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Commands using nslookup from sorted by
Terminal - Commands using nslookup - 8 results
nslookup www.example.com | tail -2 | head -1 | awk '{print $2}'
2013-09-05 20:26:45
User: wsams
Functions: awk head nslookup tail
1

I'm not sure how reliable this command is, but it works for my needs. Here's also a variant using grep.

nslookup www.example.com | grep "^Address: " | awk '{print $2}'

IP=$(nslookup `hostname` | grep -i address | awk -F" " '{print $2}' | awk -F# '{print $1}' | tail -n 1 ); R=3$((RANDOM%6 + 1)); PS1="\n\[\033[1;37m\]\u@\[\033[1;$R""m\]\h^$IP:\[\033[1;37m\]\w\$\[\033[0m\] "
2010-10-20 07:29:14
User: rubo77
Functions: awk grep nslookup tail
0

this adds a random color to your prompt and the external ip.

useful if you are using multiple mashines with the same hostname.

nslookup -q=txt <topic>.wp.dg.cx
nslookup {ip}
nslookup commandlinefu.com|sed 's/[^0-9. ]//g'|tail -n 1|awk -F " " '{print $2}'
2009-08-07 17:32:55
User: thundernode
Functions: awk nslookup sed tail
1

I use this in a script on my openwrt router to check if my DynDNS needs to be updated, saves your account from being banned for blank updates.

nslookup -q=txt -class=CHAOS version.bind NS.PHX5.NEARLYFREESPEECH.NET
newhostname=$(hostname | awk -F. '{print $1 "." $2}'); ipaddress=$(nslookup `hostname` | grep -i address | awk -F" " '{print $2}' | awk -F. '{print $3 "." $4}' | grep -v 64.142);PS1="[`id -un`.$newhostname.$ipaddress]"' (${PWD}): '; export PS1
2009-02-16 20:11:53
User: simardd
-4

changes the PS1 to something better than default.

[username.hostname.last-2-digits-of-ip] (current directory)

NAME=$(nslookup $IP | sed -n 's/.*arpa.*name = \(.*\)/\1/p'); test -z "$NAME" && NAME="NO_NAME"; echo "$NAME"