Split a file

dsshishya · #1 (**permalink**) 07-22-2009

Hi,

I want to split a file into 2 Files. The First 2 lines should be the First File with a Prefix to it and the rest of the file should be the Second with a Prefix.
When i am using the below command it gives me an error.
Please help.

Code:

head -2 $FILE_NAME >Header_$FILE_NAME
CNT=`wc -l $FILE_NAME`-2
tail -$CNT $FILE_NAME >Detail_$FILE_NAME

Thanks,

pludi · #2 (**permalink**) 07-22-2009

Probably because wc not only outputs the line count but also the filename. That, and you're not evaluating your expression. The CNT line should probably look something like this:

Code:

CNT=$(( $( wc -l | cut -d' ' -f1) - 2 ))

Or, much simpler:

Code:

sed -ne '1,2p' $FILE_NAME > Header_$FILENAME
sed -ne '3,$p' $FILE_NAME > Detail_$FILENAME

dsshishya · #3 (**permalink**) 07-22-2009

Thanks Pludi....it works.....

akrathi · #4 (**permalink**) 07-22-2009

You can make this script work after adding the third line
Thanks
Ashok

head -2 $FILE_NAME >Header_$FILE_NAME
CNT=`wc -l $FILE_NAME`-2
CNT=`echo $CNT | awk '{print $1 }'`
tail -$CNT $FILE_NAME >Detail_$FILE_NAME

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