What do the commands 'gcc test.c -o test' and './test' do?

The commands perform the following actions:

1. gcc test.c -o test:

   • This command compiles the C source file named test.c using the GCC compiler.
   • The -o test option specifies that the output executable should be named test. If this option is not provided, the default output name would be a.out.
   • After running this command, if there are no errors in the source code, an executable file named test will be created.

2. ./test:

   • This command runs the compiled executable named test.
   • The ./ indicates that the executable is located in the current directory.

In summary, the first command compiles the C program, and the second command executes the compiled program.