02-05-2009
How to get a login name of a person who used 'su' and act with different user-name?
I need to realize the user login name after he/she used the 'su' command to log under another name (for specific privileges.)
I am on SunOS v5.6, and here by now I could not find a way to figured it out.
In another Thread I've get an advise from Linux user to use 'ps afxj' that display a processes tree and shows up the originated 'su' command.
But on Sun I could not find a way to get something simular that would display the 'su'
The main reason for that task is to use the 'write' comand to send a message to people's terminal who is loged by 'su' as a specific user.
I have a script that runs background and monitoring some condition. I would like it time to time to send some message.
It is started by someone, who used 'su', but could after that close the seccion and even log off completely.
Although all the time someone has use the specific user-name, loged by 'su' - it is a production control name.
I need the script to be able send a mesage directly to anyone who now is under that production-control-logname.
How that could be done in Sun UNIX?
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CHSH(1) User Commands CHSH(1)
NAME
chsh - change login shell
SYNOPSIS
chsh [options] [LOGIN]
DESCRIPTION
The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
the login shell for her own account; the superuser may change the login shell for any account.
OPTIONS
The options which apply to the chsh command are:
-h, --help
Display help message and exit.
-s, --shell SHELL
The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.
If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.
NOTE
The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
back to its original value.
FILES
/etc/passwd
User account information.
/etc/shells
List of valid login shells.
/etc/login.defs
Shadow password suite configuration.
SEE ALSO
chfn(1), login.defs(5), passwd(5).
User Commands 06/24/2011 CHSH(1)