Linux中 开机自启动目录

1、开机启动脚本

开机启动脚本是存放在 /etc/rc.d/rcX.d 目录中的，这里的X是runlevel，就是linux的运行级别，可以看到有rc0~rc6，共7种级别：

运行级别0：系统停机状态，系统默认运行级别不能设为0，否则不能正常启动
运行级别1：单用户工作状态，root权限，用于系统维护，禁止远程登陆
运行级别2：多用户状态(没有NFS)
运行级别3：完全的多用户状态(有NFS)，登陆后进入控制台命令行模式
运行级别4：系统未使用，保留
运行级别5：X11控制台，登陆后进入图形GUI模式
运行级别6：系统正常关闭并重启，默认运行级别不能设为6，否则不能正常启动

1. [root@wc1 Desktop]# pwd

2. /root/Desktop

3. [root@wc1 Desktop]# cd /etc/rc.d

4.  

5. [root@wc1 rc.d]# ls -l

6. total 60

7. drwxr-xr-x. 2 root root 4096 Aug 16 14:58 init.d

8. -rwxr-xr-x. 1 root root 2617 Oct 16 2014 rc

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9. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc0.d

10. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc1.d

11. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc2.d

12. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc3.d

13. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc4.d

14. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc5.d

15. drwxr-xr-x. 2 root root 4096 Aug 16 15:35 rc6.d

16. -rwxr-xr-x. 1 root root 220 Oct 16 2014 rc.local

17. -rwxr-xr-x. 1 root root 19914 Oct 16 2014 rc.sysinit

这里切换到rc3.d目录下，也就是完全的多用户模式：

1. [root@wc1 rc.d]# cd rc3.d

2. [root@wc1 rc3.d]# ls -l

3. total 0

4. lrwxrwxrwx. 1 root root 16 Aug 4 21:08 K01smartd -> ../init.d/smartd

5. lrwxrwxrwx. 1 root root 17 Aug 4 21:06 K02oddjobd -> ../init.d/oddjobd

6. lrwxrwxrwx. 1 root root 17 Aug 4 21:09 K05wdaemon -> ../init.d/wdaemon

7. lrwxrwxrwx. 1 root root 16 Aug 4 21:08 K10psacct -> ../init.d/psacct

8. lrwxrwxrwx. 1 root root 19 Aug 4 21:06 K10saslauthd -> ../init.d/saslauthd

9. lrwxrwxrwx. 1 root root 22 Aug 4 21:06 K15htcacheclean -> ../init.d/htcacheclean

10. lrwxrwxrwx. 1 root root 15 Aug 4 21:06 K15httpd -> ../init.d/httpd

11. lrwxrwxrwx. 1 root root 24 Aug 4 21:08 K30spice-vdagentd -> ../init.d/spice-vdagentd

12. lrwxrwxrwx. 1 root root 17 Aug 4 21:06 K50dnsmasq -> ../init.d/dnsmasq

13. lrwxrwxrwx. 1 root root 20 Aug 4 21:05 K50netconsole -> ../init.d/netconsole

14. lrwxrwxrwx. 1 root root 15 Aug 4 21:06 K50snmpd -> ../init.d/snmpd

15. lrwxrwxrwx. 1 root root 19 Aug 4 21:06 K50snmptrapd -> ../init.d/snmptrapd

16. lrwxrwxrwx. 1 root root 13 Aug 4 21:05 K60nfs -> ../init.d/nfs

17. lrwxrwxrwx. 1 root root 20 Aug 4 21:05 K69rpcsvcgssd -> ../init.d/rpcsvcgssd

18. lrwxrwxrwx. 1 root root 17 Aug 4 21:05 K73winbind -> ../init.d/winbind

19. lrwxrwxrwx. 1 root root 14 Aug 4 13:47 K74ntpd -> ../init.d/ntpd

20. lrwxrwxrwx. 1 root root 17 Aug 4 21:06 K75ntpdate -> ../init.d/ntpdate

21. lrwxrwxrwx. 1 root root 19 Aug 4 21:08 K75quota_nld -> ../init.d/quota_nld

22. lrwxrwxrwx. 1 root root 16 Aug 4 21:06 K76ypbind -> ../init.d/ypbind

23. lrwxrwxrwx. 1 root root 15 Aug 4 13:47 K80kdump -> ../init.d/kdump

24. lrwxrwxrwx. 1 root root 24 Aug 16 15:35 K84wpa_supplicant -> ../init.d/wpa_supplicant

