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This article mainly introduces the use of linux getopt command parsing command line options, the article is very detailed, has a certain reference value, interested friends must read!

The getopt command is used to parse command-line options and detect whether a given option is valid. In this command, the options section is mainly used to influence the parsing options of the getopt command, where optstring is a string of legal options that need to be parsed, and paramenters is usually a set of variables that store each option and parameter obtained from the command line.

Syntax format: getopt [parameters]

Common parameters:

-an allows long options to start with a single character "-"-n specifies a program for the getopt (3) function to use-o to recognize the short option of a single character when outputting error messages-Q forbids the output of error messages

Reference example

Check the supplied parameter list (- a-b test1-cd test2 test3) and parse based on the supplied optstring:

[root@linuxcool] # getopt ab:cd-a-b test1-cd test2 test3 above is all the contents of parsing command line options using linux's getopt command. Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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