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SendSignal is an application that allows you to send signals to processes. You might not know it, but you may actually have sent a signal before without knowing it.

When you use the Force Quit dialog from the Apple menu or Command+Option+Esc, you are actually sending a signal, called SIGKILL, to the application you chose in the list. This signal forces an application or process to end, regardless of what it's doing.

There are many more signals besides SIGKILL, such as SIGTERM (quit), and SIGABRT (abort). Many of these are useful when programs freeze, yet they are normally difficult to use and require typing commands more...

What's New

Version 1.1:
  • Changed from SignalSender to SendSignal, added option to run as root.


Mac OS X 10.5 or later (not tested on, but should work with 10.4 and up).

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Current Version (1.x)


Downloads 483
Version Downloads 483
Type Utilities / System
License Free
Date 17 Dec 2007
Platform OS X / PPC 32 / Intel 32
Price Free
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