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Shell Programming and Scripting

2 CMD results on the same line while rexing in a loop

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Top Forums Shell Programming and Scripting 2 CMD results on the same line while rexing in a loop
# 8  
Old 10-09-2009
Hi.

Try reading your file from another descriptor.

For example:

Code:
exec 3< list

while read i <&3
do
    ans=`rexsh $i -l bozo -t10 uptime | cut -d" " -f6`
    echo "$i|$ans" >>bootTimes.out

        if  [ $ans -ge 120 ]
         then
                echo "$i|$ans" >>bootThese.out
         else
                echo "$i|$ans" >>bootList2Recent2Work.out
        fi

done


This may or may not help, but I know that when I have something like:
Code:
  while read SERVER do;
    ssh $SERVER some_command
  done < servers.txt

It only does the first one (I guess ssh closes standard input or something when it's done(??))
# 9  
Old 10-09-2009
Quote:
Originally Posted by scottn

This may or may not help, but I know that when I have something like:
Code:
  while read SERVER do;
    ssh $SERVER some_command
  done < servers.txt

It only does the first one (I guess ssh closes standard input or something when it's done(??))
You guess right. It is easily overcome by using the -n option:
Code:
while read SERVER
do
  ssh -n $SERVER some_command
done < servers.txt
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