There is a script located in following path
/usr/local/bin/subrun
The Owner & usergroup of above file is root
When I run above script locally using following command in BASH shell:
/bin/sh /usr/local/bin/subrun
It runs perfectly fine
But When I try to run same script remotely using following command in BASH shell:
ssh user#host /usr/local/bin/subrun
It throws an error :
/usr/local/bin/subrun: Command not found.
Question : How do I resolve this ? Does this has to do with 'root' (Owner & Usergroup of script)
PS: Also there is another script in the same location with different Owner & usergroup (for e.g. Owner : manager & Usergroup : admin). This script can be run locally or remotely without any issue
PS2: 'subrun' script file has following levels of permission '-rwxr-xr-x' (And I am not allowed to change permission using chmod. It says Operation not permitted
Since you run it locally as:
/bin/sh /usr/local/bin/subrun
rather than just:
/usr/local/bin/subrun
it's probaby not an executable file on either machine and so you should do the same when trying to run it remotely and use:
ssh user#host '/bin/sh /usr/local/bin/subrun'
instead of
ssh user#host /usr/local/bin/subrun
or make it executable on every machine by running chmod oug+x /usr/local/bin/subrun or similar on every machine and THEN you can call it as just /usr/local/bin/subrun on every machine.
Related
Bellow command if i write inside a script (test.sh) and execute directly on the specific machine it works.
sshpass -p $HOST_PWD sftp testuser#host <<!
cd parent
mkdir test
bye
!
But when i try to run (directly below scrip or invoking the test.sh file in the specif path) in Jenkins with "Execute shall script on remote host using ssh" it failing with
sshpass: Failed to run command: No such file or directory
I have installed sshpass, lftp and rsync in the remote machine
Issue :
I have added export $HOST_PWD in .bashrc of specific machine as well as Jenkins but in not finding it
Script placed in specific machine, if directly executed the script in that machine it works even with $HOST_PWD. But not working if we invoke from jenkins either script or directly scrip using "Execute shall script on remote host using ssh"
Working with Changes :
Instead of $HOST_PWD if i added directly password it works.
remote user:ab
escalated user: UNIX
when i am doing copy module to /etc/profile.d/.its throwing error permission denied.
but with shell and command module.
sudo cp myscript.sh /etc/profile.d/
its working from UNIX user.i want to use ansible module rather than shell or command.here issue with sudo from UNIX user to execute command with sudo privileged.Become user i can't use root directly. Dont have access through unix user i can use sudo.
already used below details.
become=yes
become_method=sudo
become_user=unix
become_ask_pass=false
sudo cp means that it is running as root, not the user unix.
Try removing the line
become_user=unix
Using the Linux terminal, I run bash scripts (.sh files) containing sequences of commands I want to execute.
The issue is that I am unable to run a Docker command from within my shell script. I can run this Docker command when it's typed directly at the terminal with root privileges but not when I include it in the shell script file.
My script executed as a general user from command line, looks like this:
#!/usr/bin/env bash
cd /home/user/docker_backup
# remove /home/user/docker_backup/data
rm -rf data
# Switch to root privileges. my system is set to only run Docker as root
su
# Copy a folder from Docker container to host OS
docker cp <container-name>:/home/user/data /home/user/docker_backup
# More general user commands
cd ..
My code only runs until the su line above. After i enter the root password, nothing happens. if i type exit, i get permission errors, meaning the docker cp command failed.
**
This is my desired solution
**After thorough research, as I wanted to run my script as a general user, and only run certain commands as Root when necessary, I came up with a solution that works.
My script now looks like this (run with
$ sh script_name.sh):
#!/usr/bin/env bash
cd /home/user/docker_backup
# remove /home/user/docker_backup/data
rm -rf data
# Switch to root privileges. my system is set to only run Docker as root
su - root -c "docker cp <container-name>:/home/user/data /home/user/docker_backup"
# More general user commands
cd ..
Run shell script as general user. For commands that require root privileges, I use su - root -c "<command>". Terminal prompts for root password and executes command in quotes as root, then shell proceeds as general user.
Actually posting this as an answer:
You switch your current user to root during the script, but the script was executed by your own user.
So the docker cp command will also be executed as your own user, but you will be logged into the root account.
This results in you not seeing the output of docker cp (which might give you insight to not working - I think insufficient privilege).
A solution to this is either using sudo before docker cp, starting the script as root or adding your user to the group "docker", which authorizes your user to use the docker commands
I had the similar issue where the docker commands were running fine on the Terminal but the same commands were not running when I compiled them into a bash script and the issue was basically because of two reasons.
The docker commands need to be run with uplifted privileges that is with the sudo command ( Eg: sudo docker ps works but docker ps won't work). One could add the current user to docker group so that we need not use sudo with each docker command. Please visit this link and follow the section 2 to do the same.
Run the script in the correct way
One should have #! bin/bash at the starting of the script. It is a shebang that is required by each script.
One should save the file without .sh extension
One should provide the execution permission to the script by giving command chmod 777 script_name
run the script with bash script_name
Hi i have created a batch file (run.bat) that after execution connects me to UNIX server with help of plink. But issue starts from this point i have to execute a script after connection to my server the script contains a command sudo -l. After the execution i get the error as mentioned in subject can anyone help me on this issue ??
Batch File-:
"C:\Program Files\PuTTY" plink -ssh -pw Tos#12Ts w44dvftyw#caa1607UX009.wvd.abcd.net /opt/sieb/w44dvftyw/run.sh
Script file(run.sh) -:
#!/bin/bash
sudo -l
It says
sudo: command not found
But when i run my script normally on UNIX server it runs with no issues. What am i missing here to make it work this way please help.
Scripts such as ~/.profile or ~/.bash_profile responsible for setting up the current user's PATH are run only on login shells.
Running sh -c 'somescript' (as performed by ssh host 'somescript') is neither a login shell, nor an interactive shell; thus, it does not gain the benefit of such scripts.
This means that additions to the PATH (in your case, /usr/local/bin) may not be present with commands run in this way.
Among your options:
Pass the PATH you want as part of the command to remotely run. This might look like:
plink -ssh user#host "PATH=/bin:/usr/bin:/usr/local/bin /opt/sieb/w44dvftyw/run.sh"
Embed a working value in the script you're running:
#!/bin/bash
PATH=/bin:/usr/bin:/usr/local/bin
# ...put the rest of your script here.
As part of an intricate BASH script, I'd like to execute a command on a remote system from within the script itself.
Right now, I run the script which tailors files for the remote system and uploads them, then through a ssh login I execute a single command.
So for full marks:
How do I log into the remote system from the bash script (i.e. pass the credentials in non-interactively)?
How can I execute a command (specifically "chmod 755 /go && /go") from within the script?
Following Tim Post's answer:
Setup public keys and then you can do the following:
#!/bin/bash
ssh user#host "chmod 755 /go && /go"