NAME
systemd-cat - Connect a pipeline or program's output with the journalSYNOPSIS
systemd-cat
[OPTIONS...] [COMMAND]
[ARGUMENTS...]
systemd-cat
[OPTIONS...]
DESCRIPTION
systemd-cat may be used to connect the standard input and output of a process to the journal, or as a filter tool in a shell pipeline to pass the output the previous pipeline element generates to the journal. If no parameter is passed, systemd-cat will write everything it reads from standard input (stdin) to the journal. If parameters are passed, they are executed as command line with standard output (stdout) and standard error output (stderr) connected to the journal, so that all it writes is stored in the journal.OPTIONS
The following options are understood: -h, --helpPrint a short help text and exit.
--version
Print a short version string and exit.
-t, --identifier=
Specify a short string that is used to
identify the logging tool. If not specified, no identification string is
written to the journal.
-p, --priority=
Specify the default priority level for the
logged messages. Pass one of "emerg", "alert",
"crit", "err", "warning", "notice",
"info", "debug", or a value between 0 and 7 (corresponding
to the same named levels). These priority values are the same as defined by
syslog(3). Defaults to "info". Note that this simply controls
the default, individual lines may be logged with different levels if they are
prefixed accordingly. For details, see --level-prefix= below.
--stderr-priority=
Specifies the default priority level for
messages from the process's standard error output (stderr). Usage of this
option is the same as the --priority= option, above, and both can be
used at once. When both are used, --priority= will specify the default
priority for standard output (stdout).
If --stderr-priority= is not specified, messages from stderr will still
be logged, with the same default priority level as stdout.
Also, note that when stdout and stderr use the same default priority, the
messages will be strictly ordered, because one channel is used for both. When
the default priority differs, two channels are used, and so stdout messages
will not be strictly ordered with respect to stderr messages - though they
will tend to be approximately ordered.
--level-prefix=
Controls whether lines read are parsed for
syslog priority level prefixes. If enabled (the default), a line prefixed with
a priority prefix such as "<5>" is logged at priority 5
("notice"), and similarly for the other priority levels. Takes a
boolean argument.
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.EXAMPLES
Example 1. Invoke a program This calls /bin/ls with standard output and error connected to the journal:# systemd-cat ls
# ls | systemd-cat
SEE ALSO
systemd(1), systemctl(1), logger(1)systemd 252 |