tldr/pages/linux/systemctl-list-sockets.md

systemctl list-sockets

List active socket units currently in memory, ordered by listening address. See also: systemctl list-units, systemctl list-unit-files. More information: https://www.freedesktop.org/software/systemd/man/latest/systemctl.html#list-sockets%20PATTERN%E2%80%A6.

• List active socket units currently in memory:

systemctl list-sockets

• List active socket units with their socket types:

systemctl list-sockets --show-types

• List all socket units, including inactive and failed ones:

systemctl list-sockets {{[-a|--all]}}

• List socket units filtered by state:

systemctl list-sockets --state {{active|inactive|failed|...}}

• List socket units matching a name pattern:

systemctl list-sockets {{pattern1 pattern2 ...}}