Linux Basics for Big Data

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Redirecting the output of a program

The output of a program can be saved to a file:

    myprogram > myfile

If "myfile" does not exist, it will be created. If it exists it will be overwritten.

Please follow these steps:

  1. Run the following command to save the output of echo to a file:

    echo "hello" > hello.out
    
  2. Append world to it:

    echo "world" >> hello.out
    
  3. Check by typing:

    cat hello.out
    

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