How To: Autoexec.bat in Linux �� : autoexec.bat ��

Angsuman Chakraborty ��

October 14th, 2007 �� / �� 14th � 2007

Autoexec.bat is a legacy file in Windows which is executed every time you start Windows. Autoexec.bat �� . Commands you want to run with startup of windows, and applicable to all users, are added to autoexec.bat. �� autoexec.bat. Let's see how you can do the same with Linux. �� .

First of all Linux provides a powerful mechanism to create startup scripts which can be used for complex purposes. �� . For simple scripts to be included during startup like using autoexec.bat on windows, you have a simple alternative: �� autoexec.bat � �� :

Include your scripts in /etc/rc.local file. �� / �� / rc.local ��.

For example to add a default load balancing route for our outgoing traffic using our dual internet connections (ADSL broadband connections from BSNL & Tata Indicom) here are the lines I included in rc.local file: �� (�� bsnl & �� indicom) �� rc.local �� :

ip route add 192.168.1.0/24 dev eth1 src 192.168.1.10 table bsnl �� 192.168.1.0/24 �� eth1 src 192.168.1.10 �� bsnl
ip route add default via 192.168.1.1 table bsnl �� 192.168.1.1 �� bsnl
ip route add 192.168.0.0/24 dev eth2 src 192.168.0.10 table tata �� 192.168.0.0/24 �� eth2 src 192.168.0.10 �� 
ip route add default via 192.168.0.1 table tata �� 192.168.0.1 �� 
ip rule add from 192.168.1.10 table bsnl �� 192.168.1.10 �� bsnl
ip rule add from 192.168.0.10 table tata �� 192.168.0.10 �� 
ip route add default scope global nexthop via 192.168.1.1 dev eth1 weight 1 nexthop via 192.168.0.1 dev eth2 weight 4 �� nexthop �� 192.168.1.1 �� eth1 �� 1 nexthop �� 192.168.0.1 �� eth2 �� 4