UNIX for Dummies Questions & Answers

hello all,

so i'm working on a script, and part of it is to display the log info of the current logged on users,

1- full name
2- last log-in time
3- source ip address

i used who command to find the user ID then grep the full name and the last log in time.

but i can't find a command that would show the source ip for the current logged on users.

thanks alot

The command "who" shows the ip as well, check the last column.

The who utility displays information about currently logged in users. By
default, this includes the login name, tty name, date and time of login
and remote hostname if not local.


Check

Code:

$ who -H

to get column headings displayed.

oh, I'm currently running unix on my laptop, so when i run the who command i get,

user name tty1 date time (:0)

I'm assuming the (:0) would be the IP on a computer connected to a network?

** Edited **

i used the $ who -H command, and got COMMENT as the head for (:0)

i looked up the man pages, but it didn't mention anything about IP, is it possible that
this is a difference in Unix versions, or is the COMMENT column the IP address?

I'm not sure if it will be the IP or the hostname of the connected user.

assuming i got the host name, is there a way to find the IP using it?

Maybe

Code:

ping -c2 hostname | grep from | cut -d' ' -f4 | cut -d: -f1 | uniq

thank you for the help