What is the command for finding the last 3 times the user had logged into the system?
 

Hello

I am a newbie to linux/Unix, and was wondering how we could find the last 3 logins that the user had made into the system?

Help at the earliest would be really appreciated.

Thanks Heaps

Cheers
John

you can use the last command to find a list of logins. Here is a command that will
give you the last 3 logins

# last|grep <username>|head -3

what is the command for setting what you deem to be a safe umask
 

hello

thanks heaps ppuru. That helped a lot.

I got one more doubt, i really do not understand umask thing.

What is the command for setting what you deem to be a safe umask and why is this umask suitable with reference to sort of system you would use it in.

well the obvious command is umask
The default is 0022 in most cases which creates files with 644 (rw-r-r). RedHat uses 0002 and creates rw-rw-r. 0666 - 0022=0644 which is -rw-r--r--