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UNIX for Dummies Questions & Answers
To start login/programms on boot up
Post 24664 by Kelam_Magnus on Tuesday 16th of July 2002 11:01:54 AM
07-16-2002
This can be very OS dependent. On my HPUX system, you would put a script in /sbin/init.d.
To start up a script at boot time, create a link in the run level directory that you want it to start up at. In my case that is runlevel 3. I would put a link in /sbin/rc3.d linked to the file in /sbin/init.d with an Sxxxfilename. Where xxx is a 3 digit number. and a Kxxxfilename in a lower level run level directory to kill the script as the box shuts down.
Here is an example:
cd /sbin/init.d
touch startup.sh # you would have a real script here.
cd /sbin/rc3.d
ln S723startup.sh /sbin/init.d/starup.sh
cd /sbin/rc2.d
ln K723startup.sh /sbin/init.d/startup.sh
You will need to look at another script in /sbin/init.d to see how to use the stop and start functionality for this to work. This should be a fairly common standard for most UNIX OSs. The directories may be different but the concept is vaild.
To start up a script at boot time, create a link in the run level directory that you want it to start up at. In my case that is runlevel 3. I would put a link in /sbin/rc3.d linked to the file in /sbin/init.d with an Sxxxfilename. Where xxx is a 3 digit number. and a Kxxxfilename in a lower level run level directory to kill the script as the box shuts down.
Here is an example:
cd /sbin/init.d
touch startup.sh # you would have a real script here.
cd /sbin/rc3.d
ln S723startup.sh /sbin/init.d/starup.sh
cd /sbin/rc2.d
ln K723startup.sh /sbin/init.d/startup.sh
You will need to look at another script in /sbin/init.d to see how to use the stop and start functionality for this to work. This should be a fairly common standard for most UNIX OSs. The directories may be different but the concept is vaild.
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LEARN ABOUT OPENSOLARIS
listusers
listusers(1) User Commands listusers(1) NAME
listusers - list user login information SYNOPSIS
listusers [-g groups] [-l logins] DESCRIPTION
Executed without any options, this command lists all user logins sorted by login. The output shows the login ID and the account field value from the system's password database as specified by /etc/nsswitch.conf. OPTIONS
The following options are supported: -g groups Lists all user logins belonging to group, sorted by login. Multiple groups can be specified as a comma-separated list. -l logins Lists the user login or logins specified by logins, sorted by login. Multiple logins can be specified as a comma-separated list. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------------------------------------+ |ATTRIBUTE TYPE ATTRIBUTE VALUE | |Availability SUNWcsu | +-----------------------------------------------------------+ SEE ALSO
nsswitch.conf(4), attributes(5) NOTES
A user login is one that has a UID of 100 or greater. The -l and -g options can be combined. User logins will only be listed once, even if they belong to more than one of the selected groups. SunOS 5.11 18 Mar 1994 listusers(1)