25. lrwxrwxrwx. 1 root root 21 Aug 4 21:05 K87restorecond -> ../init.d/restorecond

26. lrwxrwxrwx. 1 root root 14 Aug 16 15:35 K88sssd -> ../init.d/sssd

27. lrwxrwxrwx. 1 root root 15 Aug 4 21:05 K89rdisc -> ../init.d/rdisc

28. lrwxrwxrwx. 1 root root 19 Aug 4 13:47 K95firstboot -> ../init.d/firstboot

29. lrwxrwxrwx. 1 root root 14 Aug 4 21:08 K99rngd -> ../init.d/rngd

30. lrwxrwxrwx. 1 root root 17 Aug 4 21:07 S01sysstat -> ../init.d/sysstat

31. lrwxrwxrwx. 1 root root 22 Aug 4 21:07 S02lvm2-monitor -> ../init.d/lvm2-monitor

32. lrwxrwxrwx. 1 root root 22 Aug 16 14:59 S03vmware-tools -> ../init.d/vmware-tools

33. lrwxrwxrwx. 1 root root 19 Aug 4 21:06 S08ip6tables -> ../init.d/ip6tables

34. lrwxrwxrwx. 1 root root 18 Aug 4 21:05 S08iptables -> ../init.d/iptables

35. lrwxrwxrwx. 1 root root 17 Aug 4 21:05 S10network -> ../init.d/network

36. lrwxrwxrwx. 1 root root 16 Aug 4 21:08 S11auditd -> ../init.d/auditd

37. lrwxrwxrwx. 1 root root 21 Aug 4 21:02 S11portreserve -> ../init.d/portreserve

38. lrwxrwxrwx. 1 root root 17 Aug 4 21:06 S12rsyslog -> ../init.d/rsyslog

39. lrwxrwxrwx. 1 root root 18 Aug 4 21:08 S13cpuspeed -> ../init.d/cpuspeed

40. lrwxrwxrwx. 1 root root 20 Aug 4 21:06 S13irqbalance -> ../init.d/irqbalance

41. lrwxrwxrwx. 1 root root 17 Aug 4 21:03 S13rpcbind -> ../init.d/rpcbind

42. lrwxrwxrwx. 1 root root 19 Aug 4 21:05 S15mdmonitor -> ../init.d/mdmonitor

43. lrwxrwxrwx. 1 root root 20 Aug 4 21:02 S22messagebus -> ../init.d/messagebus

44. lrwxrwxrwx. 1 root root 24 Aug 4 21:06 S23NetworkManager -> ../init.d/NetworkManager

45. lrwxrwxrwx. 1 root root 17 Aug 16 15:35 S24nfslock -> ../init.d/nfslock

46. lrwxrwxrwx. 1 root root 17 Aug 16 15:35 S24rpcgssd -> ../init.d/rpcgssd

47. lrwxrwxrwx. 1 root root 26 Aug 4 21:07 S25blk-availability -> ../init.d/blk-availability

48. lrwxrwxrwx. 1 root root 14 Aug 4 21:05 S25cups -> ../init.d/cups

49. lrwxrwxrwx. 1 root root 15 Aug 4 21:05 S25netfs -> ../init.d/netfs

50. lrwxrwxrwx. 1 root root 15 Aug 4 21:08 S26acpid -> ../init.d/acpid

51. lrwxrwxrwx. 1 root root 19 Aug 4 21:05 S26haldaemon -> ../init.d/haldaemon

52. lrwxrwxrwx. 1 root root 19 Aug 4 21:05 S26udev-post -> ../init.d/udev-post

53. lrwxrwxrwx. 1 root root 16 Aug 4 21:06 S28autofs -> ../init.d/autofs

54. lrwxrwxrwx. 1 root root 19 Aug 4 21:06 S50bluetooth -> ../init.d/bluetooth

55. lrwxrwxrwx. 1 root root 14 Aug 4 21:07 S55sshd -> ../init.d/sshd

56. lrwxrwxrwx. 1 root root 32 Aug 16 14:59 S57vmware-tools-thinprint -> ../init.d/vmware-tools-thinprint

