How Do I Execute a Program or Call a System Command?

To execute a program or call a system command in various programming languages, you can use built-in functions or libraries. Here’s how to do it in common languages:

1. In Python: Use subprocess.run() or os.system().
   python

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   import subprocess
subprocess.run(["command", "arg1", "arg2"])

2. In C: Use the system() function.
   c

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   #include <stdlib.h>
system("command");

3. In Java: Use Runtime.getRuntime().exec().
   java

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   Runtime.getRuntime().exec("command");


These methods execute external programs or system commands from within your program, allowing interaction with the operating system.