Linux / UNIX: Convert Hexadecimal to Decimal Number

To convert a hexadecimal number to a decimal number in Linux or Unix, you can use the bc utility, which is a command-line calculator that can perform arithmetic operations and conversions.

To use bc to convert a hexadecimal number to a decimal number, you can use the obase and ibase options to specify the base of the input and output numbers, respectively. For example, to convert the hexadecimal number 0x1234 to a decimal number, you can use the following command:

echo "obase=10; ibase=16; 0x1234" | bc

This will output the decimal equivalent of the hexadecimal number 0x1234, which is 4660.

You can also use the printf command to convert a hexadecimal number to a decimal number. For example:

printf "%d" 0x1234

This will output the decimal equivalent of the hexadecimal number 0x1234, which is 4660.

Keep in mind that the hexadecimal numbering system uses the digits 0 through 9 and the letters A through F to represent 16 different values, with A representing 10, B representing 11, and so on.

For more information about how to use bc or printf to convert a hexadecimal number to a decimal number in Linux or Unix, you can consult the documentation for these utilities or seek assistance from a qualified Linux or Unix administrator.