| optigrab-package | Optigrab |
| gnu_style | GNU-style command line options |
| is_flag | Determine if/which vector element are options flags |
| java_style | Java-style command line options |
| ms_style | Microsoft-style command line options |
| optigrab | Optigrab |
| opt_assign | Parse options and assign values |
| opt_assign_all | Parse options and assign values |
| opt_expand | Expand opts to full vector |
| opt_fill | opt_fill |
| opt_get | Get option's values from the command-line |
| opt_get_args | Return arguments to Rscript |
| opt_get_gnu | Get option's values from the command-line |
| opt_get_java | Get option's values from the command-line |
| opt_get_ms | Get option's values from the command-line |
| opt_get_path | Get path current running script |
| opt_get_verb | Get verb from the command line |
| opt_grab | Get option's values from the command-line |
| opt_help | Automatic usage/help information |
| opt_split_args | Split command arguments |
| opt_style | Get or set the optigrab style |
| str_to_opts | Split a string bases on whitespace |
| styles | Get or set the optigrab style |
| this_file | this_file |
| which.flag | Determine if/which vector element are options flags |