Difference between revisions of "Useful commands"
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grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}" maillog | sort | uniq -c | grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}" maillog | sort | uniq -c | ||
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Revision as of 15:34, 14 December 2018
Parsing internet addresses from a log file, sorting, counting;
grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}" maillog | sort | uniq -c