here is the actual code. note that testing1 consist of couple of line lets say asdaskljl64x3sdfsd is the first line of the testing1 file
#!/bin/tcsh
foreach filename (`cat testing1`)
set string=$filename
set depth=`echo "$string" | sed -e 's/^[^0-9]*\([0-9][0-9]*\).*/\1/'`
set width=`echo "$string" | sed -e 's/.*\([0-9][0-9]*\)[^0-9]*$/\1/'`

if ($depth==64) then

set addr_bits=5
endif

echo "addr_bits:$addr_bits"
echo "depth:$depth"
echo "width:$width"

end