if statement unix shell script

Question

I am using if statement to check for a condition and assign values. A mail will be sent after that. I executing the script ( bash ) but nothing really happens and I have to exit; could anyone tell me what I am doing wrong?

if [ $var -eq 0 ]
then
subject="there are zero issues"
else
subject="there are issues"
fi

mail -s "$subject" [email protected]

Can you do an echo $subject after the fi but before the call to mail? What do you see? — Tim Biegeleisen
– Tim Biegeleisen, Commented Mar 27, 2015 at 3:48
i did not specify the message body - thats why it was not working. — Nidhin_toms
– Nidhin_toms, Commented Mar 27, 2015 at 4:01

Tim Biegeleisen · Accepted Answer · 2015-03-27 03:55:37Z

2

The Unix mail command is waiting to receive a message body to send, but you have not provided one in your script. Try this:

$ mail -s "$subject" [email protected] < /home/user/yourmessage.txt

where /home/user/yourmessage.txt contains some message you wish to include in the email.

answered Mar 27, 2015 at 3:55

Tim Biegeleisen

526k32 gold badges323 silver badges399 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Nidhin_toms Over a year ago

One more thing - I am getting nothing in the subject line - when I echo $subject i do get a result , so not sure why it is not appearing in the email subject

Jonathan Leffler Over a year ago

Maybe you need to use mailx instead of mail? At the least, check your mail program to be sure it supports -s "subject" notation. (Mac OS X has both mail and mailx, but both support -s "subject'.) There aren't many other reasons why it would go wrong, unless you've done something very peculiar?

Tim Biegeleisen Over a year ago

I agree with Jonathan. The syntax you have for including a subject is correct, unless of course your flavor of Linux doesn't support it.

Nidhin_toms Over a year ago

ok thanks guys - i will try to solve the subject issue - sending the mail was what I really needed!! thanks!!

Collectives™ on Stack Overflow

if statement unix shell script

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related