Homework & Coursework Questions

if [ -d directory ]
then
df -hs directoryname
else 
echo Directory not found
fi

if [ -d "$1" ]; then
  FREE=$(df -k "$1" | <some parsing to get free space field>)
  [ $FREE -le $2 ] && echo Not enough space
else
  echo Directory does not exist

for dspace in `df -k /filesystem |tail -1 |awk '{print $1}'`
do
if [ $dspace -le "80" ]
then 
echo $dspace % available 
else 
df -k /filesystem > /tmp/fsspace 
cat /usr/local/bin/fswarn.txt /tmp/fsspace > /usr/local/bin/fswarning.txt 
/usr/bin/mailx -s "FS exceeded 80% and is at $dspace % FULL needs attention" mymail@mydomain.tld < /usr/local/bin/export
warning.txt
fi

for dspace in `df -k /filesystem |tail -1 |awk '{print $1}'`

/Users/scott/scripts/tmp $ df -k .                           
Filesystem   1024-blocks      Used Available Capacity  Mounted on
/dev/disk0s2   976426672 838053612 138117060    86%    /

fsfile=/tmp/fsspace.txt  # set it here, so I don't have to change it in more than one place
df -k $1 > $fsfile
dspace=$(tail -1 $fsfile | awk '{print 100-$5}')  #100% - % used = % available
if [ $dspace -lt $2 ]; then
  echo "$dspace % available"
else
   cat /usr/local/bin/fswarn.txt /tmp/fsspace | /usr/bin/mailx -s "FS exceeded $2% ....."  mymail@mydomain.tld
fi

if [ -d "$1" ]; then
  FREE=$(df -k $1 | |awk 'NR==2{print 100-substr($5,1,length($5)-1);}')
  [ $FREE -le $2 ] && echo "Not enough space, ${FREE}% left"
else
  echo "Directory $1 does not exist"
fi

# ssh root@oraserv1
/ # cd /oracle
# df .
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/ora001vg-ora001lv
                       8252856   4752396   3081236  61% /oracle

/oracle # df -P .
Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/mapper/ora001vg-ora001lv   8252856   4752396   3081236      61% /oracle

/oracle # df . | sed '$!d'  # from the link, search "print the last line of a file"
                       8252856   4752396   3081236  61% /oracle

$ echo 22% | awk '{print 100-$1}'  
78