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3.3.3. Command-Line Arguments
You can also allow a SystemTap script to accept simple command-line arguments using a
$ or @ immediately followed by the number of the argument on the command line. Use $ if you are expecting the user to enter an integer as a command-line argument, and @ if you are expecting a string.
Example 3.10. commandlineargs.stp
probe kernel.function(@1) { }
probe kernel.function(@1).return { }
Example 3.10, “commandlineargs.stp” is similar to Example 3.1, “wildcards.stp”, except that it allows you to pass the kernel function to be probed as a command-line argument (as in
stap commandlineargs.stp kernel function). You can also specify the script to accept multiple command-line arguments, noting them as @1, @2, and so on, in the order they are entered by the user.
