Linux:

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Merge two files into one:

  cat file1.txt file2.txt > mergedfile.txt

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Hide Error Messages from Output:

  cmd-used 2>/dev/null

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Quick Banner-grab:

  nc 192.168.1.1 445

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Generate Password List (8+ Characters):

  cat  ./master.lst | uniq -u > ./tempu.txt  | cat ./tempu.txt| grep -vwE '\w{1,7}' > pswd8plus.txt

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Filter List of Service Listeners based on Port:

  lsof -i -n -P | grep 21

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