I am trying to copy a file on remote server using below expect script.
I cannot use scp or sftp etc.
#/usr/bin/expect
set timeout -1
spawn /usr/bin/ssh -q root#testserver cat /tmp/passfile > /tmp/localpassfile
expect "assword"
send "welcome1\r"
expect eof
Its not working.
But below command works fine when i execute on shell
ssh -q root#testserver cat /tmp/passfile > /tmp/localpassfile
You are now passing the output to /tmp/localpassfile on testserver. Try:
/usr/sbin/ssh -q root#testserver "cat /tmp/passfile" > /tmp/localpassfile
I'm ssh'ing to a remote server and running a command. This works fine.
sshpass -p password ssh user#192.168.0.1 /bin/bash << EOF
cd /usr
ls -lh
EOF
But I want to save the output of ls -lh to a file on the remote or local server.
I've tried the following but that doesn't seem to do anything locally or remotely.
sshpass -p password ssh user#192.168.0.1 /bin/bash << EOF
cd /usr
ls -lh > /home/user/filename
EOF
How do I do this ?
Thanks
UPDATE.
Quick update.. the live script will be running multiple commands and I only want the results of one command sending the the file. Thanks
I have a script which starts an ssh-connection.
so the variable $ssh start the ssh connection.
so $SSH hostname gives the hostname of the host where I ssh to.
Now I try to echo something and copy the output of the echo to a file.
SSH="ssh -tt -i key.pem user#ec2-instance"
When I perform a manual ssh to the host and perform:
sudo sh -c "echo 'DEVS=/dev/xvdbb' >> /etc/sysconfig/docker-storage-setup"
it works.
But when I perform
${SSH} sudo sh -c "echo 'DEVS=/dev/xvdb' > /etc/sysconfig/docker-storage-setup"
it does not seem to work.
EDIT:
Also using tee is working fine after performing an ssh manually but does not seem to work after the ssh in the script.sh
The echo command after an ssh of the script is happening on my real host (from where I'm running the script, not the host where I'm performing an ssh to). So the file on my real host is being changed and not the file on my host where I've performed an ssh to.
The command passed to ssh will be executed by the remote shell, so you need to add one level of quoting:
${SSH} "sudo sh -c \"echo 'DEVS=/dev/xvdb' > /etc/sysconfig/docker-storage-setup\""
The only thing you really need on the server is the writing though, so if you don't have password prompts and such you can get rid of some of this nesting:
echo 'DEVS=/dev/xvdb' | $SSH 'sudo tee /etc/sysconfig/docker-storage-setup'
i've set up my public and private keys and have automated ssh login. I want to execute two commands say command1 and command2 in one login session and store them in files command1.txt and command2.txt on the local machine.
i'm using this code
ssh -i my_key user#ip 'command1 command2' and the two commands get executed in one login but i have no clue as to how to store them in 2 different files.
I want to do so because i dont want to repeatedly ssh into my remote host.
Unless you can parse the actual outputs of the two commands and distinguish which is which, you can't. You will need two separate ssh sessions:
ssh -i my_key user#ip command1 > command1.txt
ssh -i my_key user#ip command2 > command2.txt
You could also redirect the outputs to files on the remote machine and then copy them to your local machine:
ssh -i my_key user#ip 'command1 > command1.txt; command2 > command2.txt'
scp -i my_key user#ip:'command*.txt' .
NO, you will have to do it separately in separate command (multiple login) as already mentioned by #lanzz. To save the output in local, do like
ssh -i my_key user#ip "command1" > .\file_on_local_host.txt
In case, you want to run multiple command in a single login, then jot all your command in a script and then run that script through SSH, instead running multiple command.
