Linux Boot Start program detailed

record This thing is last completed, today to add a new folder, a moment to forget how to do, because there are several ways, at least I know three ways, here to record a previous practice, feel the simplest:Operating system: CentOS-5.2 target: Automatically mount the shared directory of Windows in LAN on Boot

First, root permission editor/etc/rc.d/rc.local

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1. Su
2. cd/etc/rc.d/
3. VI rc.local

second, in this file plus the script you want to execute, the full contents are as follows:

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2. #!/bin/sh
4. #
6. # This script is executed *after* all and the other init scripts.
8. # can put your own initialization stuff in here if you don ' t
10. # want to does the full Sys V style init stuff.
14. Touch/var/lock/subsys/local
16. Mount//192.168. 0.3/data2-1/mnt/data2-1-o username=un,password=123
18. Mount//192.168. 0.3/data2-2/mnt/data2-2-o username=un,password=123
20. Mount//192.168. 0.3/data2-3/mnt/data2-3-o username=un,password=123
22. Mount//192.168. 0.3/data2-4/mnt/data2-4-o username=un,password=123
24. Mount//192.168. 0.3/data2-5/mnt/data2-4-o username=un,password=123

Hint: The practice here is very immature, I hope not, it is best to write a script file here to call, the structure is clearer, but note that the command to execute as a parameter to the SU.

In addition review a VI editing command-copy YYP

Third, although the fix, or to add

When Linux starts, it automatically executes the initialization program in the/ETC/RC.D directory, so we can put the startup task in that directory, in the following ways:

Programme one:

Relatively simple, is the above approach, the/etc/rc.d/directory of the initialization program a lot, rc.local is done after all initialization, so it is appropriate to tamper here.

Scenario Two:

INIT.D directories are executable programs, they are actually service scripts, written in a certain format, Linux at startup will be executed automatically, similar to the services under Windows.

1, write the following script simpletest:

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2. #!/bin/bash
4. #chkconfig:2345 05--Specify at which levels to perform,0 generally refer to shutdown,6 refer to reboot, and others for normal startup. 80 is the priority of the boot,05 is the priority level of the shutdown
6. #description: simple Example Service
8. retval=0
10. Start () {#启动服务的入口函数
12. echo "Simple example service is started ..."
14. }
18. Stop () {#关闭服务的入口函数
20. echo "Simple example service is stoped ..."
22. }
26. #使用case选择
28. Case $1 in
30. Start
32. Start
34. ;;
36. Stop
38. Stop
40. ;;
42. *)
44. echo "Error choice!  Please input start or stop ";;
46. Esac
48. Exit $RETVA

3, run chmod +x/etc/rc.d/init.d/simpletest, so that it can be directly executed

4, run Chkconfig--add simpletest, add the service to the configuration

5, run Chkconfig--list simpletest, you can view the status of the service process

Scenario three, the purpose is to mount the shared directory, so you can add in the/etc/fstab

192.168.0.3/data2-1/mnt/data2-1 NFS username=un,password=123 0 0

Very embarrassed, scenario two although the script can run

#./simpletest Start
Simple example service is started ...

But I showed up in the 4th step.

# chkconfig--add simpletest
Error reading information in SimpleTest Service: no file or directory
No further resolution sorry.

Linux Boot Start program detailed