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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}}`
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