How to send mail using mailx with just subject and no body of message

[Sammy_2]

Trying to send mail with just the subject to root@abc.com using mailx.
/usr/bin/mailx -s "`uname -n` Problem running ioscan status=$?" root@abc.com
But it hangs and expect me to enter body of message?
How do you fix it from within the script(so that I can use mailx or sendmail ) I just wanna send the subject and no body of the message. Please see simple script below.

=============cut here====================
#!/usr/bin/ksh
/usr/sbin/ioscan
if [ $? -eq 0 ];then
echo "It worked"
else
echo "Does not work"
mailx -s "`uname -n` Problem running ioscan status=$?" root@abc.com
fi
================cut here===================

[S.K. Chan · Accepted solution]

Do this instead ..
mailx -s "`uname -n` Problem running ioscan status=$?" root@abc.com < /dev/null

[John Poff]

Hi,

I just tried this (on an 11.00 box) and it worked:

mailx -s "Test e-mail with no body" myemail

JP

[Kellogg Unix Team]

Try this -

mailx -s "Subject" root@abc.com < /dev/null

...Manjeet

[Sammy_2]

Thanks to S.K.Chan, Kellogg and John. Worked fine. Appreciate it.