Hex to dec to bin conversion

There exist a plethora of different manners to convert numbers. Some use bc, others use the shell, but there is a small program that does the trick pretty well: pcalc.

Look at the output:

> pcalc 3124
        3124            0xc34           0y110000110100
> pcalc 0x5349-99
        21222           0x52e6          0y101001011100110

Simple and effective, that's it.