ipv4: (([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]).){3}([1-9]?[0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]) ipv6: ([A-Fa-f0-9]{1,4}:){7}[A-Fa-f0-9]{1,4} MAC: (([a-fA-F0-9]{1,2}-){5})([a-fA-F0-9]{1,2}) FQDN: (([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]).)*([A-Za-z]|[A-Za-z][A-Za-z0-9-]*[A-Za-z0-9])
# Works with dash “-” and colon “:” as a separator # The “/i” modifier at the end makes it case-insensitive (Perl-like syntax) /^([0-9A-F]{2}[:-]){5}[0-9A-F]{2}$/i #… Read More »A MAC address regex
perl -ple ‘s/num/$n++/e’ filename
while($addr !~ /^([O1]?\d\d?|2[0-4]\d|25[0-5])\.([O1]?\d\d?|2[0-4]\d|25[0-5])\.([O1]?\d\d?|2[0-4]\d|25[0-5])\.([O1]?\d\d?|2[0-4]\d|25[0-5])$/){ print “Please give the IP address of the remote server:\n“; … Read More »Perl – Expression régulière pour tester la validité d’une adresse IP
server { server_name mysite.tld ~^.+.mysite.tld$; map $host $files { default common; mysite.tld common; www.mysite.tld common; admin.mysite.tld admin; system.mysite.tld system; *.mysite.tld users; } root /var/www/mysite/$files; }