1 #!/bin/sh

     2 

     3 if [ -z $1 ]; then

     4   echo "Where dictionary?"

     5 fi

     6 

     7 if [ "$1" = --help ]; then

     8   echo find-new-words DICTIONARY

     9   echo   words read from stdin

    10   echo

    11   echo find-new-words DICTIONARY WORDS_FILE

    12   echo   words read from file

    13   exit 0

    14 fi

    15 

    16 dictionary=$1

    17 

    18 if [ -z "$2" ]; then

    19   while true; do

    20     if read word; then

    21       if grep $word $dictionary >/dev/null; then

    22         :;

    23       else

    24         echo $word;

    25       fi

    26     else

    27       exit 0

    28     fi

    29   done

    30 else

    31   while true; do

    32     if read word; then

    33       if grep $word $dictionary >/dev/null; then

    34         :;

    35       else

    36         echo $word;

    37       fi

    38     else

    39       exit 0

    40     fi

    41   done <$2

    42 fi