57. lrwxrwxrwx. 1 root root 15 Aug 16 15:35 S64mysql -> ../init.d/mysql

58. lrwxrwxrwx. 1 root root 17 Aug 4 21:06 S80postfix -> ../init.d/postfix

59. lrwxrwxrwx. 1 root root 19 Aug 4 21:03 S82abrt-ccpp -> ../init.d/abrt-ccpp

60. lrwxrwxrwx. 1 root root 15 Aug 4 21:03 S82abrtd -> ../init.d/abrtd

61. lrwxrwxrwx. 1 root root 15 Aug 4 21:06 S90crond -> ../init.d/crond

62. lrwxrwxrwx. 1 root root 13 Aug 4 21:03 S95atd -> ../init.d/atd

63. lrwxrwxrwx. 1 root root 20 Aug 4 21:06 S99certmonger -> ../init.d/certmonger

64. lrwxrwxrwx. 1 root root 11 Aug 4 21:05 S99local -> ../rc.local

发现有很多K、S开头的后面跟着2位数字的文件，比如：K15httpd，K表示关闭，而15是指关闭的 优先级，也就是linux内核会按照系统预先设置好的runlevel，比如设置为3，那么就读取/etc/rc.d/rc3.d这个目录中的文件，然后按照先执行K开头，后执行S开头，并且从数字较小的开始执行，比如这里K15httpd，也就是排在第7个开始执行。

而且可以看到 K15httpd -> ../init.d/httpd ，也就是说 K15httpd是一个连接文件，连接到了相对于当前目录的上层目录下面的init.d/httpd，也就是目录/etc/rc.d/init.d ：

