UNIX for Beginners Questions & Answers

#!/bin/bash
#  script to send an email message to the user specified on the command line if
# any of the file systems at more than 60% of capacity.

df -H | grep -vE '^Filesystem' | 'none' | awk '{ print $1 " " $5 }' | while read fsout
do
  echo "$fsout"
  partition=$(echo "$fsout" | awk '{ print $2 }' )
  usage=$(echo "$fsout" | awk '{ print $1 }' | cut -d'%' -f1)

  if [ $usage -ge 90 ]
  then
    echo "CRITICAL WARNING!!: Filesystem \"$partition\" at "$usage"% of capacity" |
    mail -s "CRITICAL WARNING!!: Filesystem \"$partition\" at "$usage"% of capacity" paul_peterson@student.uml.edu

  elif [ $usage -ge 60 ] && [ $usage -lt 90 ]
  then
    echo "Warning!!: Filesystem \"$partition\" at "$usage"% of capacity" |
    mail -s "Warning!!: Filesystem \"$partition\" at "$usage"% of capacity" paul_peterson@student.uml.edu
  fi
done

./fsc.sh: line 4: $'\r': command not found
./fsc.sh: line 16: syntax error near unexpected token `elif'
'/fsc.sh: line 16: `  elif [ $usage -ge 60 ] && [ $usage -lt 90 ]