How can i send mail to multiple addresses in same domain in bash?

Shell Programming and Scripting
1

Suppose i have a txt file that is the list of the addresses,something like:

lala0045 john james
lala0234 george james

and i want to send an email to lala0045@blabla.com and lala0234@blabla.com,the same domain...what is the exact syntax i should use in my script?
there is a command system(???) but i dont know how to use that...
i have tried a syntax i found using mail,mailx,mailto but no result occured...
any ideas?

2

Please try:

mail -s "<subject>" "<delivery list>" "matter"

example:

mail -s "my subject" "id1@c.com id2@c.com id3@c.com" "Hey! i m mailing u all"

try this as hard coded first, then v ll get ur address automatically. Check if the mail comes. Currently m not on a UNIX system so u ll have to try it and let me know if it worked for u unless somebody else provides the complete solution.

Regards,
Hkansal

3

A really dirty solution but will get you going is :-

#!/bin/bash

file="inputfile"
domain="blahblah.com"

for local in $(awk '{print $1}' <$file)
do
        address_list="$address_list $local@$domain"
done

echo "address list is [$address_list]"

echo "Hello this is body of the email" | mailx -s "Subject" $address_list

Obviously that doesn't do any variable checking or anything.

If you want to code it with checks you may find this reg ex useful i spent ages doing the other day to validate a space separated email list. Just be aware its not totally rfc compliant as only accepts -_ as special characters and not the full range you should.

if [ -n $(echo $address_list | awk '/^(\ )*([A-Za-z0-9_-]+(\.[A-Za-z0-9_-]+)*@([A-Za-z0-9_-]+\.)+[A-Za-z]+((\ )+[A-Za-z0-9_-]+(\.[A-Za-z0-9_-]+)*@([A-Za-z0-9_-]+\.)+[A-Za-z]+)*)(\ )*$/ {print}')" ];then
       # Valid email list
       mailx -s "subject" $address_list < ./email_contents
else
       # Email list problem
       echo "WARNING: Email address list problem [ $address_list ]"
       ....other stuff....
fi
4

You can use a mail alias in /etc/aliases, then just send the mail to the alias:

 # cat /etc/aliases
 maillist: user1@blah.com,user2@blah.com,user3@blah.com

When you send mail to maillist, user1, user2, and user3 will all get it.

Quick edit: maillist can be any name.

5

thank you very much for your answers.i wanted to tell you that i have a bunch of files that contain the first half of the address(that is without the @domain part)so ,each time one of these files is opened, a different first part is read.the domain is the only thing that remains the same.so i need the syntax of the mail command that reads addresses from the fisrt column of a file and then attaches the '@domain' part.thank you again very much;)

//my mistake.didn't have mail installed on my ubuntu.so avascript i tried yours which is closer to what i want to do,but although it doesn't have any mistake i see no email on my mailbox(i send to my self in that domain in order to check the algorithm)...

6

That may be your mail gateway or server mail settings.

Just try this to start with from command line before any scripting.

# echo "Mail test" | mailx -s "Mail Subject" <your_email@address.com>

Obviously removing the < > brackets.

Try typing mailq to see if mail is queued. Also have you configured your mail software on the server to work?

Cheers

7

actually the only thing i have done as far as mail is concerned,is to install mailx on my ubuntu...:smiley:

//tried this from my command line but still no result in my inbox...

when i type mailq it says 'exim:permission denied'...

8

Yep. Sounds like exim configuration required.

9

ok i ll have to look into that cause i have noooo idea on the matter:D
thnks a lot for your help!!:wink:

10

I could help with exim a bit if you like....but i'm a new to this forum so not sure if its correct place seeing as this is for shell script help.

11

hmm i am new too...but the bottom line is that i must link mailx with the desired domain?