usage

• Amazon Redshift: show permissions (has_schema_privilege)

function usage() {
    echo "Usage:" $(basename $0) Explain options here"
    exit 0
}

[ -z $1 ] && { usage; }

Related

• if
• HAS_SCHEMA_PRIVILEGE: USAGE
• help
• exit 0, trap, set -e
• test
• set

See also

• set, unset, set -o, set -x, set -e, set +e, set -E, set +b, set -u, $?, exit, return, trap, PostgreSQL SET
• if, man test, -z, elif
• Command-line argument parsing, argparse, optparse, click, inquirer, docopt, help, usage, minimist