Bash functions for backing up and restoring any database in PostgreSQL by name

backup-restore-db-functions.sh

backupdb () {
    if [ $# -eq 0 ]
    then
        echo "db_name not specified"
    else
        db_name=$1
        db_name_copy=${db_name}_copy
        psql -c "DROP DATABASE $db_name_copy;"
        psql -c "CREATE DATABASE $db_name_copy WITH TEMPLATE $db_name;"
    fi
}

restoredb () {
    if [ $# -eq 0 ]
    then
        echo "db_name not specified"
    else
        db_name=$1
        db_name_copy=${db_name}_copy
        psql -c "DROP DATABASE $db_name;"
        psql -c "CREATE DATABASE $db_name WITH TEMPLATE $db_name_copy;"
    fi
}