Shell Programming and Scripting

while read line
  do COD=${line:0:4}; DOK=${line:4:16}; PRN=${line:20:20}; QTY=${line:92:15}
     echo "$COD", "$DOK", "$PRN", "$QTY"
     done < file
CSG2, FV6VFF, , 
ARD1, 96738649ES      ,                    1, 18            P

OIFS=$IFS
IFS=$'\n'
set `sed -nE \
  -e '/^CSG2/s:^.{4}(.{15}).*:\1:p' \
  -e '/^ARD1/s:^.{4}(.{35}).{53}(.{14}).*:\1\n\2:p' infile`
echo "dock \"$1\" part \"$2\" qty \"$3\""
IFS=$OIFS

IFS=$'\n' V=(`sed -nE \
  -e '/^CSG2/s:^.{4}(.{15}).*:\1:p' \
  -e '/^ARD1/s:^.{4}(.{35}).{53}(.{14}).*:\1\n\2:p' infile`)
echo "dock \"${V[0]}\" part \"${V[1]}\" qty \"${V[2]}\""

dock "FV6VFF         " part "96738649ES                         " qty "18            "