Passing each line of the file content as arguments

I need to pass each line content  of a file as variable value,filecontents are:

filename1  size1
filename2  size2
filename3  size3

and the when using for loop, the first value passed should be "filename1 size1" and after the first loop next value passed should be "filename2 size2" etc.

Thanks
KOTTUSRIAsked:
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Tim_UtschigCommented:
If you need them two be passed as two arguments, use:

    xargs -l command < filename

If you need them to be passed as one argument, use:

    xargs -i command {} < filename

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Tim_UtschigCommented:
Or if you need a loop:

cat filename | while read LINE; do
    # commands using $LINE
done
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