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    <p>Read <code>man getopt</code> <a href="http://linux.die.net/man/3/getopt" rel="noreferrer">http://linux.die.net/man/3/getopt</a></p> <blockquote> <p>optstring is a string containing the legitimate option characters. If such a character is followed by a colon, the option requires an argument, so getopt() places a pointer to the following text in the same argv-element, or the text of the following argv-element, in optarg. Two colons mean an option takes an optional arg; if there is text in the current argv-element (i.e., in the same word as the option name itself, for example, "-oarg"), then it is returned in optarg, otherwise optarg is set to zero.</p> </blockquote> <p>A sample code:</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;unistd.h&gt; int main (int argc, char *argv[]) { int opt; while ((opt = getopt (argc, argv, "i:o:")) != -1) { switch (opt) { case 'i': printf ("Input file: \"%s\"\n", optarg); break; case 'o': printf ("Output file: \"%s\"\n", optarg); break; } } return 0; } </code></pre> <p>Here in the <code>optstring</code> is "i:o:" the colon ':' character after each character in the string tells that those options will require an argument. You can find argument as a string in the <code>optarg</code> global var. See manual for detail and more examples.</p> <p>For more than one character option switches, see the long options <code>getopt_long</code>. Check the manual for examples.</p> <p><strong>EDIT</strong> in response to the single '-' long options:</p> <p>From the man pages</p> <blockquote> <p>getopt_long_only() is like getopt_long(), but '-' as well as "--" can indicate a long option. If an option that starts with '-' (not "--") doesn't match a long option, but does match a short option, it is parsed as a short option instead.</p> </blockquote> <p>Check the manual and try it.</p>
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    1. COI have tried using getopt_long, but my program is not recognizing the the arguments. I have added my code above.
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    2. CO@AndroidDev93: Check my edit
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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