Question

I have to call a binary several times with a different argument in a shell script.
For example i have to call the binary “set” with the arguments:

set 0x00
set 0x01
set 0x02
…
set 0x60

Is it possible to do that with a loop in the shell script?

Answer 1

Use the %x format to the printf command to do the conversion, as in printf 0x%x num. To pass the converted value as argument to another command, use the $(...) executive quotes:

$ i=8
$ while [ $i -lt 16 ]; do
> echo $(printf 0x%x $i)
> i=$(expr $i + 1)
> done
0x8
0x9
0xa
0xb
0xc
0xd
0xe
0xf