How to grep 3 results from the whois command at once? - bash

Question

Bash 4.3
Ubuntu 16.04
Each while read loop takes me a little under a second to accomplish. How can I grep for 3 results at the same time?
#!/bin/bash
#-- tmp files
tmp_dir="$(mktemp -d -t 'text.XXXXX' || mktemp -d 2>/dev/null)"
tmp_input1="${tmp_dir}/temp_input1.txt"
tmp_input2="${tmp_dir}/temp_input2.txt"
wDir="/home/work"
list="${wDir}/.ip-list.txt"
finalResults="${wDir}/final-results.txt"
cd "$wDir"
awk '{ print $11 }' "$list" | sort -u > "$tmp_input1"
while read ip; do
echo "-- IP Address: $ip" >> "$tmp_input2"
whois "$ip" | grep inetnum >> "$tmp_input2"
whois "$ip" | grep route >> "$tmp_input2"
whois "$ip" | grep mnt-by | head -n 2 | sed -n '1!p' >> "$tmp_input2"
echo "" >> "$tmp_input2"
done<"$tmp_input1"
mv "$tmp_input2" "$finalResults"
cat "$finalResults"
rm -rf "$tmp_dir"
Here is my .ip-list.txt file
> Tue Oct 16 21:15:59 2018 TCP 147.135.23.98 80 => 95.217.197.238 62293
> Tue Oct 16 21:16:52 2018 TCP 147.135.23.98 1160 => 95.217.243.116 44076
> Tue Oct 16 21:16:51 2018 TCP 147.135.23.98 1160 => 159.69.253.26 43842
> Tue Oct 16 21:16:47 2018 TCP 147.135.23.98 1160 => 95.217.49.21 13288
> Tue Oct 16 21:16:18 2018 TCP 147.135.23.98 80 => 95.217.223.72 21969
> Tue Oct 16 21:16:42 2018 TCP 147.135.23.98 1160 => 95.216.232.46 9834
> Tue Oct 16 21:16:54 2018 TCP 147.135.23.98 1160 => 88.198.149.27 23388
> Tue Oct 16 21:15:57 2018 TCP 147.135.23.98 80 => 95.217.72.11 38498
> Tue Oct 16 21:16:41 2018 TCP 147.135.23.98 1160 => 159.69.250.160 8549
> Tue Oct 16 21:16:27 2018 TCP 147.135.23.98 80 => 95.217.57.97 52546
> Tue Oct 16 21:16:28 2018 TCP 147.135.23.98 80 => 95.216.225.43 60635
> Tue Oct 16 21:16:32 2018 TCP 147.135.23.98 80 => 213.239.244.5 17729
> Tue Oct 16 21:16:05 2018 TCP 147.135.23.98 80 => 95.217.27.233 24669
> Tue Oct 16 21:16:46 2018 TCP 147.135.23.98 1160 => 94.130.60.83 21203
> Tue Oct 16 21:16:52 2018 TCP 147.135.23.98 1160 => 95.217.191.48 1070
> Tue Oct 16 21:16:22 2018 TCP 147.135.23.98 80 => 95.217.219.152 15617
> Tue Oct 16 21:16:44 2018 TCP 147.135.23.98 1160 => 95.217.35.111 55808
> Tue Oct 16 21:16:46 2018 TCP 147.135.23.98 1160 => 95.216.224.158 37768
> Tue Oct 16 21:16:13 2018 TCP 147.135.23.98 80 => 159.69.241.84 24365
> Tue Oct 16 21:16:21 2018 TCP 147.135.23.98 80 => 95.217.169.49 33710
> Tue Oct 16 21:16:07 2018 TCP 147.135.23.98 80 => 95.217.186.121 21758
> Tue Oct 16 21:16:00 2018 TCP 147.135.23.98 80 => 78.47.228.239 21199
> Tue Oct 16 21:16:30 2018 TCP 147.135.23.98 80 => 95.217.23.171 8670
> Tue Oct 16 21:16:49 2018 TCP 147.135.23.98 1160 => 95.216.244.96 22087
> Tue Oct 16 21:16:20 2018 TCP 147.135.23.98 80 => 95.217.64.54 13638
> Tue Oct 16 21:16:40 2018 TCP 147.135.23.98 1160 => 95.217.55.104 3377
> Tue Oct 16 21:16:09 2018 TCP 147.135.23.98 80 => 95.217.242.169 13627
> Tue Oct 16 21:16:54 2018 TCP 147.135.23.98 1160 => 95.217.192.169 6566
> Tue Oct 16 21:16:53 2018 TCP 147.135.23.98 1160 => 95.217.101.221 41547
> Tue Oct 16 21:16:54 2018 TCP 147.135.23.98 1160 => 159.69.227.235 62092
> Tue Oct 16 21:16:45 2018 TCP 147.135.23.98 1160 => 95.217.235.228 63643
> Tue Oct 16 21:16:08 2018 TCP 147.135.23.98 80 => 95.216.227.162 51332
> Tue Oct 16 21:16:54 2018 TCP 147.135.23.98 1160 => 95.217.68.128 38480
There are hundreds of lines.
How can I make these commands more efficient? Can they be combined?
whois "$ip" | grep inetnum >> "$tmp_input2"
whois "$ip" | grep route >> "$tmp_input2"
whois "$ip" | grep mnt-by | head -n 2 | sed -n '1!p' >> "$tmp_input2"

Answer 1

Write output of whois "$ip" to a variable and use variable:
grep -e 'inetnum' -e 'route' <<< "$out" >> "$tmp_input2"
grep 'mnt-by' <<< "$out" | sed '2!d' >> "$tmp_input2"

Answer 2

Not in this way.
The first two greps, you can replace by
whois "$ip" | egrep 'inetnum|route' >> "$tmp_input2"
But because you put the third grep is put through additional filters, you cannot add that one to the egrep.
But grep is not the problem; whois is the big time consumer. And you run it multiple times.
So, it would be a good idea to limit the number of whois-es.
hop=$(mktemp)
while read ip; do
echo "-- IP Address: $ip" >> "$tmp_input2"
whois "$ip" > $hop
grep inetnum $hop >> "$tmp_input2"
grep route $hop >> "$tmp_input2"
grep mnt-by $hop | head -n 2 | sed -n '1!p' >> "$tmp_input2"
echo "" >> "$tmp_input2"
done<"$tmp_input1
rm -f $hop