UNIX for Beginners Questions & Answers

sytnax error near unexpected token if

 if [ -n $word ] then

cat text.txt | /path/mapper.sh

hi hi how how are you

while read line
do
 for word in $line do
 if [ -n $word ] then
	wcount=`echo $word | wc -m`;
	wlength=`expr $wcount - 1`;
	letter=`echo $word | head -c1`;
	echo -e "$lettert$wlength";
 fi
done
done

 for word in $line do
 if [ -n $word ] then

 for word in $line
 do
   if [ -n $word ]
   then

 if [ -n "$word" ]; then

 if [[ -n $word ]]; then

wcount=`echo $word | wc -m`

wcount=$(echo $word | wc -m)

var=$(command1 $(command2 | command3) | command4)

letter=`echo $word | head -c1`

letter="${word%${word#?}}"

while IFS= read line; do
  for word in $line; do
      if [ -n $word ]; then
          echo "${word}: ${#word}"
      fi
  done
done < "$@"

/path/to/mapper.sh /path/to/text.txt

while IFS=  read line; do
    for word in $line; do
        [ -n $word ] && echo "${word}: ${#word}"
    done
done < "$@"

for word in $(cat text.txt); do
   [ -n $word ] && echo "$word ${#word}"
done