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Prints a list of ip that tried to login on SMTP/IMAP/POP3/etc.
Can be used in a firewall script, e.g. to avoid logging broadcast packtes.
Get the hour and greet the user!
Make sure you add this to your bashrc, for a pleasant hacking experience!
enable each bash completion that you have installed at your system, that's very nice ;)
Maybe not the quicker because of the sort command, but it will also look in other man sections.
updated with goodevilgenius 'shuf' idea
I just wanted a simple DNS request.
Because host and nslookup commands are not on all systems, we use getent instead.
Thanks aulem for that tip.
Gets the authors, sorts by number of commits (as a vague way of estimating how much of the project is their work, i.e. the higher in the list, the more they've done) and then outputs the results.
There is a common command for outputting a field or list of fields from each line in a file. Why wouldn't you just use cut?
Most systems (at least my macbook) have system users defined, such as _www and using "users" for example will not list them. This command allows you to see who the 'virtual' users are on your system.
I've been using it in a script to build from scratch proxy servers.
Simple and easy. No regex, no search and replace. Just clean, built-in tools.