What does the 2>&1 notation signify when used in Linux command redirection?

  • Closes both standard error and standard output
  • Redirects both standard error (2) and standard output (1) to the same location
  • Redirects standard error (2) to standard output (1)
  • Redirects standard output (1) to standard error (2)
The "2>&1" notation signifies that both standard error (file descriptor 2) and standard output (file descriptor 1) are redirected to the same location. This is commonly used to capture both error messages and regular output when running commands.
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