Send a mail to multiple users

Shell Programming and Scripting
1

I have a file 1.txt which has 3 mail ids as below:

 
Maillist=abc@gmail.com def@gmail.com rcg@gmail.com

Now I want to write a script which will read this file and send the mail to all the users present in this file.

2

So what have you tried so far?

3

I know the mail command to send the mail to one user.
But i am not sure how to rad a file having multiple mail ids and then send the mail to all thise mail ids present in that file.
cat mailbody.txt | mail -s "abc" abc.gmail.com

4

A bash approach:

#!/bin/bash

while read line
do
        [[ "$line" =~ "^Maillist" ]] && mail_ids="${line##*=}"

done < 1.txt

mail -s "Subject" "$mail_ids" < mailbody.txt
5

Can we use some approach where we grep the keyword Maillist= and use cut command to delete everything except mail ids and then send the mail..
Something like below:

 
Email=`grep "MailList=" /1.txt | cut -f2 -d=`;
mail -s "Subject" "$Email" < mailbody.txt

But above is not working.

6

if each line contains 3 email id then try something like this

#!/bin/bash
while read line
         do
               IFS='= ' read  f1 f2 f3 f4<<<"$line"
               echo $f2 $f3 $f4
               mail -s "Hello" $f2
               mail -s "Hello" $f3
               mail -s "Hello" $f4
done <"1.txt"
7

I think you can add the address list as is as arguments to mail. Read the man page.