Mail Script

abakhiet · 07-10-2010, 01:53 AM

Hola,
i need to ask about how can i make some script by bash that can make update to my server and then send a confirmation mail to my mail box in gmail ???
i have some recommendation about that
=================
!/bin/bash
yum -y update | mail -s "Update Server" mybox@gmail.com
=================
this script was activated, but it seems that it has some problems, it gives me this error "/usr/sbin/sendmail: Exec format error"
i need to say that i can send/receive mails by thunderbird and squiirrelmail and all is fine, but i don't know what happens to my termainal mail agents

my server is:
Linux Centos 5.5
Postfix mail server
Thanks in advance ...

smoker · 07-10-2010, 02:49 AM

firstly
!/bin/bash
should be
#!/bin/bash

secondly, try using the full path to the mail command (/bin/mail ?)
To find out what it is use

Code:

which mail

Thirdly, this script must be [owned by / run as] root if you are to run yum update.

As root, create the script and chmod +x <scriptname>
Then copy the script to /etc/cron.daily/<scriptname>

Also, the parameters to yum may be causing problems when piped through mail.
Easy fix is to create a script called my_update containing ONLY

Code:

#!/bin/bash
yum -y update

and chmod +x my_update
Then your original script in cron.daily would become

Code:

#!/bin/bash
cd /path/to/my_update/script
./my_update | /bin/mail -s "Update Server" mybox@gmail.com

abakhiet · 07-10-2010, 09:48 AM

thanks a lot,
I need to say that you are right in the first qoute, but in the others i need to say that it was works fine, but something happeans and it stops and gives me that error.
please help !!!

smoker · 07-10-2010, 10:43 AM

I don't understand what you are saying. "It was works fine" ?

What did you do when you installed Postfix ? It appears that sendmail is broken.

abakhiet · 07-10-2010, 12:53 PM

Thanks for your reply,
i mean that my mail server works fine, i can send/receive mails using my mail client "ThunderBird", but i can't do that using my termainal mail clients like Mail or Mutt

i wish that i clearify my idea

abakhiet · 07-11-2010, 09:58 AM

Really i think i find the analogy of the problem, but i need to know how to make it.
I think that the termainal commands for mail service still uses sendmail, but today i'm using postfix.
so, i need to know how to make it uses postfix

smoker · 07-11-2010, 12:50 PM

Postfix has it's own program called sendmail for compatibility with programs that need sendmail access. Either it wasn't installed properly or it has been broken somehow. I would check your postfix install.

abakhiet · 07-11-2010, 02:32 PM

Quote:

Originally Posted by smoker

Postfix has it's own program called sendmail for compatibility with programs that need sendmail access. Either it wasn't installed properly or it has been broken somehow. I would check your postfix install.

cool, please tell me what files you want to see, by the time, i need to say that i make some relay over my provider mail server to send mail through his mail server...

smoker · 07-11-2010, 02:57 PM

I don't use postfix, so I don't want to see any files. I suggest you reinstall postfix. You can check the postfix config files for specific settings, but I would agree with this persons comment.

Quote:

'Exec format error' isn't specifically a sendmail error. That's the
OS telling you that you've tried to run a file which isn't a binary
executable.

Also read the thread "Post fix error" found here.