apt install postgresql
Ver Cluster Port Status Owner Data directory Log file
13 main 5432 down postgres /var/lib/postgresql/13/main /var/log/postgresql/postgresql-13-main.log
Creating new PostgreSQL cluster 13/main ...
/usr/lib/postgresql/13/bin/initdb -D /var/lib/postgresql/13/main --auth-local peer --auth-host md5
The database cluster will be initialized with locale "en_US.UTF-8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".
selecting dynamic shared memory implementation ... posix
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting default time zone ... Europe/Warsaw
Success. You can now start the database server using:
# pg_ctlcluster 13 main start
Creating config file /etc/default/sysstat with new version
update-alternatives: using /usr/bin/sar.sysstat to provide /usr/bin/sar (sar) in auto mode
# ps -ef
postgres 133752 1 0 08:27 ? 00:00:00 /usr/lib/postgresql/13/bin/postgres -D /var/lib/postgresql/13/main -c config_file=/
postgres 133754 133752 0 08:27 ? 00:00:00 postgres: 13/main: checkpointer
postgres 133755 133752 0 08:27 ? 00:00:00 postgres: 13/main: background writer
postgres 133756 133752 0 08:27 ? 00:00:00 postgres: 13/main: walwriter
postgres 133757 133752 0 08:27 ? 00:00:00 postgres: 13/main: autovacuum launcher
postgres 133758 133752 0 08:27 ? 00:00:00 postgres: 13/main: stats collector
postgres 133759 133752 0 08:27 ? 00:00:00 postgres: 13/main: logical replication launcher
# netstat -tlpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 133752/postgres
tcp6 0 0 ::1:5432 :::* LISTEN 133752/postgres