systemctl-whoami
Show unit owning a process
TLDR
Show current shell's unit
$ systemctl whoami
Show for user service manager$ systemctl whoami --user
Show unit for specific PID$ systemctl whoami [pid]
Show units for multiple PIDs$ systemctl whoami [pid1 pid2 ...]
SYNOPSIS
systemctl whoami [PID...]
DESCRIPTION
systemctl whoami displays which systemd unit a process belongs to. Without arguments, it shows the unit of the current shell (the process running systemctl).
With PIDs specified, it shows the units for those processes. This helps identify which service or scope owns a particular process.
PARAMETERS
--user
Query user service manager--system
Query system service manager (default)
CAVEATS
Processes not managed by systemd may show as belonging to the root slice or have no associated unit. Container processes may appear differently.
HISTORY
The whoami subcommand provides a quick way to identify which unit a process is running under, useful for debugging and understanding cgroup membership.
SEE ALSO
systemctl-status(1), systemctl(1), ps(1)