CODEWITHSUNDEEP
linuxshellunixscripting
Student
Student

Reputation: 28345

What's the difference of redirect an output using ">", "&>", ">&" and "2&>"?

What's the difference of redirect an output using >, &>, >& and 2&>?

Upvotes: 30

Views: 11335

Answers (2)

mipadi
mipadi

Reputation: 410542

  • > redirects stdout to a file
  • 2>& redirects file handle "2" (almost always stderr) to some other file handle (it's generally written as 2>&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.

Upvotes: 57

JohnK813
JohnK813

Reputation: 1124

1> (or >) is for stdout, the output of a command. 2> is for stderr, the error output of the command.

This page is a bit wordy, but has good explanations and examples of the different command combinations.

Upvotes: 1

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