The name that will be used by the getopt(3) routines when it reports errors. Longopts may be followed by one colon to indicate it has a required argument, andīy two colons to indicate it has an optional argument. Given more than once, the longopts are cumulative. More than one option name mayīe specified at once, by separating the names with commas. The long (multi-character) options to be recognized.

Whether this enhanced version of getopt(1) is installed, a special test option ( -T) can beĪllow long options to start with a single ' -'.ĭisplay help text and exit. Preserving those characters, but you must call getopt in a way that is no longerĬompatible with other versions (the second or third format in the SYNOPSIS). Interpreted by the shell (usually by using the eval command). Problem, this implementation can generate quoted output which must once again be (shell-specific) special characters in arguments and non-option parameters. Traditional implementations of getopt(1) are unable to cope with whitespace and other Parameter shuffling and recognize optional arguments (see section COMPATIBILITY for more Output that is compatible with that of other versions of getopt(1). Option (does not start with a ' -', the first format in the SYNOPSIS), getopt will generate If the environment variable GETOPT_COMPATIBLE is set, or if the first parameter is not an If no ' -o' or ' -options' option is found in the first part, theįirst parameter of the second part is used as the short options string. Start at the first non-option parameter that is not an option argument, or after the first The parameters which are to be parsed ( parameters in the SYNOPSIS). The way getopt will do the parsing (the options and the optstring in the SYNOPSIS), and The parameters getopt is called with can be divided into two parts: options which modify Procedures, and to check for valid options. SYNOPSIS getopt optstring parameters getopt optstring parameters getopt -o| -options optstring parameters DESCRIPTION getopt is used to break up ( parse) options in command lines for easy parsing by shell Getopt - parse command options (enhanced)

Optibet shell function