1. [root@wc1 rc3.d]# ls -l /etc/rc.d/init.d

2. total 408

3. -rwxr-xr-x. 1 root root 1288 Oct 16 2014 abrt-ccpp

4. -rwxr-xr-x. 1 root root 1628 Oct 16 2014 abrtd

5. -rwxr-xr-x. 1 root root 1642 Oct 16 2014 abrt-oops

6. -rwxr-xr-x. 1 root root 1725 Aug 19 2010 acpid

7. -rwxr-xr-x. 1 root root 2062 Jan 30 2012 atd

8. -rwxr-xr-x. 1 root root 3580 Oct 15 2014 auditd

9. -rwxr-xr-x. 1 root root 4043 Oct 16 2014 autofs

10. -r-xr-xr-x. 1 root root 1340 Oct 16 2014 blk-availability

11. -rwxr-xr-x. 1 root root 710 Nov 11 2010 bluetooth

12. -rwxr-xr-x. 1 root root 2094 Oct 16 2014 certmonger

13. -rwxr-xr-x. 1 root root 11355 Aug 13 2013 cpuspeed

14. -rwxr-xr-x. 1 root root 2826 Nov 23 2013 crond

15. -rwxr-xr-x. 1 root root 3034 Oct 15 2014 cups

16. -rwxr-xr-x. 1 root root 1734 Jun 16 2014 dnsmasq

17. -rwxr-xr-x. 1 root root 3245 Jul 9 2013 firstboot

18. -rw-r--r--. 1 root root 19295 Jul 22 2014 functions

19. -rwxr-xr-x. 1 root root 1801 Oct 15 2014 haldaemon

20. -rwxr-xr-x. 1 root root 5866 Jul 22 2014 halt

21. -rwxr-xr-x. 1 root root 2001 Oct 16 2014 htcacheclean

22. -rwxr-xr-x. 1 root root 3371 Oct 16 2014 httpd

23. -rwxr-xr-x. 1 root root 10804 Oct 15 2014 ip6tables

24. -rwxr-xr-x. 1 root root 10688 Oct 15 2014 iptables

25. -rwxr-xr-x. 1 root root 1938 Jun 2 2014 irqbalance

26. -rwxr-xr-x. 1 root root 19476 Oct 16 2014 kdump

27. -rwxr-xr-x. 1 root root 652 Jul 22 2014 killall

28. -r-xr-xr-x. 1 root root 2134 Oct 16 2014 lvm2-lvmetad

29. -r-xr-xr-x. 1 root root 2757 Oct 16 2014 lvm2-monitor

30. -rwxr-xr-x. 1 root root 2571 Sep 5 2014 mdmonitor

31. -rwxr-xr-x. 1 root root 2200 Sep 14 2012 messagebus

32. -rwxr-xr-x. 1 root root 10815 Jul 3 2013 mysql

33. -rwxr-xr-x. 1 root root 2989 Jul 22 2014 netconsole

34. -rwxr-xr-x. 1 root root 6064 Jul 22 2014 netfs

35. -rwxr-xr-x. 1 root root 6334 Jul 22 2014 network

36. -rwxr-xr-x. 1 root root 2205 Oct 15 2014 NetworkManager

37. -rwxr-xr-x. 1 root root 6878 Oct 16 2014 nfs

38. -rwxr-xr-x. 1 root root 3526 Oct 16 2014 nfslock

39. -rwxr-xr-x. 1 root root 1923 Jul 15 2013 ntpd

40. -rwxr-xr-x. 1 root root 2043 Jul 15 2013 ntpdate

41. -rwxr-xr-x. 1 root root 2261 Jun 25 2011 oddjobd

42. -rwxr-xr-x. 1 root root 2023 Apr 3 2012 portreserve

43. -rwxr-xr-x. 1 root root 3912 Feb 20 2014 postfix

44. -rwxr-xr-x. 1 root root 1556 Jul 17 2012 psacct

45. -rwxr-xr-x. 1 root root 2034 Mar 5 2014 quota_nld

46. -rwxr-xr-x. 1 root root 1513 Sep 17 2013 rdisc

47. -rwxr-xr-x. 1 root root 1822 Oct 16 2014 restorecond

48. -rwxr-xr-x. 1 root root 1808 Dec 18 2011 rngd

49. -rwxr-xr-x. 1 root root 2073 Feb 22 2013 rpcbind

50. -rwxr-xr-x. 1 root root 2518 Oct 16 2014 rpcgssd

51. -rwxr-xr-x. 1 root root 2305 Oct 16 2014 rpcidmapd

52. -rwxr-xr-x. 1 root root 2464 Oct 16 2014 rpcsvcgssd

53. -rwxr-xr-x. 1 root root 2011 Aug 15 2013 rsyslog

54. -rwxr-xr-x. 1 root root 1698 Oct 16 2014 sandbox

55. -rwxr-xr-x. 1 root root 2056 Jun 23 2014 saslauthd

56. -rwxr-xr-x. 1 root root 647 Jul 22 2014 single

57. -rwxr-xr-x. 1 root root 3002 Feb 22 2013 smartd

58. -rwxr-xr-x. 1 root root 2162 Sep 15 2014 snmpd

59. -rwxr-xr-x. 1 root root 1738 Sep 15 2014 snmptrapd

60. -rwxr-xr-x. 1 root root 2472 Oct 15 2014 spice-vdagentd

61. -rwxr-xr-x. 1 root root 4621 Oct 15 2014 sshd

62. -rwxr-xr-x. 1 root root 2690 Oct 16 2014 sssd

63. -rwxr-xr-x. 1 root root 1144 Oct 16 2014 sysstat

64. -rwxr-xr-x. 1 root root 2294 Oct 16 2014 udev-post

65. -rwxr-xr-x. 1 root root 38525 Aug 16 14:58 vmware-tools

