tldr/pages/common/psql.md

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# psql
> PostgreSQL command-line client
- Connect to *database*. It connects to localhost using default port *5432* with default user
`psql {{database}}`
- Connect to *database* on given server *host* running on given *port* with *username* given
`psql -h {{host}} -p {{port}} -U {{username}} {{database}}`
- Run single *query* against the given *database*. Note: useful in shell scripts
`psql -c '{{query}}' {{database}}`
- Run several queries against the given *database*. Note: useful in shell scripts
`echo '{{query1}}; {{query2}}' | psql {{database}}`