I am trying to write a bash script which when run can find the ip address of the device connected through usb. The bash script which is doing this:
#!/usr/bin/bash
ip=$(adb shell 'sudo ip -f inet addr show')
Then I am going to use the ip later in the script. But the shell command is giving me an error:
error: closed
To call the script I just navigated to the directory with terminal where its situated and entered
./name_of_script
Every shell command is giving me this error. I even tried removing the single quotes. When I tried running the same command outside the script inside a terminal, it worked flawlessly. How to run shell commands in a bash script?
What's wrong?
On Android there is no sudo, only on rooted devices the su binary is present. Therefore you have to change the command to:
adb shell su -c 'ip -f inet addr show'
But in my tests the used command ip -f inet addr show did not need root permissions, the output was the same.
So you can simplify the command to:
adb shell ip -f inet addr show
Related
I would like to run a command on a remote server using ssh, under bash, while my default session is csh.
minimal example (true command is more complex and is generated by my IDE remote debugger):
ssh hostname 'ls | head'
I don't have admin privileges. Trying chsh -s /bin/bash results with an error chsh: cannot lock /etc/passwd; try again later.
I tried adding to .cshrc the following
setenv SHELL /bin/bash
exec /bin/bash --login
but it freezes the console when sending the command through ssh (while regular ssh works)
Any idea how to solve that?
NOTE: I must have a solution that would configure the host, because I don't have access to the ssh command which is generated automatically by the debugger of my IDE. On the IDE I can only set the host name and port number. (EDIT) Therefore solutions like ssh hostname '/bin/bash -c "ls | head"' wont apply
EDIT2:
Actual command shown by IDE (again, I can't edit it):
ssh://username#localhost:2213/home/lab/username/anaconda2/envs/tf_011b/bin/python -u /specific/a/home/cc/cs/username/.pycharm_helpers/pydev/pydevd.py --multiproc --qt-support --client '0.0.0.0' --port 41823 --file /home/lab/username/remote_py/nlteach/show_attend_and_tell/train_saat_classifier.py --train_dir=/home/lab/username/nlteach/output/train/d=cub/imSD=11%imSP=rnd%tcSP=cvpr16/CSat/res50%lr0_02LrDTexpLrDc0_938OrmspWDc0/emb=512%ldTrn=0%nU=512%noHid=1%lr=0_02%lrDT=fix%lrDc=1%o=rmsp/
I am not sure why, but on a bash enabled server it works, while it fails on the csh host.
Thanks!
Invoke bash on the remote side, telling it what commands to run:
ssh hostname '/bin/bash -c "ls | head"'
If the command is too complicated (eg because of quotation mark escaping), then write your commands to a script, copy the script, then run the script:
scp script.bash hostname:/tmp/
ssh hostname '/bin/bash /tmp/script.bash'
I am running a very simple script that will ssh into a remote ubuntu instance, move around the directory structure execute a few things, then I want the prompt to stay in Ubuntu. When the script ends, in ends back at the local prompt. How do I make modify the script so that it finishes with the remote prompt?
local$ ssh -i xxx.pem ubuntu#xxx.ap-region.compute.amazonaws.com \
"cd virtualenv; ls -lh;"
There are two things needed to be added to your commandline:
The bash command in the end starts the bash shell (you can start any other you want)
The -t switch will make sure the remote server will allocate you TTY and your shell will work as expected:
local$ ssh -t -i xxx.pem ubuntu#xxx.ap-region.compute.amazonaws.com \
"cd virtualenv; ls -lh; bash"
I have two hosts, hosts A and B. A has a script (generate) that compiles my thesis:
#!/bin/sh
pdflatex Thesis.tex
When running this command on host A (console window) it works perfectly.
I am basically trying to connect from host B to A and run the generation command as an ssh remote command. All the keys are properly set. When I run the command, I get the following:
hostB> ssh user#hostA exec ~/Thesis/generate
This is pdfTeX, Version 3.1415926-1.40.10 (TeX Live 2009/Debian)
entering extended mode
! I can't find file `Thesis.tex'.
<*> Thesis.tex
I tried adjusting the script so that it considers the directory:
pdflatex ~/Thesis/Thesis.tex
But because the Thesis.tex inputs some others files (images), I get an error message.
I presume the problem is some sort of enviroment that doesn't exist in remote commands. How do I fix this?
ssh will run your command in your home directory. You probably wanted to run it in your ~/Thesis directory.
Just cd first and it should be fine:
ssh user#hostA 'cd ~/Thesis && ./generate'
I have function that is sourced through the .bashrc file on remote host A.
If i use "which" on remote host A , i`m getting function body as output.
I need to run it through ssh remotely from another host B.
Currently , all my tries are ending with "command not found error".
I already tried to pass to
ssh A "source /home/user/.bashrc && function "
, this not help.
Also tried force ssh to assing pseudo-tty with -t key. SHELL on both hosts is bash.
ssh localhost on host A still keeps function status available.
Output :
[user#hostA ~]$ which status
status is a function
status ()
{
dos -s $*
}
[user#hostB ~]$ ssh hostA " source /home/user/deploy/bin/_bashrc && status all "
ls: : No such file or directory
bash: status: command not found
Basically, you can't. To do that you need to copy the sourced file on the remote host and source it in there. Note, that your file may be sourcing in some other files as well… This is almost like running local program on the remote host.
The trick is to get the remote end to properly load your file containing the function into the shell environment.
I found with bash that the following works...
Put your function into .bashrc on the remote:
foo_func()
{
echo Hello World
}
Then on the local side:
ssh user#remote bash -l -c foo_func
The bash -l instructs bash to run as a login shell (sourcing startup files) and then the -c tells the shell to execute the string foo_func.
So I'm trying to do something that involves running sbt over an SSH command, and this is what I'm trying:
ssh my_username#<server ip> "cd <project folder>; sbt 'run-main Foo' "
When I do that however, I get an error message: bash: sbt: command not found
Then I go SSH into the server myself, cd to the project folder, and run sbt 'run-main Foo' and everything works nicely. I have checked to make sure sbt is on the $PATH variable on the remote server via ssh my_username#<server ip> "echo $PATH" and it shows the correct value.
I feel like this is a simple fix, but cannot figure it out... help?
Thanks!
-kstruct
When you log in, bash is run as an interactive shell. When you run commands directly through ssh, bash is run as a non-interactive shell, and therefore different initialization files are sourced (see the bash manual pages for which exactly). There are a number of ways to fix this, e.g.:
Use the full path to sbt when calling it directly through ssh
Edit .bashrc and add the missing directories to the PATH environment variable
Note that your test ssh my_username#<server ip> "echo $PATH" actually prints PATH on your client, not your server, because of the double quotes. Use ssh my_username#<server ip> 'echo $PATH' or ssh my_username#<server ip> env to print PATH from the server's environment. When checking using env, you will see that PS1 is only set in interactive shells.