NAME
systemd-cat - Connect a pipeline or program's output with the journal
SYNOPSIS
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, --help
Print 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.
--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
similar 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
Example 2. Usage in a shell pipeline
This builds a shell pipeline also invoking /bin/ls and writes the
output it generates to the journal:
# ls | systemd-cat
Even though the two examples have very similar effects the first is
preferable since only one process is running at a time, and both stdout
and stderr are captured while in the second example, only stdout is
captured.
SEE ALSO
systemd(1), systemctl(1), logger(1)
More Linux Commands
manpages/SDL_VideoDriverName.3.html
SDL_VideoDriverName(3) - Obtain the name of the video driver
The buffer pointed to by namebuf is filled up to a maximum of maxlen characters (include the NULL terminator) with the name of the initialised video driver. The
manpages/find_key_by_type_and_name.3.html
find_key_by_type_and_name(3) Find a key by type and name....
find_key_by_type_and_name() searches for a key with the given type and exact description, firstly in the thread, process and session keyrings to which a process
manpages/IsCursorKey.3.html
IsCursorKey(3) - keysym classification macros (Man Page)....
The IsCursorKey macro returns True if the specified KeySym is a cursor key. The IsFunctionKey macro returns True if the KeySym is a function key. The IsKeypadKe
manpages/pfbtops.1.html
pfbtops(1) - translate a PostScript font in .pfb format to A
pfbtops translates a PostScript font in .pfb format to ASCII, splitting overlong lines in text packets into smaller chunks. If pfb_file is omitted the pfb file
manpages/bootchart.conf.5.html
bootchart.conf(5) Boot performance analysis graphing tool co
When starting, systemd-bootchart will read the configuration file bootchart.conf. This configuration file determines logging parameters and graph output. OPTION
manpages/ldap_dn2dcedn.3.html
ldap_dn2dcedn(3) - LDAP DN handling routines (Man Page).....
These routines allow LDAP entry names (Distinguished Names, or DNs) to be obtained, parsed, converted to a user-friendly form, and tested. A DN has the form des
manpages/XkbKeySymsPtr.3.html
XkbKeySymsPtr(3) - Returns the pointer to the two-dimensiona
XkbKeySymsPtr.3 - The key width and number of groups associated with a key are used to form a small two-dimensional array of KeySyms for a key. This array may b
manpages/Encode::Alias.3pm.html
Encode::Alias(3pm) - alias definitions to encodings.........
Allows newName to be used as an alias for ENCODING . ENCODING may be either the name of an encoding or an encoding object (as described in Encode). Currently th
manpages/XSetClipRectangles.3.html
XSetClipRectangles(3) - GC convenience routines (Man Page)
The XSetClipOrigin function sets the clip origin in the specified GC. The clip-mask origin is interpreted relative to the origin of whatever destination drawabl
manpages/Tcl_ExprObj.3.html
Tcl_ExprObj(3) - evaluate an expression - Linux manual page
These four procedures all evaluate an expression, returning the result in one of four different forms. The expression is given by the objPtr argument, and it ca
manpages/splashy-theme.xml.5.html
splashy-theme.xml(5) - a user-mode, POSIX and LSB compliant,
/etc/splashy/themes/*/theme.xml describes the themes behaviour The theme on which the file will have effect is the one which is contained in the same directory
manpages/mbrlen.3.html
mbrlen(3) - determine number of bytes in next multibyte char
The mbrlen() function inspects at most n bytes of the multibyte string starting at s and extracts the next complete multibyte character. It updates the shift st
