parameter 개수 확인

root@cnode04-m:~# ./test.sh a b

The number of arguments is: 2

fail

root@cnode04-m:~# ./test.sh a b c

The number of arguments is: 3

success

going...

root@cnode04-m:~# cat test.sh

echo "The number of arguments is: $#"

if [ $# -eq 3 ]

then

        echo "success"

else

        echo "fail"

        exit

fi

echo "going..."