NAME
addrinfo, nameinfo - perform DNS lookups from scripts
SYNOPSIS
addrinfo [-46mnr] [HOSTNAMES]
nameinfo [-46n] [HOSTNAMES]
DESCRIPTON
Write addresses or canonical hostname of
specified names to the standard output. If no names are specified
via the command line, they are read from the standard input.
OPTIONS
- -4 or --ipv4
- Only try to perform IPv4 lookups.
- -4 or --ipv4
- Only try to perform IPv6 lookups.
- -h or --help
- Display some help and exit.
- -m or --multiple
- Normally, if a name yields multiple results, only the first one
is printed. With this optional parameter, all results will be
printed on a single line, separated by spaces.
- -n or --numeric
- Prevent forward hostname lookup. This ensures that the input
names are numeric addresses, which do not need to be looked up.
Typically used along with the --reverse option to convert numerical
addresses to canonical hostnames.
- -r or --reverse
- Perform a reverse DNS lookup (enabled implicitly with
addrinfo). addrinfo prints numerical resolved
addresses by default instead.
- --version
- Display program version and license and exit.
SEE ALSO
host(1),
getaddrinfo(3),
getnameinfo(3),
resolv.conf(5)
AUTHOR
R[char233]mi Denis-Courmont <rdenis at
simphalempin.com>
$Id: addrinfo.1 295 2006-09-13 18:17:36Z remi $