/bin/bash##file name: getopts.sh##Sample script that takes two parameters, a, b, c, and v using getopts.#Parameters a and c are simple on/off switches#The b parameter takes a value.#The v parameter will be used to keep track of a verbosity level;# more '-v's results in a hig...
Parsing options with arguments Options that themselves have arguments are signified with a:. The argument to an option is placed in the variableOPTARG. In the following example, the optionttakes an argument. When the argument is provided, we copy its value to the variabletarget. If no argument...
The usage output of the script is: Usage: count [OPTIONS] N A simple counter. POSITIONAL ARGUMENTS N Number to count OPTIONS -r, --reverse Count reverse -t, --text TEXT Print TEXT when finished counting (default: done) -h, --help Show this help message and exit EXAMPLES count 8 Coun...
A sample run looks like: $ ./a.sh -host foo -user me -pass secret some args host = foo user = me pass = secret args = some args 转自: http://stackoverflow.com/questions/4882349/parsing-shell-script-arguments
Passing Arguments to Bash Scripts In the third part of the Bash Beginner Series, you'll learn to pass arguments to a bash shell script. You'll also learn about special bash shell variables.Arguments can be useful, especially with Bash! So far, you have learned how to use variables to mak...
echo "All arguments passed: $@" # Check the exit status of the last command echo "Exit status of the last command: $?" Output: Name of the script: Main.sh Number of arguments passed: 0 All arguments passed: Exit status of the last command: 0 ...
Effortless Argument Parsing: Handles flags, options, positional arguments, and subcommands. Validates user input for robust error handling. Generates information-rich usage text. Maps arguments to corresponding variables. Standalone Bash Script Creation: ...
Arguments for bash script interfaceChristian Margreitter
Checking the uses of the number of arguments in Bash script for various purposes such as error handling, providing messages based on the number of arguments.
known as arguments—to specify data to be used as values for variables in the scripts is one method for accomplishing this. Another is the use of options and option arguments. This article explores these two methods for getting data into the script and controlling the script's execution path....