addr2name (1) - Linux Man Pages
addr2name: perform DNS lookups from scripts
NAMEaddr2name, name2addr - perform DNS lookups from scripts
SYNOPSISaddr2name [-46cmnr] [HOSTNAMES]
name2addr [-46cn] [HOSTNAMES]
DESCRIPTONWrite 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.
- -4 or --ipv4
Only try to perform IPv4 lookups.
- -6 or --ipv6
Only try to perform IPv6 lookups.
- -c or --config
Only lookup and print results for address families that match locally
configured addresses (If the system has no IPv4 resp IPv6 address,
then IPv4 resp IPv6 addresses are ignored).
- -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 addr2name).
addr2name prints numerical resolved addresses by default instead.
Display program version and license and exit.
AUTHORR33mi Denis-Courmont <remi at remlab dot net>