Mac OS X Bash托管脚本

Question

After adding a hosting file using etc/hosts on Mac OS X machines manually we found out we needed to remove the current hosts and add a new one. I'm wondering if it's possible to add a hosting file for Mac OS X using Bash.

This is the current state. How do we change the final line or add one to it?

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1             localhost Computer_Name
255.255.255.0     broadcasthost
::1                        localhost
10.24.82.5           server_name

Answer 1

I guess you are asking how to edit the file from the command line, then

$ sed -i.OLD 's@10\.24\.82\.5 @8.8.8.8 @' /etc/hosts

The -i option allows sed to edit in-place. You may need sudo to have write permission to that file.

Answer 2

您可以简单地使用sed进行更改，只需提供新的IP地址即可：

sed 's/^.*\(server_name\)/new_ip_address \1/' file