RHEL5.X 重启网卡出现./network-functions: line 78: .: ifcfg-eth0: file not found

错误信息：

红帽RHEL5.5系统，重启网卡报错

[root@localhost network-scripts]# service network restart
Shutting down interface eth0: ./network-functions: line 78: .: ifcfg-eth0: file not found
                                                           [ OK ]
Shutting down loopback interface: ./network-functions: line 78: .: ifcfg-lo: file not found
                                                           [ OK ]
Bringing up loopback interface: ./network-functions: line 78: .: ifcfg-lo: file not found
Missing config file ifcfg-ifcfg-lo.
                                                           [ OK ]
Bringing up interface eth0: ./network-functions: line 78: .: ifcfg-eth0: file not found
Missing config file ifcfg-ifcfg-eth0.
                                                           [ OK ]

问题原因：

/etc/sysconfig/network-scripts/network-functions fails under bash 4.1.
The reason is that bash 4 fixed a bug in the source function (http://tiswww.case.edu/php/chet/bash/COMPAT) that cause the function to include the current directory in the path when sourcing files.

解决方法：

在78行中，修改  . $CONFIG 为   . ./$CONFIG

Line 78 in network-functions is ". $CONFIG" which means it wouldn't work if bash hadn't that bug.
It should be changed to ". ./$CONFIG" which solves the problem.