[求助]如何取得本机IP并赋给某变量?

galaxy001

我就想到ifconfig,但它的输出在第二行,要如何写grep呢?

我需要像 123.123.123.123 那样的(不含空格的)结果

netman網中人

my_ip=`/sbin/ifconfig eth0 | awk '/inet addr/{print $2}' | cut -d: -f2`

seker

[root@stu3 etc]# ip ad sh
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:0c:29:4f:a6:bd brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.4/24 brd 192.168.1.255 scope global eth0
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:0c:29:4f:a6:c7 brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.10/8 brd 10.255.255.255 scope global eth1
[root@stu3 etc]#

[root@stu3 etc]# ipaddr=$(ip ad sh to 0/0 scope global | awk '/[[:space:]]inet / { print gensub("/.*","","g",$2) }')

[root@stu3 etc]# echo $ipaddr
192.168.1.4 10.10.10.10
[root@stu3 etc]#

[root@stu3 etc]# ip ad sh eth0 to 0/0 scope global | awk '/[[:space:]]inet / { print gensub("/.*","","g",$2) }'
192.168.1.4
[root@stu3 etc]#

galaxy001

awk那个看懂了.

3楼的ip是哪个软件包的?

我当然是用ifconfig,但对显示mtu的工具有些好奇.

seker

Post by galaxy001;1806261
awk那个看懂了.

3楼的ip是哪个软件包的?

我当然是用ifconfig,但对显示mtu的工具有些好奇.

[root@stu3 245-124]# rpm -qf $(which ip)
iproute-2.6.18-4.el5
[root@stu3 245-124]#

huan

不少发行版默认都没装iproute， 还是老实用ifconfig吧

e4twood

myip=hostname -i

springwind426

2. ifconfig eth0 | sed -n '/inet/{s/.*addr:\([^ ]*\).*/\1/p}'
4. 或者
6. ifconfig eth0 | grep -o 'addr:[^ ]*' | grep -o '[0-9.]*'

复制代码

晨想

http://www.linuxsir.cn/bbs/thread21008.html

zzv

我的作法是ifconfig eth0 | awk '/inet addr/{print $2}' | sed 's/addr://g'
第一次看到还有cut这么个命令，以前只会sed