How to manipulate the output ???

csaha · December 23, 2005, 4:49am

In an operation, I have output like 22562K [(some no)K] I want to manipulate this and want to perform some mathematical operations on that, any idea how can I get the digit no?

mahendramahendr · December 23, 2005, 4:53am

pls do check other posting before posting new one..

here is the previous post to remove the last character :

ranj1 · December 23, 2005, 5:03am

val=22562K
echo $val | tr -cd [0-9]