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POParsing/passing command line arguments to a bash script - what is the difference between "$@" and "$*"?
 

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  1. POParsing/passing command line arguments to a bash script - what is the difference between "$@" and "$*"?
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    <p>I am using a bash script to call and execute a <code>.jar</code> file from any location without having to constantly enter its explicit path.</p> <p>The <code>.jar</code> requires additional variable parameters to be specified at execution, and as these can be anything, they cannot be hard coded into the script.</p> <p>There are 3 variables in total, the first specifies 1 of 2 actions that the <code>.jar</code> is to make, the second specifies a target file to enact this action on and the third specifies the name of a file that the action is to create.</p> <p>The script I am currently using is:</p> <pre><code>#!/bin/bash java -jar "C:\path\to\file.jar" "$1" "$2" "$3" </code></pre> <p>I know very little about bash scripting, but while searching for another answer to my woes (now fixed) I came across <code>"$@"</code> and <code>"$*"</code> when referencing command line arguments. Doing more searching brought me to this site: <a href="http://how-to.wikia.com/wiki/How_to_read_command_line_arguments_in_a_bash_script" rel="noreferrer">How To Wiki: How to read command line arguments in a bash script</a>, but I can't find any solid information about those arguments without having to wade through tons of advanced bash programming that is way above my head.</p> <p>So now that I have rambled on forever, my question is relatively simple:</p> <p>Can I replace <code>"$1" "$2" "$3"</code> with <code>"$@"</code> or <code>"$*"</code>, and if so which is the better one to use?</p> <p>Also what, if any, is the difference between those commands?</p>
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    1. USCraig McQueen
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    1. COpossible duplicate of [What the difference between "$@" and "$\*" in bash?](http://stackoverflow.com/questions/3008695/what-the-difference-between-and-in-bash)
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      1. USchepner
    2. COMy apologies - I had been google searching the difference and that didn't throw up any StackOverflow pages - I forgot to actually search StackOverflow. - sorry.
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    3. COpossible duplicate of [What is the difference between $@ and $\* in shell scripts?](http://stackoverflow.com/questions/2761723/what-is-the-difference-between-and-in-shell-scripts)
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