...
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for i in `seq 37 47`; do apt-get -yy purge linux-image-3.2.0-$i-virtual linux-headers-3.2.0-$i; rm -rfv /lib/modules/3.2.0-$i-virtual; done |
Removing set of e-mail address from another set of email address
List of address with optional names, separated by whitespace:
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visser@rasputin:~$ cat addresses.txt
dick@TIENHUIS.nl Dick Visser
dnmvisser@Gmail.CoM Dick "Gmail" Visser
dnmvisser@yahoo.com
dick.visser@geant.org Dick Visser
visser@terena.org Dick's old address... |
Similar for a blacklist:
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visser@rasputin:~$ cat blacklist.txt
Dnmvisser@gmail.com Evil guy |
You can 'subtract' the blacklist using this Ruby one line:
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visser@rasputin:~$ ruby -e 'a = File.readlines("addresses.txt").map { |x| x.split.first.downcase } - File.readlines("blacklist.txt").map { |x| x.split.first.downcase }; puts a'
dick@tienhuis.nl
dnmvisser@yahoo.com
dick.visser@geant.org
visser@terena.org |