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Shell Programming and Scripting

How to manipulate the output ???

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# 1  
Old 12-23-2005
How to manipulate the output ???
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?
# 2  
Old 12-23-2005
pls do check other posting before posting new one..

here is the previous post to remove the last character :

https://www.unix.com/shell-programming-and-scripting/23945-how-pick-out-last-charactor-string.html
# 3  
Old 12-23-2005
try this
val=22562K
echo $val | tr -cd [0-9]
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