Execute Bash script stored in a file over SSH

Question

Say I have the following Bash script stored in the file foo.sh:

#!/bin/bash
echo foo

Without having to scp the file, how could I execute the script stored in foo.sh on a remote machine?

I have tried the following (with a few variations) to no success:

$ ssh root@remote eval `cat foo.sh`

eval `cat foo.sh`seems to expand to eval #!/bin/bash echo foo here

possible duplicate of [how to use ssh to run shell script on a remote machine?](http://stackoverflow.com/questions/305035/how-to-use-ssh-to-run-shell-script-on-a-remote-machine) — aioobe, Apr 14 '11 at 13:07
You'll of course want to set up SSH so that it doesn't require a password: http://www.csua.berkeley.edu/~ranga/notes/ssh_nopass.html — , Jan 11 '13 at 01:40

score 63 · Accepted Answer · edited May 23 '17 at 12:25

63

ssh root@MachineB 'bash -s' < local_script.sh

I got it from that thread: How to use SSH to run a shell script on a remote machine?

edited May 23 '17 at 12:25

Community

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answered Apr 14 '11 at 13:09

das_weezul

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And how can I pass arguments to that script? – Agostino Mar 04 '14 at 14:27
@Agostino: if you need to call local_script.sh with some arguments, just pass the name of a script calling local_script.sh with the necessary arguments, instead of calling local_script.sh directly :) – das_weezul Apr 16 '14 at 12:47
I'd like to have it as a one liner. Could you make a small code example? – Agostino Apr 17 '14 at 14:45
Really nice that you provide the source link! – Kostas Demiris Mar 31 '20 at 12:58
I need to execute this script in an automated environment. Any idea how I can provide ssh password? – Devorein Oct 27 '21 at 14:57

score 10 · Answer 2 · answered Sep 18 '14 at 11:18

In accepted answer I see:

I'd like to have it as a one liner. Could you make a small code example?

That should be it:

ssh root@MachineB 'bash -s -- uno' < local_script.sh

or better, with a here-in document

ssh root@MachineB 'bash -s -- uno' <<\EOF
> date
> echo $1
> EOF
jue sep 18 13:01:25 CEST 2014
uno

score 2 · Answer 3 · answered Apr 14 '11 at 13:09

2

cat foo.sh | ssh -T root@remote will to the trick. The -T option suppresses a warning you would otherwise get because you're piping input from a file.

answered Apr 14 '11 at 13:09

odrm

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Hear hear on the useless use of cat. ssh root@remote < foo.sh will do the trick. – Hai Vu Apr 14 '11 at 15:29
How do you pass variables to `foo.sh`? – CodyBugstein Aug 18 '21 at 04:58

user unknown · Answer 4 · 2011-04-15T05:24:37.247

2

cat foo.sh | ssh HOSTNAME

Now tested, though: handle with care! :)
(removed dash (see comments) and nearly everything :) )

edited Apr 15 '11 at 05:24

answered Apr 14 '11 at 13:10

user unknown

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Why would you `cat foo.sh -`? That will block, waiting for user to hit `ctrl-D` – glenn jackman Apr 14 '11 at 14:45
Well, I'm without testable environment. Without the dash? I corrected it. – user unknown Apr 14 '11 at 17:53
You don't need the dash, `cat` without arguments reads from standard input. But you don't need `cat` at all, and don't need the `foo.sh` file either. Just run `sh`. – Idelic Apr 14 '11 at 23:26

score 0 · Answer 5 · answered Sep 01 '19 at 17:05

0

You can use runoverssh:

sudo apt install runoverssh

runoverssh -s localscript.sh user host

-s runs a local script remotely

answered Sep 01 '19 at 17:05

nowat

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Execute Bash script stored in a file over SSH

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