66. -rwxr-xr-x. 1 root root 15208 Aug 16 14:58 vmware-tools-thinprint

67. -rwxr-xr-x. 1 root root 1674 Feb 22 2013 wdaemon

68. -rwxr-xr-x. 1 root root 1608 Oct 15 2014 winbind

69. -rwxr-xr-x. 1 root root 1866 Feb 4 2013 wpa_supplicant

70. -rwxr-xr-x. 1 root root 4799 Feb 22 2013 ypbind

71. [root@wc1 rc3.d]#

再来看一下/etc/rc.d/init.d/httpd文件的内容：

1. [root@wc1 rc3.d]# cat /etc/rc.d/init.d/httpd

2. #!/bin/bash

3. #

4. # httpd Startup script for the Apache HTTP Server

5. #

6. # chkconfig: - 85 15

7. # description: The Apache HTTP Server is an efficient and extensible \

8. # server implementing the current HTTP standards.

9. # processname: httpd

10. # config: /etc/httpd/conf/httpd.conf

11. # config: /etc/sysconfig/httpd

12. # pidfile: /var/run/httpd/httpd.pid

13. #

14. ### BEGIN INIT INFO

15. # Provides: httpd

16. # Required-Start: $local_fs $remote_fs $network $named

17. # Required-Stop: $local_fs $remote_fs $network

18. # Should-Start: distcache

19. # Short-Description: start and stop Apache HTTP Server

20. # Description: The Apache HTTP Server is an extensible server

21. # implementing the current HTTP standards.

22. ### END INIT INFO

23.  

24. # Source function library.

25. . /etc/rc.d/init.d/functions

26.  

27. if [ -f /etc/sysconfig/httpd ]; then

28. . /etc/sysconfig/httpd

29. fi

30.  

31. # Start httpd in the C locale by default.

32. HTTPD_LANG=${HTTPD_LANG-"C"}

33.  

34. # This will prevent initlog from swallowing up a pass-phrase prompt if

35. # mod_ssl needs a pass-phrase from the user.

36. INITLOG_ARGS=""

37.  

38. # Set HTTPD=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server

39. # with the thread-based "worker" MPM; BE WARNED that some modules may not

40. # work correctly with a thread-based MPM; notably PHP will refuse to start.

41.  

42. # Path to the apachectl script, server binary, and short-form for messages.

43. apachectl=/usr/sbin/apachectl

44. httpd=${HTTPD-/usr/sbin/httpd}

45. prog=httpd

46. pidfile=${PIDFILE-/var/run/httpd/httpd.pid}

47. lockfile=${LOCKFILE-/var/lock/subsys/httpd}

48. RETVAL=0

49. STOP_TIMEOUT=${STOP_TIMEOUT-10}

50.  

51. # The semantics of these two functions differ from the way apachectl does

52. # things -- attempting to start while running is a failure, and shutdown

53. # when not running is also a failure. So we just do it the way init scripts

54. # are expected to behave here.

55. start() {

56. echo -n $"Starting $prog: "

57. LANG=$HTTPD_LANG daemon --pidfile=${pidfile} $httpd $OPTIONS

58. RETVAL=$?

59. echo

60. [ $RETVAL = 0 ] && touch ${lockfile}

61. return $RETVAL

62. }

63.  

64. # When stopping httpd, a delay (of default 10 second) is required

65. # before SIGKILLing the httpd parent; this gives enough time for the

66. # httpd parent to SIGKILL any errant children.

67. stop() {

68. echo -n $"Stopping $prog: "

69. killproc -p ${pidfile} -d ${STOP_TIMEOUT} $httpd

70. RETVAL=$?

71. echo

72. [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}

73. }

74. reload() {

75. echo -n $"Reloading $prog: "

76. if ! LANG=$HTTPD_LANG $httpd $OPTIONS -t >&/dev/null; then

77. RETVAL=6

78. echo $"not reloading due to configuration syntax error"

79. failure $"not reloading $httpd due to configuration syntax error"

80. else

81. # Force LSB behaviour from killproc

82. LSB=1 killproc -p ${pidfile} $httpd -HUP

83. RETVAL=$?

84. if [ $RETVAL -eq 7 ]; then

85. failure $"httpd shutdown"

86. fi

87. fi

88. echo

89. }

90.  

