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Full Discussion: Passing file name to get uptimes
Top Forums Shell Programming and Scripting Passing file name to get uptimes Post 302607523 by Corona688 on Wednesday 14th of March 2012 04:33:24 PM
Old 03-14-2012
That's a useless use of backticks and not even correct syntax for that.

I'd try this:

Code:
# First column goes in server, all the rest go in OTHERSTUFF
while read SERVER OTHERSTUFF
do
        /usr/local/bin/ssh "$SERVER" printf "${SERVER}: " ';' uptime
done < /tmp/hosts.list

This will print the server's name on the server itself, then run uptime, doing everything in one neat operation with no backticks whatsoever. The quotes around the semicolon are mandatory -- without that, uptime will run locally instead of being considered part of the ssh command...
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LEARN ABOUT FREEBSD

ruptime

RUPTIME(1)						    BSD General Commands Manual 						RUPTIME(1)

NAME

     ruptime -- show host status of local machines

SYNOPSIS

     ruptime [-alrtu] [host ...]

DESCRIPTION

     The ruptime utility gives a status line like uptime(1) for each machine on the local network; these are formed from packets broadcast by each
     host on the network once every three minutes.

     If no operands are given, ruptime displays uptime status for all machines; otherwise only those hosts specified on the command line are dis-
     played.  If hosts are specified on the command line, the sort order is equivalent to the order hosts were specified on the command line.

     Machines for which no status report has been received for 11 minutes are shown as being down, and machines for which no status report has
     been received for 4 days are not shown in the list at all.

     The options are as follows:

     -a      Include all users.  By default, if a user has not typed to the system for an hour or more, then the user will be omitted from the
	     output.

     -l      Sort by load average.

     -r      Reverse the sort order.

     -t      Sort by uptime.

     -u      Sort by number of users.

     The default listing is sorted by host name.

FILES

     /var/rwho/whod.*  data files

SEE ALSO

     rwho(1), uptime(1), rwhod(8)

HISTORY

     A ruptime utility appeared in 4.2BSD.

BSD
								   March 1, 2003							       BSD
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