1
vote
1answer
68 views

Running commands after ampersand symbol & in a remote ssh session

I have a shell script that initiates a long, resource-intensive command on several different machines. In order to execute the script on each machine in parallel, I have an ampersand symbol after ...
3
votes
3answers
183 views

How to copy, execute and retrieve data from a remote computer?

I am trying to run some calculations on a remote computer. Basically I want to copy some files to the computer, load a software, execute the calculation, then retrieve the data back. I have created a ...
0
votes
1answer
72 views

SSH to a server, execute update command that continues even after logging off the ssh session

Okay I saw a lot of questions like this, but almost all have either theoretical answers which do clear the concept but I am still not able to put it up in code. What I want to achieve using a bash ...
2
votes
1answer
63 views

Shell command works locally but does not get parsed correctly through ssh

If I execute the following shell command locally, I get the expected result: adb -s 123456789 shell "su -c 'mount -o remount,rw /system;rm -r /system/app/MyApp.apk;cp /sdcard/MyApp.apk ...
3
votes
1answer
33 views

Why do I get an error when double quoting single quotes in a script that launches a remote SSH command?

I have this script: port=$1 cmd=$2 ssh root@127.0.0.1 -p $port "'"$cmd"'" When running myscript.sh 1000 "ls /dev/shm" it get this error: bash: ls /dev/shm: No such file or directory In the ...
1
vote
1answer
57 views

How to send a mail when someone remote connects to my server

I would like my server to send a mail to me when someone connects remotely over ssh to my server. who only gives me back the Username, TerminalID and Date. I cannot use only that, I need to check ...
2
votes
3answers
555 views

Script to ssh and run a command doesn't work

Below is the script. I wanted to login several servers and check for the kernel version. #!/bin/bash #input server names line by line in server.txt cat server.txt | while read line do sshpass -p ...
2
votes
2answers
67 views

Why does the while cycle skips and only reads the first line?

$ ls testscript.sh testservers.txt $ cat testservers.txt serverA IMM 10.2.3.4 USERID PASSW0RD serverB IMM 10.2.3.5 USERID PASSW0RD $ $ $ cat testscript.sh #!/bin/bash # test them.. egrep ...
2
votes
1answer
71 views

Memory buffer in a bash script

I have recently finished a script that will ask for a hostname and automatically take the argument of the function and ssh into one of my work servers. Here is a copy of my script: #!/bin/bash echo ...
2
votes
2answers
65 views

Call the script after disconnecting from server

I have a script I made for work that will call a function that takes an argument. I use the arguments to ssh into our servers. My question is: Is there a way to call the method so that if/when I get ...
3
votes
2answers
130 views

transfer a file to remote dir only if doesn't exist without replacing

I'm using CentOS linux. In one line cmd, that returns 0 if success, non-0 if failure, I need: Transfer a file to a remote server. Don't transfer the file if filename exists in remote server ...
2
votes
2answers
509 views

Copy ssh public key to multiple Linux hosts

I am trying to copy .ssh/id_rsa.pub from our central server to multiple servers. I have the following script which I usually use to push changes to the different servers. #!/bin/bash for ip in ...
3
votes
1answer
140 views

Restricted ssh remote execution with arguments

I need to enable remote execution of a shell script on a server, but deny all other access. The script is a toggle that accepts a single parameter (on/off/status). This comes close to answering my ...
2
votes
1answer
99 views

SSH config file + shell script help

Well, what I want to do seems a bit convoluted but its the only way I can think of to get the result I want. So here goes. I want to automate ssh to my Pi, in the following fashion: My Pi boots up ...
2
votes
1answer
122 views

Bash Script Display Remote Screen Session to User

I'm kind of new to bash scripting and I'm having trouble figuring out how to accomplish this. I'm working on a script that is designed to backup and manage a java application that runs within a ...
4
votes
1answer
1k views

Executing commands with ssh and shell script using variables on a remote machine

I'd like to execute a command and script located on a remote machine with a script on a local machine. I know it's possible to execute these kind of commands with ssh, so I made: #!/bin/bash ssh ...
1
vote
2answers
181 views