91. # See how we were called.

92. case "$1" in

93. start)

94. start

95. ;;

96. stop)

97. stop

98. ;;

99. status)

100. status -p ${pidfile} $httpd

101. RETVAL=$?

102. ;;

103. restart)

104. stop

105. start

106. ;;

107. condrestart|try-restart)

108. if status -p ${pidfile} $httpd >&/dev/null; then

109. stop

110. start

111. fi

112. ;;

113. force-reload|reload)

114. reload

115. ;;

116. graceful|help|configtest|fullstatus)

117. $apachectl $@

118. RETVAL=$?

119. ;;

120. *)

121. echo $"Usage: $prog {start|stop|restart|condrestart|try-restart|force-reload|reload|status|fullstatus|graceful|help|configtest}"

122. RETVAL=2

123. esac

124.  

125. exit $RETVAL

126. [root@wc1 rc3.d]#

2、另一个开机自启动目录

这个目录就是：/etc/init.d，目录里也存放了开机自启动脚本。

不过可以发现这个目录只不过是一个连接目录，实际上对应的就是/etc/rc.d/init.d，也就是上面讲到的目录，目录中的文件和/etc/rc.d/init.d 中的文件完全一致。

1. [root@wc1 rc3.d]# ls -l /etc/init.d

2. lrwxrwxrwx. 1 root root 11 Aug 4 21:02 /etc/init.d -> rc.d/init.d

3.  

