Detailed explanation of Linux command file overwrite and file append

1. The difference between the command > and >>

Command>: If the file exists, overwrite the original file's contents; if the original file does not exist, create the file and then add the information.
Command >>: will not overwrite the original file content, but append the content to the end of the file.

2. Basic grammar (just understand the difference between > and >>)

3. Example:

ls -l > filename:

ls -l >>filename:

Other commands are similar. I won’t go into details, you can verify it yourself.

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