如何使用bash shell找到我的电脑的IP地址？ [英] How do I find my computer's IP address using the bash shell?

问题描述

每隔一段时间，我需要启动Django开发服务器，并可以在我的网络上由其他机器查看，如下所述：

Every now and again, I need to start the Django development server, and have it viewable by other machines on my network, as described here:

http://docs.djangoproject.com/en/dev/ref/django-admin /＃runserver

我的机器的IP地址往往会一次又一次地改变，所以我想要一个小的shell别名或者吐出来的东西manage.py命令与我的机器的当前IP地址，可能是这样的：

My machine’s IP address tends to change every now and again, so I’d like to have a little shell alias or something that spits out the manage.py command with my machine’s current IP address, maybe like this:

python manage.py runserver $(COMMAND TO FIND MY MACHINE’S IP ADDRESS GOES HERE):8000

推荐答案

ifconfig en0 | grep inet | grep -v inet6

以上输出预计将采用以下形式：

Output of above is expected to be in the following form:

inet 192.168.111.1网络掩码0xffffff00广播192.168.111.255

添加一个awk语句打印第二个列避免使用cut（awk是一个非常标准的unix工具）：

Add an awk statement to print the second column to avoid using cut (awk is a pretty standard unix tool):

ifconfig en0 | grep inet | grep -v inet6 | awk '{print $2}'

我在LAN上使用以下内容获取当前的IP IP的前几个数字总是相同的（用你自己的数字替换192.168.111）：

I use the following to get the current IP when on a LAN where the first few numbers of the IP are always the same (replace 192.168.111 with your own numbers):

ifconfig | grep 192.168.111 | awk '{print $2}'

要获取您知道名称的另一台机器的ip，尝试（用你自己的值替换主机名和192.168.111）：

To get the ip of another machine that you know the name of, try (replace hostname and 192.168.111 with your own values):

ping -c 1 hostname | grep 192.168.11 | grep 'bytes from' | awk '{print $4}' | sed 's/://g'

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