| hex - convert a string to a hexadecimal number |
hex - convert a string to a hexadecimal number
hex EXPR
hex
Interprets EXPR as a hex string and returns the corresponding value.
(To convert strings that might start with either 0, 0x, or 0b, see
oct in the perlfunc manpage.) If EXPR is omitted, uses $_.
print hex '0xAf'; # prints '175'
print hex 'aF'; # same
Hex strings may only represent integers. Strings that would cause integer overflow trigger a warning. Leading whitespace is not stripped, unlike oct(). To present something as hex, look into printf in the perlfunc manpage, sprintf in the perlfunc manpage, or unpack in the perlfunc manpage.
| hex - convert a string to a hexadecimal number |