psql

PostgreSQL command-line 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 -p port -U username database

  • Connect to the database; user will be prompted for password:

psql -h host -p port -U username -W database

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

psql -c 'query' database

  • Execute commands from a file on the given database:

psql database -f file.sql

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