I am trying to write a bash script to make things faster. Is it not possible to connect to the server with the code below in a bash script? I can't make it work, even though it works in the terminal.
#!/bin/bash -x
echo "Starting connection script"
sh -i /home/EC2_KEY_HEHE.pem ubuntu#ec2-IP.blabla.amazonaws.com
What I get when I run is a not found output for each line in the pem file,
$ /home/EC2_KEY_HEHE.pem: 1: /home/EC2_KEY_HEHE.pem: -----BEGIN: not found
$ /home/EC2_KEY_HEHE.pem: 1: /home/EC2_KEY_HEHE.pem: adsnaleAFemasdsdsdnds: not foundMadfdasfdasfnda;vonraada
...
Some debug is needed.
Please change:
ssh -i /home/EC2_KEY_HEHE.pem ubuntu#ec2-IP.blabla.amazonaws.com
to:
#!/bin/bash -x
echo "Starting connection script"
ssh -vi /home/EC2_KEY_HEHE.pem ubuntu#ec2-IP.blabla.amazonaws.com
does it produce an idea about the reason ?
you are calling sh which is kind of shell change it to ssh
Related
Can anyone explain, please, why this command echoes an empty line instead of "abc"? I'm stuck with this. I know there are multiple ways of reaching the same goal but please also explain why this command does not print "abc" and why it's wrong.
ssh 127.0.0.1 bash -c "echo abc"
You effectively lose a level of quoting when you execute commands via ssh. You would need to write instead:
ssh 127.0.0.1 'bash -c "echo abc"'
Without those outside quotes, the command you're running on the remote system is:
bash -c echo abc
Here you're running the command echo, with $0 set to abc.
I want to have one script which starts a services in another server.
I have tested that the script works as expected in the server where the server is going to run.
This is the code which starts the service and monitors the log until it is in the startup process:
pkill -f "$1"
nohup java -jar -Dspring.profiles.active=$PROFILE $1 &
tail -n 0 -f nohup.out | while read LOGLINE
do
echo $LOGLINE
[[ "${LOGLINE}" == *"$L_LOG_STRING"* ]] && pkill -P $$ tail
done
This works fine as long as I execute that from that machine.
Now I want to call that script from another server:
#!/usr/bin/env bash
DESTINATION_SERVER=$1
ssh root#$DESTINATION_SERVER /bin/bash << EOF
echo "Restarting first service..."
/usr/local/starter.sh -s parameter
echo "Restarting second service..."
/usr/local/starter.sh -s parameter2
EOF
Well, everytime I try that the script of the remote server gets stuck in the "while READ" loop. But as I said, when I execute it locally from the server works fine, and in my "not simplified script" I´m not using any system variable or similar.
Update: I just tried to simplify the code even more with the following lines in the first scenario:
pkill -f "$1"
nohup java -jar -Dspring.profiles.active=$PROFILE $1 &
tail -n 0 -f nohup.out | sed "/$L_LOG_STRING/ q"
I'd say the problem is some how in the "|" through ssh, but I still can find why.
it seems that the problem comes from not having an interactive console when you execute the ssh command, therefore the nohup command behaves strangly.
I could solve it in two ways, outputing the code to the file explicitly:
"nohup java -jar -Dspring.profiles.active=test &1 >> nohup.out &"
instead of:
"nohup java -jar -Dspring.profiles.active=test &1&"
Or changing the way I access via ssh adding the tt option (just one did not work):
ssh -tt root#$DESTINATION_SERVER /bin/bash << EOF
But this last solution could lead to other problems with some character, so unless someone suggests another solution that is my patch which makes it work.
I have a remote bash script, which goes through files using a for loop:
#!/bin/bash
for f in *.pdf;
do
echo $f
done
When executed locally:
server$./test.sh
1508.01585.pdf
1605.07683.pdf
When executed through ssh from a remote client:
client$ ssh user#server 'bash -c ~/papers/test.sh'
*.pdf
I have tried using ssh -T, bash -s, and nothing seems to work.
Please help!
I'm using set of commands from a shellscript. First command is running fine but it is moving to lftp command prompt and expecting manual input instead of running commands from shelscript. Following are the commands i'm using
lftp -e "$HOST"
lftp -u "$USER,$PWD"
lftp -e "cd /inbox"
put $file
bye
Please suggest me some solution
Using lower-case variable names to avoid conflicts with local environment variables or shell-builtins ($USER and $PWD are both builtins, so you shouldn't be setting them yourself):
lftp \
-e "cd /inbox; put $file" \
-u "$user,$pwd" \
"$host"
The point, here, is invoking lftp only once, and passing all the necessary commands to that single invocation.
I'm trying to run a local script remotely that I'm calling with some other code. The basic formate is
ssh -i ${PemKey} ${User}#${URL} 'bash -s' -- < ${Command}
I get the error line 24: ${Command}: ambiguous redirect
Command is a string with the name of the script I want to run and its arguments. If I change the script to just print the command as
echo "ssh -i ${PemKey} ${User}#${URL} 'bash -s' -- < ${Command}"
and then run the command myself it works just fine.
I've tried putting the command in a temp variable and then call it that way, like:
TEMP="ssh -i ${PemKey} ${User}#${URL} 'bash -s' -- < ${Command}"
$TEMP
echo $TEMP
This results in No such file or directory. Again the echoed version of the command runs just fine at the command line.
Anyone know what I'm doing wrong here?
It seems that executing $TEMP doesn't work correctly, as the whole string 'bash -s' -- < ${Command} is given in argument to ssh. And in fact if you create a file called ${Command} on you remote host you will get an error bash: bash -s: command not found.
A solution is to uses eval like this :
eval $TEMP
This really does what it should.