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Top Forums UNIX for Dummies Questions & Answers Need help with this class question Post 302788737 by kofine05 on Tuesday 2nd of April 2013 12:29:14 PM
Old 04-02-2013
Need help with this class question

Write a command line that will display a sorted list of logged in users. Just display the username and no other information. To accomplish this task you must use the sed command (The cut command is not allowed).

Been struggling with this question for a while now. Thanks for the help.
 

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RWHO(1) 						    BSD General Commands Manual 						   RWHO(1)

NAME
rwho -- who is logged in on local machines SYNOPSIS
rwho [-aHq] DESCRIPTION
The rwho command produces output similar to who(1), but for all machines on the local network. If no report has been received from a machine for 11 minutes then rwho assumes the machine is down, and does not report the users last known to be logged into that machine. If a user hasn't typed to the system for a minute or more, then rwho reports this idle time. -a Include all users. By default, if a user hasn't typed to the system for an hour or more, then the user will be omitted from the output. -H Write column headings above the regular output. -q ``Quick mode'': List only the names and the number of users currently logged on. When this option is used, all other options are ignored. FILES
/var/rwho/whod.* information about other machines SEE ALSO
finger(1), rup(1), ruptime(1), rusers(1), who(1), rwhod(8) HISTORY
The rwho command appeared in 4.3BSD. BUGS
This is unwieldy when the number of machines on the local net is large. BSD
September 30, 2005 BSD
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