Using exec in find over ssh from shell script

So, I am attempting to execute the following from within a shell script; ssh -q $CUR_HOST "cd $LOGS_DIR; echo cd $LOGS_DIR; find . -name *.log -mmin +1440 -exec gzip {} \; exit" When this runs, it ...
3
votes
2answers
100 views

Have ssh-add be quiet if key already there

I want to put ssh-add /path/to/special_key at the top of a script. This works fine, but it always prompts for the passphrase. This is strange, and a little annoying, as it still asks for the ...
2
votes
1answer
699 views

Shellscript! Syntax error: unexpected “(”

Update: After the changes from the first answer I got some more error codes. : not found: line 23: { esxidown.sh: line 24: redir error Insufficient arguments. : not found: line 26: esxidown.sh: ...
2
votes
1answer
76 views

Problem on running Script on host after connecting

I am new to linux scripting. Please help. I searched on below a lot but was not able to find appropriate answer : I am trying to make a script which I will later schedule as cronjob, so that it keeps ...
1
vote
1answer
123 views

For loop not getting executed correctly over ssh

I have a script in which I am reading from a csv file where it contains SourceIp, DestinationIP,Source Ports, Destination Ports. First I am reading the sourceIp and trying to do ssh over it (I am ...
6
votes
3answers
376 views

Remote ls on multiple machines

I want to connect to multiple machines specified in a file and perform 'ls' there. That's what I've come up with: for machine in $(cat machines) do echo "Connecting to " $machine ssh $machine ...
0
votes
0answers
55 views

Shell script use ssh forwarding to send a file to a second system

I have ssh forwarding enabled and ssh to server A. On server A I want to run a script as root and take advantage of the ssh key being forwarded for USER to send a file to system B. I'm getting a ...
-2
votes
1answer
201 views

automatic capturing top output by cronjob CENTOS 6.5 x86_64

I have this command: top -n 14400 -a -b -d 1 > /toplogfile.txt I want to make a script which is run by cron every day to capture top output, and if it is possible gzip the output file after the ...
1
vote
1answer
201 views

Execute command on remote host fails

I'm trying to execute some commands on remote host like this : ssh -t -t -l user 172.20.20.20 <<EOF pid=$(ps -ef | grep [a]pp-management | awk '{print $2}') && kill -9 $pid && ...
5
votes
3answers
1k views

Bash: interactive remote prompt

I have a script which connects to a remote server and check if some package is installed: ssh root@server 'bash -s' < myscript.sh myscript.sh: OUT=`rpm -qa | grep ntpdate` if [ "$OUT" != "" ] ; ...
0
votes
3answers
846 views

Script to login to ssh twice

I need to login through ssh twice with a script and can't get it to work. This is what I have in my script file: #!/usr/bin/expect set login "user" set addr "address1" set addr2 "address2" set pw ...
2
votes
4answers
2k views

SSH exits after quit case in bash script

So I have the following standard script: #!/bin/bash PS3='Please enter your choice: ' options=("option 1" "Option 2" "Option 3" "Quit") select opt in "${options[@]}" do ...
0
votes
1answer
1k views

scp stuck when trying to copy files from Linux to windows

I use the following scp syntax in order to transfer a lot of files from Linux red-hat 5 to windows machine (under Temp directory). SSH server is already installed on windows machine. I use this line ...
0
votes
1answer
314 views

Pseudo-terminal message in script

This is my script #!/bin/bash exec < filelist.txt while read updatedfile oldfile; do # echo updatedfile = "$updatedfile" #use for troubleshooting # echo oldfile = "$oldfile" #use ...
3
votes
4answers
3k views

List of servers to check for SSH availability

I have a list of IP address that I need to SSH to and log if I could get to them. I would use a Ping script, but DNS might have already reassigned the address. I do not care about the ones I can't get ...
2
votes
2answers
5k views

How to run sudo commands remotely via ssh -t?

