How to get ip address of a server on Centos 7 in bash

Question

Previously I used the following command in bash to find the main ip of my server  ipaddr    sbin ifconfig grep inet head -1 sed  s        awk   print  3     grep -v  127 0 0 1     But in centos7 it no longer works since ifconfig isn t available and the command no longer works even if I install ifconfig using yum install net-tools  What is the equivalent command for centos 7  Thanks a lot

User · Answer

Actually  when you do not want to use external sources  or cannot   I would recommend   DEVICE   ls -l  sys class net   awk   NF  pci0    print   NF-2   exit     IPADDR   ip -br address show dev  DEVICE   awk   print substr  3 1 index  3     -1        The first line gets the name of the first network device on the PCI bus  the second one gives you its IP address   BTW ps       grep       awk     stinks  awk does not need grep

User · Answer

You can run simple commands like  curl ifconfig co  curl ifconfig me  wget -qO - icanhazip com

User · Answer

Ref  https   garbagevalue com blog 4-simle-ways-to-check-ip-adress-in-centos-7  I m using CentOS 7 and command ip a is enough to do the job   Edit Just slice out the IP address part from that test  ip a   grep 192

User · Answer

Something like this - a riff on  maarten-vanlinthout s answer  ip  -f inet a show eth0  grep inet  awk    print  2     cut -d  -f1

User · Answer

Bit late however I use   curl -4 icanhazip com    returns the server Primary IP address

User · Answer

hostname -I   awk    print  1

User · Answer

Enter the command ip addr at the console

User · Answer

SERVER IP    ip addr show ens160   grep  inet     cut -f2   awk    print  2       replace ens160 with your interface name

User · Answer

I believe that the most reliable way to get the external server ip address would be to use an external service   ipaddr   curl -s http   whatismyip akamai com

User · Answer

You can use hostname command    ipaddr   hostname -I       -i  --ip-address        Display the IP address es  of the host  Note that this works only if the host name can be resolved        -I  --all-ip-addresses        Display all network addresses of the host  This option enumerates all configured addresses on all network interfaces  The loopback interface and IPv6 link-local addresses are omitted  Contrary to option -i  this option does not depend on name resolution  Do not make any assumptions about the order of the output

User · Answer

Run this command to show ip4 and ip6   ifconfig eth0   grep inet   awk   print  2     cut -d  -f1

[bash] How to get ip address of a server on Centos 7 in bash

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