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Shell Programming and Scripting

Convert Hex - KSH

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# 1  
Old 12-19-2011
Tools Convert Hex - KSH
Hello,

I woild like to convert hex on KSH not BASH:

I tried to use:
Code:
tmp=31
printf "\x"${tmp}""

it works on bash - Output is '1' but not on ksh.

please advice on the right syntax.

Thanks.
Last edited by Scott; 12-19-2011 at 06:38 AM.. Reason: Code tags
# 2  
Old 12-19-2011
Code:
$ printf "%x\n" ${tmp}
1f

Should work on ksh/bash
# 3  
Old 12-19-2011
Thank for the quick reply.
The correct output should be 1 not 1f since 31 in hex = 1
Maby I wasnt clear before:
I want to convert from hex to char (ascii table) - and 31 (hex)= 1(char).
# 4  
Old 12-19-2011
Method using "bc" to first convert from Hex to Octal, the using "echo" to convert from Octal to Character.
The "cat -v" is just to avoid displaying real control codes.

Code:
while true
do
        echo "Enter Hex character: \c";read HEX
        if [ "${HEX}""X" = "X" ]
        then
                break
        fi
        HEX=`echo "${HEX}"|tr [a-z] [A-Z]`
        OCT=`echo "obase=8;ibase=16;${HEX}"|bc`
        CHAR=`echo "\0${OCT}"`
        echo "${HEX}=${CHAR}"|cat -v
done

# 5  
Old 12-19-2011
Thanks!!!!!!
it works!!
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