++ df -kh
++ grep oraarch
++ awk '{ print$4 " " $5 }'
+ mountpoint='
1% /oraarch'
+ '[' 1% /oraarch -ge 50 ']'
./rman_backup.sh: line 4: [: too many arguments

mountpoint=(df -kh|grep \oraarch|awk '{ print$4 " " $5 }')
threshold=20
if [ $mountpoint -gt $threshold ]; then

./rman_backup.sh: line 3: syntax error near unexpected token `|'
./rman_backup.sh: line 3: `mountpoint=(df -kh|grep \oraarch|awk '{ print$4 " " $5 }')'