It's possible, but probably more trouble than it's worth. If you can generate a unique string that is guaranteed not to be in the output of command1, you can do:
$ ssh remote 'cmd1; echo unique string; cmd2' |
awk '/^unique string$/ { output="cmd2"; next } { print > output }' output=cmd1
This simply starts printing to the file cmd1, and then changes output to the file cmd2 when it sees the unique string. You'll probably want to handle stderr as well. That's left as an exercise for the reader.
option 1. Tell your boss he's being silly. Unless, of course, he isn't and there is critical reason of needing it all in one session. For some reason such a case escapes my imagination.
option 2. why not tar?
ssh -i my_key user#ip 'command1 > out1; command2 > out2; tar cf - out*' | tar xf -
You can do this. Assuming you can set up authentication from the remote machine back to the local machine, you can use ssh to pipe the output of the commands back. The trick is getting the backslashes right.
ssh remotehost command1 \| ssh localhost cat \\\> command1.txt \; command2 \| ssh localhost cat \\\> command2.txt
Or if you aren't so into backslashes...
ssh remotehost 'command1 | ssh localhost cat \> command1.txt ; command2 | ssh localhost cat \> command2.txt'
join them using && so you can have it like this
ssh -i my_key user#ip "command1 > command1.txt && command2 > command2.txt && command3 > command3.txt"
Hope this helps
I was able to, here's exactly what I did:
ssh root#your_host "netstat -an;hostname;uname -a"
This performs the commands in order and cat'd them onto my screen perfectly.
Make sure you start and finish with the quotation marks, else it'll run the first command remotely then run the remainder of the commands against your local machine.
I have an rsa key pair to my server, so if you want to avoid credential check then obviously you have to make that pair.
I think this is what you need:
At first you need to install sshpass on your machine.
then you can write your own script:
while read pass port user ip; do
sshpass -p$pass ssh -p $port $user#$ip <<ENDSSH1
COMMAND 1 > file1
.
.
.
COMMAND n > file2
ENDSSH1
done <<____HERE
PASS PORT USER IP
. . . .
. . . .
. . . .
PASS PORT USER IP
____HERE
How to run multiple command on remote server using single ssh conection.
[root#nismaster ~]# ssh 192.168.122.169 "uname -a;hostname"
root#192.168.122.169's password:
Linux nisclient2 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:54 EDT 2009 i686 i686 i386 GNU/Linux
nisclient2
OR
[root#nismaster ~]# ssh 192.168.122.169 "uname -a && hostname"
root#192.168.122.169's password:
Linux nisclient2 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:54 EDT 2009 i686 i686 i386 GNU/Linux
nisclient2
From a previous question, I have found that it is possible to run a local script on a remote host using:
ssh -T remotehost < localscript.sh
Now, I need to allow others to specify the directory in which the script will be run on the remote host.
I have tried commands such as
ssh -T remotehost "cd /path/to/dir" < localscript.sh
ssh -T remotehost:/path/to/dir < localscript.sh
and I have even tried adding DIR=$1; cd $DIR to the script and using
ssh -T remotehost < localscript.sh "/path/to/dir/"
alas, none of these work. How am I supposed to do this?
echo 'cd /path/to/dir' | cat - localscript.sh | ssh -T remotehost
Note that if you're doing this for anything complex, it is very, very important that you think carefully about how you will handle errors in the remote system. It is very easy to write code that works just fine as long as the stars align. What is much harder - and often very necessary - is to write code that will provide useful debugging messages if stuff breaks for any reason.
Also you may want to look at the venerable tool http://en.wikipedia.org/wiki/Expect. It is often used for scripting things on remote machines. (And yes, error handling is a long term maintenance issue with it.)
Two more ways to change directory on the remote host (variably):
echo '#!/bin/bash
cd "$1" || exit 1
pwd -P
shift
printf "%s\n" "$#" | cat -n
exit
' > localscript.sh
ssh localhost 'bash -s "$#"' <localscript.sh '/tmp' 2 3 4 5
ssh localhost 'source /dev/stdin "$#"' <localscript.sh '/tmp' 2 3 4 5
# make sure it's the bash shell to source & execute the commands
#ssh -T localhost 'bash -c '\''source /dev/stdin "$#"'\''' _ <localscript.sh '/tmp' 2 3 4 5