How to edit a line in a file using a batch file??????

Question

Basically i want to edit one line in a properties file, using a batch file, Here is what it says
#Minecraft server properties
#Tue Feb 22 15:58:36 PST 2011
level-name=world2
hellworld=false
spawn-monsters=true
online-mode=false
spawn-animals=true
max-players=5
server-ip=5.196.238.77
pvp=true
server-port=25565
white-list=false
The IP address needs to be changed, i have a hamachi server and a server for home but i need to change this to my ip address on my computer wich is 192.168.1.74. This needs to be changed back and forth so how can i make a batch that just runs and then done its been changed.

Answer 1

There are no .bat files in a Unix environment
#!/usr/bin/env bash
export NEW_IP=192.168.1.74
perl -ni -e '
s/d.d+.d+.d/$ENV{"NEW_IP"}/;
print;
' yourpropertiesfile
Make sure you change the file's protections so they are executable
chmod +x nameof_yourscript
There are other ways to do this, I just choose a perl script within a bash script. You could do it all with a bash script, you could use awk, you could use sed, you could use python, ruby, etc...