Añadir 'ip2host.sh'

ip2host.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+if [ -z "$1" ]
+then
+    echo "You must specify a filename to read from"
+    exit 1;
+fi
+if [ ! -f "$1" ]
+then
+    echo "File $1 does not exist or is not a file"
+    exit 1;
+fi
+while read ip n
+do
+   # Uncomment following to use /etc/hosts
+   # name=$(awk -v ip=$ip '$1 ~ ip{print $2}' /etc/hosts)
+   # Uncomment following to use nslookup
+   # name=$(nslookup $ip| grep "name ="|sed 's/.*=//')
+   # Uncomment following line to use dig (thanks to Charles Duffy)
+   #name=$(dig +short -x $ip)i
+   resolvedIP=$(dig +short -x "$ip")
+   [[ -z "$resolvedIP" ]] && echo "$ip" lookup failure || echo "$ip" resolved to "$resolvedIP"
+done < $1