#!/bin/csh -f
# Two ways to work with a sequence of files with fixed length digits (here 3 wide)
# Try it out: source cshlooping 4

echo easy way \(count\)
foreach numb ( `count -digits 3 1 $1` )
  echo File$numb.dat
end

echo 
echo robust way \(arrays\)
set seq = ({0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9})
set final = $1
@ final += 1
foreach numb ($seq[2-$final])
  echo File$numb.dat
end