4. [root@wc1 rc3.d]# ls -l /etc/init.d/

5. total 408

6. -rwxr-xr-x. 1 root root 1288 Oct 16 2014 abrt-ccpp

7. -rwxr-xr-x. 1 root root 1628 Oct 16 2014 abrtd

8. -rwxr-xr-x. 1 root root 1642 Oct 16 2014 abrt-oops

9. -rwxr-xr-x. 1 root root 1725 Aug 19 2010 acpid

10. -rwxr-xr-x. 1 root root 2062 Jan 30 2012 atd

11. -rwxr-xr-x. 1 root root 3580 Oct 15 2014 auditd

12. -rwxr-xr-x. 1 root root 4043 Oct 16 2014 autofs

13. -r-xr-xr-x. 1 root root 1340 Oct 16 2014 blk-availability

14. -rwxr-xr-x. 1 root root 710 Nov 11 2010 bluetooth

15. -rwxr-xr-x. 1 root root 2094 Oct 16 2014 certmonger

16. -rwxr-xr-x. 1 root root 11355 Aug 13 2013 cpuspeed

17. -rwxr-xr-x. 1 root root 2826 Nov 23 2013 crond

18. -rwxr-xr-x. 1 root root 3034 Oct 15 2014 cups

19. -rwxr-xr-x. 1 root root 1734 Jun 16 2014 dnsmasq

20. -rwxr-xr-x. 1 root root 3245 Jul 9 2013 firstboot

21. -rw-r--r--. 1 root root 19295 Jul 22 2014 functions

22. -rwxr-xr-x. 1 root root 1801 Oct 15 2014 haldaemon

23. -rwxr-xr-x. 1 root root 5866 Jul 22 2014 halt

24. -rwxr-xr-x. 1 root root 2001 Oct 16 2014 htcacheclean

25. -rwxr-xr-x. 1 root root 3371 Oct 16 2014 httpd

26. -rwxr-xr-x. 1 root root 10804 Oct 15 2014 ip6tables

27. -rwxr-xr-x. 1 root root 10688 Oct 15 2014 iptables

28. -rwxr-xr-x. 1 root root 1938 Jun 2 2014 irqbalance

29. -rwxr-xr-x. 1 root root 19476 Oct 16 2014 kdump

30. -rwxr-xr-x. 1 root root 652 Jul 22 2014 killall

31. -r-xr-xr-x. 1 root root 2134 Oct 16 2014 lvm2-lvmetad

32. -r-xr-xr-x. 1 root root 2757 Oct 16 2014 lvm2-monitor

33. -rwxr-xr-x. 1 root root 2571 Sep 5 2014 mdmonitor

34. -rwxr-xr-x. 1 root root 2200 Sep 14 2012 messagebus

35. -rwxr-xr-x. 1 root root 10815 Jul 3 2013 mysql

36. -rwxr-xr-x. 1 root root 2989 Jul 22 2014 netconsole

37. -rwxr-xr-x. 1 root root 6064 Jul 22 2014 netfs

38. -rwxr-xr-x. 1 root root 6334 Jul 22 2014 network

39. -rwxr-xr-x. 1 root root 2205 Oct 15 2014 NetworkManager

40. -rwxr-xr-x. 1 root root 6878 Oct 16 2014 nfs

41. -rwxr-xr-x. 1 root root 3526 Oct 16 2014 nfslock

42. -rwxr-xr-x. 1 root root 1923 Jul 15 2013 ntpd

43. -rwxr-xr-x. 1 root root 2043 Jul 15 2013 ntpdate

44. -rwxr-xr-x. 1 root root 2261 Jun 25 2011 oddjobd

45. -rwxr-xr-x. 1 root root 2023 Apr 3 2012 portreserve

46. -rwxr-xr-x. 1 root root 3912 Feb 20 2014 postfix

47. -rwxr-xr-x. 1 root root 1556 Jul 17 2012 psacct

48. -rwxr-xr-x. 1 root root 2034 Mar 5 2014 quota_nld

49. -rwxr-xr-x. 1 root root 1513 Sep 17 2013 rdisc

50. -rwxr-xr-x. 1 root root 1822 Oct 16 2014 restorecond

51. -rwxr-xr-x. 1 root root 1808 Dec 18 2011 rngd

52. -rwxr-xr-x. 1 root root 2073 Feb 22 2013 rpcbind

53. -rwxr-xr-x. 1 root root 2518 Oct 16 2014 rpcgssd

54. -rwxr-xr-x. 1 root root 2305 Oct 16 2014 rpcidmapd

55. -rwxr-xr-x. 1 root root 2464 Oct 16 2014 rpcsvcgssd

56. -rwxr-xr-x. 1 root root 2011 Aug 15 2013 rsyslog

57. -rwxr-xr-x. 1 root root 1698 Oct 16 2014 sandbox

58. -rwxr-xr-x. 1 root root 2056 Jun 23 2014 saslauthd

59. -rwxr-xr-x. 1 root root 647 Jul 22 2014 single

60. -rwxr-xr-x. 1 root root 3002 Feb 22 2013 smartd

61. -rwxr-xr-x. 1 root root 2162 Sep 15 2014 snmpd

62. -rwxr-xr-x. 1 root root 1738 Sep 15 2014 snmptrapd

63. -rwxr-xr-x. 1 root root 2472 Oct 15 2014 spice-vdagentd

64. -rwxr-xr-x. 1 root root 4621 Oct 15 2014 sshd

65. -rwxr-xr-x. 1 root root 2690 Oct 16 2014 sssd

66. -rwxr-xr-x. 1 root root 1144 Oct 16 2014 sysstat

67. -rwxr-xr-x. 1 root root 2294 Oct 16 2014 udev-post

68. -rwxr-xr-x. 1 root root 38525 Aug 16 14:58 vmware-tools

69. -rwxr-xr-x. 1 root root 15208 Aug 16 14:58 vmware-tools-thinprint

70. -rwxr-xr-x. 1 root root 1674 Feb 22 2013 wdaemon

71. -rwxr-xr-x. 1 root root 1608 Oct 15 2014 winbind

72. -rwxr-xr-x. 1 root root 1866 Feb 4 2013 wpa_supplicant

73. -rwxr-xr-x. 1 root root 4799 Feb 22 2013 ypbind

3、总结

/etc/rc.d/rcX.d 目录下面的文件是连接文件，连接到/etc/rc.d/init.d 目录下的文件，而/etc/init.d 目录就是链接目录，连接到 /etc/rc.d/init.d 目录。