addr2name (1) Linux Manual Page
addr2name, 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. Options-4 or –ipv4 Only try to perform IPv4 lookups. -6 or –ipv6 Only…
