Created
November 12, 2016 14:54
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bash_script.example
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##################################################################### | |
# 1. the input for the script at (2) -- e.g. from a database query | |
##################################################################### | |
# | |
# client_addr | count | |
#----------------+------- | |
# 172.217.16.35 | 45 | |
# | 1 | |
# 62.153.159.92 | 15 | |
# 217.72.219.144 | 24 | |
#(9 rows) | |
# | |
################################################ | |
# 2. apply classic pipes & filters on the input | |
################################################ | |
#!/usr/bin/env bash | |
result=$(tail -n +3 < data.txt | awk 'BEGIN{FS="|"}{print $1,$2}') | |
echo "$result" | grep -iv rows | while read ip count; do | |
if [ "$ip" != '' ] && [ "$count" != '' ]; then | |
name=$(nslookup $ip | sed -n -e 's/^.*name = \(.*\)$/\1/p' | head -n 1) | |
echo "$name $count" | |
fi | |
done | awk 'BEGIN{count=0}{count+=$2}{print $0}END{print "Gesamt", count}' | |
####################### | |
# 3. the output | |
####################### | |
$ ./execute_the_above_script.sh | |
muc03s08-in-f35.1e100.net. 45 | |
www.t-online.de. 15 | |
144.boerse.de. 24 | |
Gesamt 84 |
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