I have a script that logs into a remote host via ssh -t and uses sudo service foo restart. The requirement is to avoid the prompt for a password on the remote host. The remote host authenticates via ...
5
votes
1answer
3k views

start autossh reverse tunnel automatically when network comes up

I connect from my home PC thru an Internet server I own to a restricted client (that I also own) using a reverse ssh tunnel. I have a script that sets up the restricted client to middleman leg of ...
1
vote
2answers
2k views

ssh to multiple hosts and run a command [duplicate]

How do I ssh into multiple hosts (e.g host1, host2, host3, etc) and cat /etc/fstab to generate report.txt?
2
votes
1answer
3k views

Ssh to a box, run a command, output data to a file, then move on to the next IP adress [duplicate]

I want to run a script from my Jump server, have it SSH to a server, then run a command (like rm <file>, top or ls -lsa) then take that output and put it in to a file on my Jump server then move ...
1
vote
0answers
479 views

Log in to multiple remote servers and execute a script [duplicate]

I want to make a script that will remote login to the multiple servers listed in a txt file like 10.3.9.6 10.3.9.7 and all servers have same username and password. and want to capture the output of ...
1
vote
0answers
2k views

Using sshpass, return code (exit status) differs for reasons unknown using valid commands

There are a few things going on here but I think ultimately, either CLish or SSH is returning an exit code that is messing up my work flow. I'm attempting to connect to a remote machine (CLish shell) ...
1
vote
1answer
533 views

How to ssh on multiple ipaddress and get the output and error on the local *nix machine?

command="ls -lrt;uname -a;uname -o" for i in 10.38.227.229 10.38.164.103 do ssh auto21@$i "$command 2>&1" >> log #ssh -n auto21@$i "$command" 2> >> log done i am trying ...
5
votes
1answer
2k views

SSH causes while loop to stop

I have finally managed to boil down a problem I have been struggling with for a few weeks. I use SSH with "authorized keys" to run commands remotely. All is fine except when I do it in a while loop. ...
4
votes
2answers
264 views

Is it possible to store ssh connection in bash script instead of $(ssh user@ip command) every time?

I think that the code that I already have is not very efficient as it has to connect each time to the same machine and execute a command. Code: tmp=$(ssh -nq $USER@$IP "$COMMAND" 2>> $LOG) ...
4
votes
2answers
3k views

Executing a shell script from remote server on local machine

Imagine a shell script on the remote server as #!/bin/bash rm /test.x How can I (if possible) to execute this script from my local machine to delete /test.x file on my local machine. Obviously, the ...
3
votes
3answers
134 views

SSH to two addresses, use the one that connects first

I have a home computer (let’s call it franklin because that’s what I call it) that I often ssh into from my work laptop. When I’m at home, I ssh to franklin.local, and when I’m at work or anywhere ...
5
votes
3answers
13k views

ssh input from text file

These two question is driving me crazy and I don't have good expertise of ssh. (but I suspect it is to do with redirection only) The questions are, You want to pass multiple lines of input from a ...
2
votes
4answers
1k views

Run if statement on remote machine

I'm trying to run a set of commands on a remote machine, that includes an if statement. I'm using this to shutdown a list of kvm instances. The first line should be fine, but could be prettier, rest ...
1
vote
1answer
18k views

How do I execute a remote shell script over SSH and be prompted for passwords by commands that require it in that script?

I want to do something like this ssh user@remote-domain.com ./remote_script.sh Contents of remote_script.sh #!/bin/bash hg pull This example is much simpler than what I am actually doing. I know ...
1
vote
5answers
2k views

Execute a command on multiple hosts, but only print command if it is successful?

Here's what I want to do. I want to check over 100 hosts and see if a file exists on that host. If the file does exist, then I want to print the hostname and the output of the command. In this ...
2
votes
1answer
770 views

How to script a database migration using SSH?

I am trying to create a sync.sh script that coordinates with our less-than-ideal version control for our website. This script will migrate a copy of the live database to our local development ...
6
votes
3answers
14k views

How to write a bash script, that logs onto an other machine to do stuff?

Is it possible to write a bash script, that would be started from machine A, logs in on a different machine B by ssh (both machines A and B would be Linux-Machines), copys some files on to machine B ...
1
vote
2answers
812 views

How to change user with authentication inside shell script

It is possible to change the user within a shell script by su - newuser; but what if the newuser needs authentication. How can I provide the password within the shell script? None of the users is ...
0
votes
2answers
715 views

Automated SSH Login [duplicate]

Possible Duplicate: Shell Script for logging into a ssh server Autentification on SSH connection in OneLine How could I make a SSH Login programmatically on a unix server, I don't have ...