psql — PostgreSQL client. More information: <https://www.postgresql.org/docs/current/app-psql.html>.

Connect to the database. By default, it connects to the local socket using port 5432 with the currently logged in user

psql {{database}}

Connect to the database on given server host running on given port with given username, without a password prompt

psql {{[-h|--host]}} {{host}} {{[-p|--port]}} {{port}} {{[-U|--username]}} {{username}} {{database}}

Connect to the database; user will be prompted for password

psql {{[-h|--host]}} {{host}} {{[-p|--port]}} {{port}} {{[-U|--username]}} {{username}} {{[-W|--password]}} {{database}}

Execute a single SQL query or PostgreSQL command on the given database (useful in shell scripts)

psql {{[-c|--command]}} '{{query}}' {{database}}

Execute commands from a file on the given database

psql {{database}} {{[-f|--file]}} {{path/to/file.sql}}