Linux: Find my IP address using Perl at a shell prompt
Q. How do I find out my IP address assigned to eth0 or ra0 interface using perl?
A. If you need to know the IP address of the UNIX / Linux machine you are running on, use the following perl one liner. Perl don't have any inbuilt facility but combination of ifconfig command ans shell pipes you can craft something as follows to display your system IP address:
Find my IP address using Perl One liner and shell pipes
Type the following command at a shell prompt:
ifconfig -a | perl -ne 'if ( m/^\s*inet (?:addr:)?([\d.]+).*?cast/ ) { print qq($1\n); exit 0; }'
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Tags: combination, find_my_ip_address, inet_addr, interface, linux_machine, my_ip_address, Perl, pipes, qq, shell, unix_linux ~ Last updated on: October 18, 2007
October 23rd, 2007 at 1:26 pm
thanks really helpful!
November 7th, 2007 at 10:42 pm
For non-root users, put /sbin/ in front of the ifconfig line, so it becomes
/sbin/ifconfig -a | perl -ne 'if ( m/^\s*inet (?:addr:)?([\d.]+).*?cast/ ) { print qq($1\n); exit 0; }’