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Need help with this shell script

Link to this post 22 May 13

I made a shell script to make it easier to ssh, ssh with port forwarding, and mount sshfs on my 3 amazon servers. This is my first time making an advanced shell script and I keep getting the error:

main.sh: line 98: syntax error: unexpected end of file

It asks me what I want to do. I type 1 and hit Enter so I can SSH to one of my servers. Then I get the error and the script ends. I don't know what's wrong.


#!/bin/bash

printf "What do you want to do?\n\n"
printf " [1] Regular SSH\n"
printf " [2] SSH with port forwarding\n"
printf " [3] Mount a server with SSHFS\n"
read -p 'Pick one: ' dowhat

if [ $dowhat == "1" ]
then
printf "SSH to what server?\n\n"
printf " [1] Server 1\n"
printf " [2] Server 2\n"
printf " [3] Backup server\n"
read -p 'Pick one: ' ssh
if [ $ssh == "1" ]
then
printf "SSHing to Server 1...\n"
ssh ubuntu@[server1] -p 993
exit 0
if [ $ssh == "2" ]
then
printf "SSHing to Server 2...\n"
ssh ubuntu@[server2] -p 993
exit 0
if [ $ssh == "3" ]
then
printf "SSHing to the backup server...\n"
ssh ubuntu@[backup-server] -p 993
exit 0
else
printf "Invalid answer. Please try again.\n"
exit 0
fi
elif [ $dowhat == "2" ]
then
printf "SSH (port forwarding) to what server?"
printf " [1] Server 1\n"
printf " [2] Server 2\n"
printf " [3] Backup server\n"
read -p 'Pick one: ' sshfr
printf "Forward port #"
read -p 'Pick one: ' fport
printf " to port on server #"
read -p 'Pick one: ' tport
printf "\n"
if [ $sshfr == "1" ]
then
printf "SSHing to Server 1 and forwarding port ${fport} to port ${tport}...\n"
ssh ubuntu@[server1] -p 993 -L ${fport}:localhost:${tport}
exit 0
if [ $sshfr == "2" ]
then
printf "SSHing to Server 2 and forwarding port ${fport} to port ${tport}...\n"
ssh ubuntu@[server2] -p 993 -L ${fport}:localhost:${tport}
exit 0
if [ $sshfr == "3" ]
then
printf "SSHing to the backup server and forwarding port ${fport} to port ${tport}...\n"
ssh ubuntu@[backup-server] -p 993 -L ${fport}:localhost:${tport}
exit 0
else
printf "Invalid answer. Please try again.\n"
exit 0
fi
elif [ $dowhat == "3" ]
then
printf "Mount what server?"
printf " [1] Server 1\n"
printf " [2] Server 2\n"
printf " [3] Backup server\n"
read -p 'Pick one: ' sshfs
printf "Mount root to what folder? \(e.g. ~/AmazonEC2\) "
read -p 'Pick one: ' mount
if [ $sshfs == "1" ]
then
printf "Mounting Server 1 to ${mount}...\n"
sshfs ubuntu@[server1]:/ ${mount}
exit 0
if [ $sshfs == "2" ]
then
printf "Mounting Server 2 to ${mount}...\n"
sshfs ubuntu@[server2]:/ ${mount} -p 993
exit 0
if [ $sshfs == "3" ]
then
printf "Mounting the backup server to ${mount}...\n"
sshfs ubuntu@[backup-server]:/ ${mount} -p 993
exit 0
else
printf "Invalid answer. Please try again.\n"
exit 0
fi
else
printf "Invalid answer. Please try again.\n"
exit 0
fi

Link to this post 23 May 13

Your problems is from having multiple if statements without closing them. For example with your if statements in lines 93 to 129 you have multiple if statements start and only one ends, I beleive you intended them to be a single statement, if that is the case you will want to use if..elif..fi, so the middle statements would start with elif.

Link to this post 23 May 13

mfillpot said:

Your problems is from having multiple if statements without closing them. For example with your if statements in lines 93 to 129 you have multiple if statements start and only one ends, I beleive you intended them to be a single statement, if that is the case you will want to use if..elif..fi, so the middle statements would start with elif.

Thanks so much! I wonder how I could have forgotten about the elif statements when I was using them in the main one.

Link to this post 24 May 13

We all forget little things like that every once in a while, I would also like to recommend adding your the remote server to your hosts file and adding port entries to your ssh.conf file for the remote hosts.

In addition, have you considered using an array of values for remote hosts in the script? this would make it easier to add additional hosts and reduce the redundancy.

Link to this post 21 Jun 13

Hi Everyone,

I am currently studying for the linux exam. One of the questions is a bit vague. I would like someone to please explain why the answer is as such. It would be much appreciated.

I am having a hard time triing to read the statement. Can someone please explain it too me? I don't see where this "Hello" comes from either.

What is the output when the following shell script executes?

cat<<foobar
Hello foobar
Foobar


A. The contents of the file foobar.
B. Hello
C. No output but a file named foobar is created.
D. Hello foobar
E. Hello foobar foobar
Answer: D

Thanks in advance.

bdby

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