Pager to use when --no-pager is not given; overrides $PAGER. Setting this to an empty string or the value "cat" is equivalent to passing --no-pager.

Override the default options passed to less ("FRSXMK").