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Full Discussion: How to write a UNIX script to send a mail to the respective individual users about their groups?
Top Forums UNIX for Beginners Questions & Answers How to write a UNIX script to send a mail to the respective individual users about their groups? Post 302997819 by Don Cragun on Saturday 20th of May 2017 02:57:53 AM
Old 05-20-2017
For something that would be more portable to a system where the groups utility only accepts one operand, the user database on your system is kept in the file /etc/passwd (which is not always true), and assuming that every user has a mail account with their login name as their mail address on that machine (which is not always true), you could also try:
Code:
cut -d: -f1 /etc/passwd | while read user
do	echo "Mailing to $user"
	groups "$user" | mail -s "$user's groups" "$user"
done

 

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LEARN ABOUT HPUX

listusers

listusers(1)						      General Commands Manual						      listusers(1)

NAME

       listusers - display user login data

SYNOPSIS

       groups] logins]

DESCRIPTION

       The  command  displays  data  concerning user logins.  The output shows the user login and the comment field value (for example, user name,
       location).  The default displays data about all user logins.

   Options
       The command supports the following options:

	      Display only users who have
			     groups, as their primary group. Use with the option.

	      Display only users who have
			     groups, as their supplementary group.  Use with the option.

	      Display all users belonging to
			     groups, sorted by login.  A comma separated list specifies multiple groups.

	      Display the requested
			     logins.  A comma separated list specifies multiple logins.

	      Display only users belonging to the specified repository,
			     either for NIS or users.

       A user login has a UID of 100 or greater.

       When the and options are combined, a user login is only displayed once, even though the login may belong to multiple specified groups.

EXAMPLES

       List all user logins.

       List all user logins in the group and the users removing all duplicates.

       List all users who have as their primary group.

       List all users who have as their supplementary group.

       List only local user logins.

       List only NIS user logins.

FILES

SEE ALSO

       passwd(1), logins(1M), group(4), passwd(4).

STANDARDS CONFORMANCE

																      listusers(1)
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