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Busybox ash/dash – Hexadecimal To Decimal in Shell Script (via Stack Overflow)

Posted by jpluimers on 2021/12/21

This works fine on “BusyBox v1.29.3 (2019-05-21 15:22:06 PDT) multi-call binary.” that is included with VMware ESXi 6.5 update 3:

[Wayback] bash – Hexadecimal To Decimal in Shell Script – Stack Overflow

Dealing with a very lightweight embedded version of busybox on Linux means many of the traditional commands are not available (bc, printf, dc, perl, python)

echo $((0x2f))
47

hexNum=2f
echo $((0x${hexNum}))
47

Credit to [Wayback] Peter Leung for this solution.

–jeroen

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