shell-args	opt_check_dir
shell-args	opt_check_number
shell-args	opt_check_read
shell-args	parse_common_option
shell-args	print_version
shell-args	show_help
shell-args	show_usage
shell-config	shell_config_get
shell-config	shell_config_set
shell-config	shell_config_del
shell-config	shell_config_comment
shell-error	fatal
shell-error	message
shell-error	verbose
shell-getopt	getopt
shell-getopt	getopts
shell-getopt	getoptex
shell-getopt	getsubopt
shell-quote	quote_sed_regexp
shell-quote	quote_shell
shell-quote	string_quote_remove
