There are 4 remote hosts that I have stored in an array. A ssh trust has been created from the local host to each of the remote hosts.
I am trying to ssh to each of the servers in a for loop as shown below.
Code:
declare -a host
host[${#host[@]}]="server1"
host[${#host[@]}]="server2"
host[${#host[@]}]="server3"
host[${#host[@]}]="server4"
for host in "${host[@]}"
do
ssh -qtt user@${host} "sh -s "${version}"" < test.sh
done
test.sh is a file on the local server that I am running on the remote host after I ssh to the remote host. But it is terminating after the first iteration. If I use -n switch it prompts me for password in the second iteration.
I am able to iterate successfully through the array if I specify the commands as mentioned below.
Code:
for host in "${host[@]}"
do
echo $host
ssh -qtt user@${host} "cd /build && cp -p web.zip web.zip_${version} && rm -rf test && unzip /build/web.zip && cd /bin "; done;
However, if I try to add the commands in a separate file called test.sh and stream it to ssh as shown below, it exits after the first iteration. Pressing Ctrl-C manually triggers the next iteration.
Code:
for host in "${host[@]}"
do
ssh -qtt user@${host} "sh -s "${version}"" < test.sh
done
I repeat: You cannot put double quotes inside double quotes that way.
This is wrong:
Code:
"sh -s "${version}""
This would be more correct:
Code:
"sh -s '${version}'"
I just realized, however -- your test.sh probably uses the ${version} variable, which is why you are feeding it into sh, yes? You want it to carry over. But arguments to sh -s don't work that way, you don't get the names, just $1 $2 $3. Not to mention, you need -- if you want it to assume the following are arguments. Try this:
Code:
$ sh -s -- a b c
$ echo $1
a
$ echo $2
b
$ echo $3
c
$ exit
$
...and your script should be using $1 and not ${version} .
I suspect you can omit the -tt completely, too. I see no commands in there that actually need a terminal, and throwing one into the mix when not needed seldom helps.
Last edited by Corona688; 09-12-2013 at 01:25 PM..
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