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how to check for a string that must be <br />
1) at least one number, and (Numbers are 0-9)<br />
2) at least one letter, and (Letters are A-Za-z)<br />
3) at least 8 characters long. &nbsp;,<br />
valid strings are &quot;aa1234aa&quot;, &quot;1a345678&quot;<br />
invalid strings are &quot;aaaaaaaaaaaaa&quot;, &quot;1a34567&quot;
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how to check for a string that must be 
1) at least one number, and (Numbers are 0-9)
2) at least one letter, and (Letters are A-Za-z)
3) at least 8 characters long.  ,
valid strings are "aa1234aa", "1a345678"
invalid strings are "aaaaaaaaaaaaa", "1a34567"

perl, how to check for a string that must be at least one number, and at least one letter, and at least 8 characters long.

Perl is a high-level, general-purpose, interpreted, dynamic programming languages with over 25 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large-scale development projects.  Perl gained widespread popularity as a Common Gateway Interface (CGI) scripting language, in part due to its regular expression and string parsing abilities. In addition to CGI, Perl is used for graphics programming, system administration, network programming, finance, bioinformatics, and other applications.