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How to Compile and Run Programs With SSH

Compiling and running programs over SSH involves logging into a remote machine using the SSH protocol, then using the compiler and execution commands just as you would on a local machine. The primary difference is that all operations are executed remotely.

Here’s a step-by-step guide to compile and run programs using SSH:

1. SSH into the Remote Machine

Open your terminal (or command prompt/PowerShell in Windows) and connect to the remote server using SSH:

ssh username@remote_ip_address

Replace username with your user name on the remote server and remote_ip_address with the server’s IP address.

2. Navigate to the Source Code Directory

Once you’ve logged in, navigate to the directory containing your source code using the cd command.

3. Compile the Program

The compilation command varies depending on the programming language:

  • C/C++:
    gcc source_file.c -o output_name # For C
    g++ source_file.cpp -o output_name # For C++
  • Java:
    javac SourceFile.java

Remember to replace source_file.c, source_file.cpp, or SourceFile.java with your actual file name and output_name with your desired output name.

4. Run the Program

  • C/C++:
    ./output_name
  • Java:
    java ClassName

Replace ClassName with the name of the class containing the main method. Note that for Java, you don’t include the .class extension.

5. Exit SSH

Once you’re done compiling and running your programs, you can exit the SSH session using:

exit

Tips:

  1. Use a Code Editor over SSH: Tools like vim, nano, or emacs can be used to edit code directly on the remote server.
  2. Transfer Files: If your code is on your local machine, use scp or rsync to transfer it to the remote server.
  3. Automated Compilation: Consider using build systems or tools (like make) to automate the compilation of complex projects.
  4. SSH Configurations: If you SSH into the remote server frequently, consider setting up an SSH configuration file to simplify the process.

By following these steps and using SSH, you can easily compile and run programs on remote servers, expanding your computational resources and capabilities.

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