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Full Discussion: Running options in bash script
Top Forums Shell Programming and Scripting Running options in bash script Post 303011085 by Don Cragun on Friday 12th of January 2018 04:48:03 PM
Old 01-12-2018
In addition to what Corona688 already said (although I think he meant getopts instead of getopt), in your example:
Code:
aurt -S <package name>

<package name> is either a -S option option-argument or an aurt operand; not an option. You haven't given us enough information to know which you intended in your example. The getopts utility does not place any length limit on option-argument nor operand strings.

Furthermore with many versions of the Korn shell, the built-in getopts utility can handle long and short options (although some ksh man pages fail to document this feature). The method ksh uses doesn't work on bash version 3.2.57. I don't know if it works on bash 4.x version and, you haven't said what version of bash you're using.

To investigate this further, check the thread ksh parsing arguments in a string rather than from the cmdln.
 

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LEARN ABOUT OPENSOLARIS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a    Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.11							    30 Jan 2004 							 script(1)
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