How to use substr to return data into a shell script variable?


 
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# 1  
Old 07-22-2008
How to use substr to return data into a shell script variable?

I'm writing a shell script in which I need to be able to pull a portion of the file name out. I'm testing with the following code:

x="O1164885.DAT"
y=`ls -ltr *${x}|awk '{print substr($0,3)}'`
echo ${x}|awk '{print substr($0,3)}'
echo "y="$y

I can echo it to the screen just fine but I can't figure out how to store it back into a script variable.

Any help would be appreciated.

Thanks!
# 2  
Old 07-22-2008
which line are you truing to put in a var?


Im guessing thats what you wanted:
somevar=`echo ${x}|awk '{print substr($0,3)}'`
# 3  
Old 07-22-2008
That works great! Many thanks!
# 4  
Old 07-23-2008
Another method using no pipes:

Code:
somevar=`expr substr "$x" 1 3`

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