Information on users

[S N Raju]

Hi all,

Is there any system call which gives the list of all the users in the system..If so, Can someone help me on this ? as in other operating systems, there is "dispuid" , is there any system call similar to it which gives the users list?

Thank u all

[Rajeev Shukla]

All user information on HPUX is maintained in utmp, wtmp, btmp files and they can be accessed by the structure defined in utmp.h file
Have a look at the man pages of utmp(4)and getutent()

[RAC_1]

There are many commands
who -Hu -> current logins on system
lastb -> previous unsuccessful logins.
last -> previous successful logins
logins -u -> user accounts on system
listusers -> list users

See man pages of all commands to know more.

[S N Raju]

Thanks for ur help..

I was able to get through logins system call. Thanks all for ur help..

Thank u...

[S N Raju]

Thank u all for ur help, I was searching for a sample program on utmp structure which can give me the list of users on the system.if anyone can help me on that please forward me links where i can get information..

Thanks u all
raju

[Michael Steele_2]

Here you go:

http://docs.hp.com/en/B2355-60103/getut.3C.html

[S N Raju]

There is some problem with the utmp structure, it returns only the currently logged in users and it can have duplicate values . The system calls logins is executable only in the root,but not in the non-root.. I need a system call where I can get all the user names list in the system both in the root and non-root...

Can anyone suggest a solution on this....Awaiting for reply..

Thank u all

[Rajeev Shukla]

The problem is, you are not motivating people who answer your thread!!

[S N Raju]

Hi all,

Sorry that i was unable to motivate you all for patiently answering me .Whatever information i get from you all is one other way useful for me, to broaden my knowledge on the system.

Thank u all for ur help and support..