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List upcoming events on google calendar
Requires googlecl (http://code.google.com/p/googlecl/) Even better when you wrap this in a script and allow the --date=STRING to be $1. Then you can type: whatson "next Thursday" The date string for UNIX date is very flexible. You can also add --cal "[regex]" to the end for multiple calendars.

add static arp entry to default gateway, arp poison protection

Comment out all lines in a file beginning with string

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Suspend to ram

Find how much of your life you've wasted coding in the current directory
Finds all C++, Python, SWIG files in your present directory (uses "*" rather than "." to exclude invisibles) and counts how many lines are in them. Returns only the last line (the total).

Sort a one-per-line list of email address, weeding out duplicates

Ping all hosts on 192.168.1.0/24

Route outbound SMTP connections through a addtional IP address rather than your primary


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