Hyper Dictionary

English Dictionary Computer Dictionary Video Dictionary Thesaurus Dream Dictionary Medical Dictionary


Search Dictionary:  

Meaning of COMMAND LINE OPTION

 
Computing Dictionary
 
 Definition: 

(Or "option", "flag", "switch", "option switch") An argument to a command that modifies its function rather than providing data. Options generally start with "-" in unix or "/" in ms-dos. This is usually followed by a single letter or occasionally a digit.

Some commands require each option to be a separate argument, introduced by a new "-" or "/", others allow multiple option letters to be concatenated into a single argument with a single "-" or "/", e.g. "ls -al". A few Unix commands (e.g. ar, tar) allow the "-" to be omitted. Some options may or must be followed by a value, e.g. "cc prog.c -o prog", sometimes with and sometimes without an intervening space.

getopt and getopts are commands for parsing command line options. There is also a c library routine called getopt for the same purpose.

 

 

COPYRIGHT © 2000-2013 HYPERDICTIONARY.COM HOME | ABOUT HYPERDICTIONARY