Java program to execute shell scripts on remote server. It should when i run this program. But in my console it shows connected, file is executing,, but in linux the script is not running.this is my code, plssssss help me its urgent. I have a use case where in I have to connect to a ssh terminal using ssh cli@terminal_ip. How do I execute a bash command via SSH? Quote the commands you want to execute. Only a command. Ssh username@remote echo 'AA'. How do I run a Bash program.
Execute Program Via Ssh
Htc snap s521 usb driver free download for windows 10. I have written a script that runs fine when executed locally:
The arguments '-time', 'Aug', '18', and '18' are successfully passed on to the script.
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Now, this script is designed to be executed on a remote machine but, from a local directory on the local machine. Example:
That also works fine. But the problem arises when I try to include those aforementioned arguments (-time Aug 18 18), for example:
After running that script I get the following error:
Please tell me what I'm doing wrong, this greatly frustrating.
slm♦
AllenD3 Answers
You were pretty close with your example. It works just fine when you use it with arguments such as these.
Sample script:
Example that works:
But it fails for these types of arguments:
What's going on?
The problem you're encountering is that the argument, -time, or --time in my example, is being interpreted as a switch to bash -s. You can pacify bash by terminating it from taking any of the remaining command line arguments for itself using the -- argument.
Like this:
Examples
#1:
#2:
#3:
#4:
NOTE: Just to make it clear that wherever the redirection appears on the command line makes no difference, because ssh calls a remote shell with the concatenation of its arguments anyway, quoting doesn't make much difference, except when you need quoting on the remote shell like in example #4:
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slm♦slmIf you're really only using a single string, ie. -time Aug 18 18, then you can simply hardcode it, and existing answers tell you how to do that adequately. On the other hand, if you need to pass unknown arguments through (like a message to be displayed on the other system, or the name of a file created where end-users could control its name), then more care is needed.
With bash or ksh as /bin/sh
If your remote /bin/sh is provided by bash or ksh, you can safely do the following with an untrusted argument list, such that even malicious names (like $(rm -rf $HOME).txt) can be passed as arguments safely:
With Any POSIX-Compliant /bin/sh
To be safe against sufficiently malicious argument data (attempting to take advantage of the non-POSIX compliant quoting used by printf %q in bash when nonprintable characters are present in the string being escaped) even with a /bin/sh that is baseline-POSIX (such as dash or ash), it gets a bit more interesting:
Usage (for either of the above)
The functions given above can then be invoked as:
Execute Program Via Ssh Download
..or..
say a.a is a local file that contains ls
$ssh servername 'cat | bash' < a.a
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change 127.0.0.1 to whatever your remote ip is
Linux Ssh Execute Remote Command
these two give a message about pseudo tty allocation but they work.
$ cat a.a | ssh 127.0.0.1
$ ssh 127.0.0.1 <a.a
Or Star wars battlefront free demo.
$ cat a.a | ssh 127.0.0.1 bash or
Run Program Using Ssh
$ ssh 127.0.0.1 bash < a.a
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