When I run a bash script that ssh's into a remote server and run a command like wget it saves on the source not the destination server?

Question

I have the following bash script

#!/bin/bash
ssh -o "StrictHostKeyChecking no" ubuntu@$1
cd /home/ubuntu
wget google.com

When I run it, ./test.sh I am ssh'd into the remote server but the wget command is not run unless I press ctrl+d and then the ssh session exits and the index.html file is saved to /home/ubuntu

How can I change this bash script so that I can save the index.html file on the remote server?

user529758 · Accepted Answer · 2013-03-17 21:05:32Z

4

Just specify the command to be executed in the command line for ssh:

ssh -o "StrictHostKeyChecking no" ubuntu@$1 'cd /home/ubuntu; wget google.com'

answered Mar 17, 2013 at 21:05

user529758

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2 Comments

cnicutar Over a year ago

I like your succint way too, making a script can be overkill if you only need to run 2 commands.

user529758 Over a year ago

@cnicutar It was exactly what I was about to comment on your answer but finally I resisted ;-)

cnicutar · Accepted Answer · 2013-03-17 21:04:41Z

3

What your script does:

Open an interactive connection to the specified host
Wait for the connection to finish (that's why you have to hit Ctrl-D)
Execute some commands locally

What you want is to make a script on the remote host and execute it:

run.sh
#!/bin/sh
cd /home/ubuntu
wget google.com

And in the script on the local host:

ssh -o "StrictHostKeyChecking no" ubuntu@$1 run.sh

answered Mar 17, 2013 at 21:04

cnicutar

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Comments

Eric · Accepted Answer · 2013-03-17 21:10:49Z

2

You have the concept of bash very wrong. Bash is not a way to create macros that do the typing for you. Bash is a scripting language that will execute a series of commands on the local machine. This means that it is going to run an ssh command which connects to the remote host. Once the ssh script is done executing, bash will execute the cd and then the wget.

What you want to do is pass the commands to the remote ssh server.

 #!/bin/bash
 ssh -o "StrictHostKeyChecking no" ubuntu@$1 "cd /home/ubuntu; wget google.com"

answered Mar 17, 2013 at 21:10

Eric

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