systemd-cat
Connect command output to the systemd journal
TLDR
Write the output of a command to the journal
$ systemd-cat [command]
Write the output of a pipeline to the journal$ [command] | systemd-cat
Use a specified identifier for log entries$ [command] | systemd-cat -t [id]
Use a specified priority level for logged messages$ systemd-cat -p [emerg|alert|crit|err|warning|notice|info|debug] [command]
Use a specified priority for stderr messages$ systemd-cat --stderr-priority [priority] [command]
SYNOPSIS
systemd-cat [options] [command] [arguments]
DESCRIPTION
systemd-cat connects a command or pipeline's output streams to the systemd journal. It is useful for logging output from cron jobs, scripts, or any command that doesn't natively support journal logging.When run with a command, both stdout and stderr are captured. When used as a pipe target, only stdin (the pipe) is captured while stderr remains connected to the terminal.
PARAMETERS
-t, --identifier _name_
Syslog identifier for log entries-p, --priority _level_
Default priority level for stdout messages--stderr-priority _level_
Priority level for stderr messages--level-prefix BOOL
Interpret sd-daemon(3) style priority prefixes in log output (default: true)-h, --help
Display help information
INSTALL
sudo apt install systemd
sudo dnf install systemd
sudo pacman -S systemd
sudo zypper install systemd
brew install systemd
nix profile install nixpkgs#systemd
CAVEATS
When used in a pipeline, only the piped output is captured. The identifier defaults to the name of the invoked program, or "cat" in pipe mode. Priority levels follow syslog conventions (0=emerg through 7=debug).
SEE ALSO
journalctl(1), logger(1), systemctl(1)
