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

ttunell · #1 (**permalink**) 07-22-2008

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!

Ikon · #2 (**permalink**) 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)}'`

ttunell · #3 (**permalink**) 07-22-2008

That works great! Many thanks!

Annihilannic · #4 (**permalink**) 07-23-2008

Another method using no pipes:

Code:

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

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