manipulating ksh variables

[columb]

I have a variable which looks like AbcDef123 and I want to extract the 123 portion. I can quite happily use

expr $testvar : "[^0-9]*\([0-9]*\)"

or

echo $testvar | tr -d '[A-Za-z]'

but these seem like a hammers to crack a nut. I've tried

# testvar="AbcDef123"
# echo ${testvar##[^0-9]*}
AbcDef123
# echo ${testvar##[A-Za-z]*}

#

but it's not returning what I want, as you can see. I tried

# echo ${testvar%%[^0-9]*}
AbcDef

which shows that it's interpreting [^0-9] as 09 and '^', not 'not a number' as I wanted.

Any ideas?
Thanks

Ceci n'est pas une signature
Columb Healy

 

[PHV]

What about this ?
echo ${testvar##*[!0-9]}

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[feherke]

Hi

echo ${testvar##+([A-Za-z])}

Tested with (pd)[tt]ksh[/tt] and [tt]bash[/tt].

Feherke.

http://rootshell.be/~feherke/

 

[columb]

Thanks guys - I knew you two would come through!

What confuses is that where the regex for expr is, for example, [0-9]*, for the ksh variables its *[0-9], not to mention the different methods of negation.

Ceci n'est pas une signature
Columb Healy

 

[PHV]

You confuse regex with shell pattern

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886