What is the -r flag for?

The -r flag is commonly used in various command-line tools in Unix/Linux systems, and its meaning can vary depending on the command. Here are a few common usages:

1. rm -r:

   • Used with the rm command to remove directories and their contents recursively. This means it will delete the directory and all files and subdirectories within it.
   • Example: rm -r myfolder deletes myfolder and everything inside it.

2. cp -r:

   • Used with the cp command to copy directories recursively. It copies the directory and all its contents to the specified destination.
   • Example: cp -r source_folder destination_folder copies source_folder and its contents to destination_folder.

3. git clone -r:

   • In Git, it can be used to specify that you want to clone a repository recursively, including all its submodules.
   • Example: git clone --recursive <repository-url>.

4. tar -r:

   • Used with the tar command to append files to an existing archive.

Summary:

The -r flag generally indicates a recursive operation, affecting directories and their contents. Always check the specific command's documentation for precise usage.

If you have a specific command in mind, let me know for more tailored information!