perlfunc
gods
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oct - convert a string to an octal number
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oct
<FONT SIZE=-1>EXPR</FONT>
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oct
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Interprets
<FONT SIZE=-1>EXPR</FONT> as an octal string and returns the corresponding value. (If
<FONT SIZE=-1>EXPR</FONT> happens to start off with
<CODE>0x</CODE>, interprets it as a hex string instead.) The following will handle decimal, octal, and hex in the standard Perl or
<FONT SIZE=-1>C</FONT> notation:
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<PRE> $val = oct($val) if $val =~ /^0/;
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If
<FONT SIZE=-1>EXPR</FONT> is omitted, uses <CODE>$_</CODE>. This function is commonly used when a string such as <CODE>644</CODE> needs to be converted into a file mode, for example. (Although perl will
automatically convert strings into numbers as needed, this automatic
conversion assumes base 10.)
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