What is the difference between Linux output redirection > and >>?

"Introduction to the difference between:> and >>"

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   > is directed output to a file, if the file does not exist, create a file, if the file exists, it is emptied; generally, when we back up the cleanup log file, it is this method: first back up the log, and then use ' > ' to empty the log file (file size to 0 bytes); >> is to append the output to the destination file. If the file does not exist, the file is created, and if the file exists, the new content is appended to the end of the file, and the original content in the file is not affected.

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"Step one:> and >> can create a new file"

1. 1

   When the file does not exist, using > and >> are the same, new files are created.

   There are no test1 and test2, and new Test1 and Test2 are created by > and >> respectively.

   Echo is the instruction of the output, enclosed in double quotation marks.

   Specific as

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"Step two:> overwrite content,>> append content"

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   Use > to overwrite the contents of the Test1 file, test1 the original content will be emptied, the new content will be added, such as

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   Use > to empty the contents of the Test1 file, as

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   Use >> to append content to test2 file, test2 original content will be retained, new content will be added to the end, such as

What is the difference between Linux output redirection > and >>?