What's the difference of redirect an output using ">", "&>", ">&" and "2&>"?
>redirects stdout to a file2>&redirects file handle "2" (almost always stderr) to some other file handle (it's generally written as2>&1, which redirects stderr to the same place as stdout).&>and>&redirect both stdout and stderr to a file. It's normally written as&>file(or>&file). It's functionally the same as>file 2>&1.2>redirects output to file handle 2 (usually stderr) to a file.