Finding missing tags

Shell Programming and Scripting
1

I have a list containing strings. All strings should have either "smp" or "drw" else it is considered an error. I have written this code below. Any better ideas to tackle this?

set fdrw = 0
set fsmp = 0
foreach f ($Lst)
  set fdrwtag = `echo $f | awk '/drw/'`
  set fsmptag = `echo $f | awk '/smp/'`
  if ($fdrwtag != "") set fdrw = 1  # Darwin tag detected.
  if ($fsmptag != "") set fsmp = 1  # Simplex tag detected.

  if (($fdrw == 0) && ($fsmp == 0)) then
    echo "\nERROR: $f  Does not contain 'drw' or 'smp'.\n"
    exit 1
  endif

  if (($fdrw == 1) && ($fsmp == 1)) then
    echo "\nERROR: $f  Contains both 'smp' and 'drw'.\n"
    exit 1
  endif
end

I have tried

set AierrLst = `echo $AfullNameLst | awk 'BEGIN {ORS="";RS=" "} !/drw|smp/'`
set nf = `echo $AierrLst | awk '{print NF}'`
if ($nf > 0) then
  foreach f ($AierrLst)
    echo "ERROR: $f  File name does not have 'smp' or 'drw' tag"
  end
endif

but I am getting

/drw: Event not found.

---------- Post updated at 02:41 PM ---------- Previous update was at 02:24 PM ----------

Fixed it, seems if I have a space after ! it works

set AierrLst = `echo $AfullNameLst | awk 'BEGIN {ORS=" ";RS=" "} ! /drw|smp/'`
2

Not sure about csh, but no fork/execvp needed in sh/ksh/bash:

for s in $list
do
 case "$s" in
 (*drw*|*smp*)
   good-processing
   ;;
 (*)
   bad-processing
   ;;
 esac
done