Here is a quick and dirty way of converting a decimal number to hexadecimal, octal, or binary. Below is an inline script followed by a normal shell script file. There are some non-looping examples toward the end of the post.

# ksh

# for i in 100 102 103 104 105 110 1000

> do

>

> typeset -i16 hex

> hex=$i

> print $i equals $hex in hexadecimal

>

> typeset -i8 oct

> oct=$i

> print $i equals $oct in octal

>

> typeset -i2 bin

> bin=$i

> print $i equals $bin in binary

>

>print

> done

100 equals 8#144 in octal

100 equals 2#1100100 in binary

102 equals 8#146 in octal

102 equals 2#1100110 in binary

103 equals 8#147 in octal

103 equals 2#1100111 in binary

104 equals 8#150 in octal

104 equals 2#1101000 in binary

105 equals 8#151 in octal

105 equals 2#1101001 in binary

110 equals 8#156 in octal

110 equals 2#1101110 in binary

1000 equals 16#3e8 in hexadecimal

1000 equals 8#1750 in octal

1000 equals 2#1111101000 in binary

Or put it in a script and specify an argument list via CLI

# vi my_converter.ksh

#!/bin/ksh

echo Add an argument list

exit

fi

hex=$i

print $i equals $hex in hexadecimal

oct=$i

print $i equals $oct in octal

bin=$i

print $i equals $bin in binary

done

:wq!

# chmod 755 my_converter.ksh

# my_converter.ksh 23 32 33 (Michael Jordan, Magic Johnson, Larry Bird)

No looping examples# sh

Convert Decimal to Hexadecimal

# echo 'obase=16;100'| bc

64

Convert Decimal to Decimal

# echo 'obase=10;10'| bc

10

Convert Decimal to Octal

# echo 'obase=8;34'| bc

42

Convert Decimal to Binary

# echo 'obase=2;10'| bc

1010

Binary, Octal, Hexadecimal to Decimal

# ksh

# echo $((2#101010))

42

# echo $((8#52))

42

# echo $((16#2A))

42