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

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Level 1

4 points

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

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.

imac 21.5, Mac OS X (10.6.5), hi

Posted on Mar 31, 2011 12:27 PM

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Answer 1

BobHarris

Level 9

56,945 points

Mar 31, 2011 1:17 PM in response to wiinick100

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...

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Answer 2

Tony T1

Level 6

10,247 points

Mar 31, 2011 1:37 PM in response to BobHarris

BobHarris wrote:
You could do it all with a bash script, you could use awk, you could use sed, you could use python, ruby, etc...

sed...


#!/bin/bash
/usr/bin/sed -i "" 's/^server-ip=.*$/server-ip=192.168.1.74/' path/to/yourpropertiesfile

Tony

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