Postgresql daily backup script.

pgsql_backup.sh

#!/bin/bash
#
# Backup a Postgresql database into a daily file.
#

BACKUP_DIR=/pg_backup
DAYS_TO_KEEP=14
FILE_SUFFIX=_pg_backup.sql
DATABASE=
USER=postgres

FILE=`date +"%Y%m%d%H%M"`${FILE_SUFFIX}

OUTPUT_FILE=${BACKUP_DIR}/${FILE}

# do the database backup (dump)
# use this command for a database server on localhost. add other options if need be.
pg_dump -U ${USER} ${DATABASE} -F p -f ${OUTPUT_FILE}

# gzip the mysql database dump file
gzip $OUTPUT_FILE

# show the user the result
echo "${OUTPUT_FILE}.gz was created:"
ls -l ${OUTPUT_FILE}.gz

# prune old backups
find $BACKUP_DIR -maxdepth 1 -mtime +$DAYS_TO_KEEP -name "*${FILE_SUFFIX}.gz" -exec rm -rf '{}' ';'

Dump Database without ownership

$ pg_dump --format=c --clean --no-owner --no-privileges -U DBUSER -W -h 127.0.0.1 -d DB_NAME > DB_NAME.dump

Restore Database

$ pg_restore -d dbname filename

https://www.postgresql.org/docs/current/backup-dump.html