Thread: [SCRIPT] - Ad-Blocking - Hosts file method
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Manatus is offline Manatus
2015-02-18 , 14:42
Posts: 334 | Thanked: 616 times | Joined on Sep 2010
#8
With:
Code:
cat hosts.txt | grep -v ^# | cut -d "#" -f 1 | grep -v localhost >> /etc/hosts.tmp && cat /etc/hosts.base /etc/hosts.tmp >> /etc/hosts && rm /etc/hosts.tmp && sed 's/^ *//; s/ *$//; /$/d' /etc/hosts
evil.com and now im.malicious.com from previous example still got through.

But with:
Code:
cat hosts.txt | grep -v "#" | grep -v localhost >> /etc/hosts.tmp && cat /etc/hosts.base /etc/hosts.tmp >> /etc/hosts && rm /etc/hosts.tmp && sed 's/^ *//; s/ *$//; /$/d' /etc/hosts
it works. Since #-char has no purpose (except in malicious intent here), you can grep the lines with them all away.