I'd like to echo the interger-value of single characters entered via stdin; in pascal I'd write something like:
print int(inchar)
but I can't find the bash-script equivalent of 'int'. Can anyone help? Thanks.
Full Version: Echoing the integer-value of a character
bash doesn't support variable types. in bash, all variable are essentially character strings. as far as how to do what you're looking to do, I'm not really sure...
Easy one:
read var1
echo $var1
read var1
echo $var1
That just returns the character here.
What I think he wants is the character code, the ascii value of the character entered. But I don't know how to answer it, sorry.
What I think he wants is the character code, the ascii value of the character entered. But I don't know how to answer it, sorry.
Yes, neddie, that is what I wanted and your suggestion does only return the character, steve. Thanks, nevertheless. 
As it happens, I've managed to solve my problem another way, so knowing the value is unimportant. What is bugging me at the moment is the following:
I want to return one of three possible values from a script back to its caller, using "return result_value" but get the message
Can one of you tell me what "sourced script" means, and, possibly, how to overcome the problem. Thanks
As it happens, I've managed to solve my problem another way, so knowing the value is unimportant. What is bugging me at the moment is the following:
I want to return one of three possible values from a script back to its caller, using "return result_value" but get the message
CODE
can only `return' from a function or sourced script
Can one of you tell me what "sourced script" means, and, possibly, how to overcome the problem. Thanks
I stumbled across the following on http://www.webservertalk.com/message1585326.html ; and it does exactly what I need. : 
Great stuff.
CODE
ord()
{
if [[ $1 ]]
then
echo "$(od -td1 <<<"$1" | awk 'NR==1{print $2}')"
else
exit 1
fi
}
for i
do
for ((j=0; j < ${#i}; ++j))
do
ch=${i:$j:1}
dec=$(ord "$ch")
echo -e "char: '$ch'\t ord: $dec"
done
done
{
if [[ $1 ]]
then
echo "$(od -td1 <<<"$1" | awk 'NR==1{print $2}')"
else
exit 1
fi
}
for i
do
for ((j=0; j < ${#i}; ++j))
do
ch=${i:$j:1}
dec=$(ord "$ch")
echo -e "char: '$ch'\t ord: $dec"
done
done
Great stuff.
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