Minecraft Startup Script

[Patrick Brenner]

Greetings, everyone!

I'm writing a Minecraft startup script for my Ubuntu server box. I mostly do simple Java and C/C++, as I'm only a sophomore in college studying Computer Science: I haven't made it to any other languages yet. Anyways, I'm writing this script in what I believe to be Bash, although the internet sources around this language seem few and far between. Regardless, this is my script:

#START SCRIPT#

#!/bin/bash

## BEGIN_CONFIG ##

MC_PATH=/home/pmbrenner91/Minecraft/TekkitLite

BKUP_PATH=/media/external/minecraft/backup

SCREEN_NAME="minecraft"

## END_CONFIG ##

if [ -e $MC_PATH/server.log.lck ]

then

ONLINE=1

else

ONLINE=0

fi

display() {

screen -R $SCREEN_NAME

}

server_launch() {

echo "Starting Minecraft server..."

cd $MC_PATH

screen -m -d -S $SCREEN_NAME java -Xmx${MEMALOC}M -Xms${MEMALOC}M -jar TekkitLite.jar nogui

sleep 5

}

server_stop() {

echo "Stopping Minecraft server..."

screen -S $SCREEN_NAME -p 0 -X stuff "`printf "stop.\r"`"

sleep 5

}

if [$# -gt 0]

then

case $1 in

## STATUS ##

"status")

if [$ONLINE -eq 1]

then

echo "Minecraft server seems ONLINE."

else

echo "Minecraft server seems OFFLINE."

fi;;

## START ##

## ##

*)

echo "Usage : minecraft < status | start [force] | stop | restart [warn] | logs [clean] | backup [clean] | update >";

esac

else

if [$ONLINE -eq 1]

then

display

else

echo "Minecraft server seems OFFLINE."

fi

fi

exit 0

#STOP SCRIPT#

I wrote it using the Notepad++ editor for Windows, and I saved it as a Unix Script File, which enables a file extension of .sh, which I've found to be typical of most programs run using the Linux terminal. So, I try running the file using ./minecraft.sh (the name of the program is minecraft.sh), and I encounter an error saying that I am using a bad interpreter:

pmbrenner91@SERVER:~/Minecraft/TekkitLite/Server0.6.0$ ./minecraft.sh

-bash: ./minecraft.sh: /bin/bash^M: bad interpreter: No such file or directory

So, I run it using <bash minecraft.sh> at which point I receive the following error:

pmbrenner91@SERVER:~/Minecraft/TekkitLite/Server0.6.0$ bash minecraft.sh

minecraft.sh: line 13: syntax error near unexpected token `$'{\r''

'inecraft.sh: line 13: `display(){

From my understanding, Windows and Unix/Linux parse new lines differently. Apparently, Windows uses CR and LF, or \r \n to signify new lines in a text file. Unix/Linux uses only LF, or \n. But this leaves me confused, as it waits to line 13 to encounter a parse error. Can anyone help a new programmer?

Thanks a million!

--PMBrenner91

[Patrick Brenner]

So, this forum doesn't like my tabs. I posted the script to pastebin.com: http://pastebin.com/DP0kP9eL

[holymage!]

helpful hint...don't post twice in a row...there is an edit button

just letting you know :)

[freakachu]

probably because the previous parts could be compressed to one line or otherwise handled properly despite incorrect line breaks, but that line can't for whatever reason. if you're writing a bash script, why are you writing it in widows? I assume you have access to a linux machine that you plan to run this on, yes? create the script there.

also, you do know your script does basically nothing as it stands, right?