shell getopt

This article was reproduced from: Http://yejinxin.github.io/parse-shell-options-with-getopt-commandIn a previous article, we described how to use the shell's built-in getopts command to help us with Shell scripting options and parameters, with the

Transferred from: https://www.cnblogs.com/qingergege/p/5914218.htmlRecently in the Linux C programming, undergraduate time did not study well, hope to learn younger brothers learn lesson.Well, it's a bit verbose, but it's really a piece of advice.

The shell getopts and getopt usage 1.getoptsgetopts (shell built-in command) cannot directly handle long options (such as:--prefix=/home, etc.), Getopts has two parameters, the first parameter is a string, including characters and ":", each

Getopt/getopts: command line option/parameter processing in Bash 0. When writing a program, you must always process command line parameters. This article describes the command line Processing Method in Bash. Options and parameters: for example, the

The following is an example of how the Python getopt module processes command line options. In python programming, the getopt module is as flexible and practical as the getopt parameter module in shell. The getopt module is used to extract command

The Bash shell provides a number of different ways to get data from users, including the following 3 methods: Command line arguments (data added in the back of fame) command-line Options (single letter with modifiable command behavior)

To become a flexible tool, a qualified script must provide additional information to describe the role of the script, how it is executed, and where it is executed. Like the command, the script also uses parameters. Switches and parameters increase

#!/bin/sh# description show_usage= "args: [-I,-P,-u,-w,-A,-s,-D,-v] [--ip=,--port=,--user=,--pwd=,--path=,--scrip t=,--debug=,--version=] "#参数opt_ip =" "opt_port=" "opt_user=" "opt_pwd=" "opt_path=" "opt_script=" "opt_debug=" "Opt_ version= ""

1#!/bin/Bash2Temp= 'getopt-O HM:--LongAai:,mai:-N'getopts.sh'--"[email protected]"`3Eval Set--"$TEMP"4 while true5 Do6 Case " $" inch7-h|--AAI)8 Echo$29 Shift 2;;Ten-m|--mai) One Echo$2 A Shift 2;; ---) - Shift the Break ;; -*)

Question Description: How do you deal with command-line options such as Tail-n Access.log in a Linux shell? In bash, command line arguments can be handled in three ways, each with its own scenario. 1, direct processing, in turn to the $1,$2,..., $n,