Shell Programming and Scripting

ssh $i df -h|grep -ve Use | awk '{ if ( substr( $5, 1, length($5) - 1) > 80 )  echo -n "-----\n"$5"   "$6 ; else echo -n "------\nOK!" }' | sort -u

if [ $j -gt 80 ]
                   then
                         echo $j"%    " $name
                   else
                         echo "\nOK!\n"
                   fi

df -h | awk '
        {
                used = $(NF-1) + 0
                if ( used > 80 )
                {
                        print used "%", $NF
                        flag = 1
                }
        }
        END {
                if ( !flag )
                        print "OK"
        }
'

df | awk        'NR>1   {sub("%","",$5)
                         print $5 "%", $6
                         flag=flag||($5>80)
                        }
                 END    {if (!flag) print"OK"}'