Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories? A. rm * B. rm -r * C. rm all D. rm *.* E. None of the above

The correct answer is: B. rm -r *

The rm command is used to delete files. The -r option tells rm to delete directories recursively, meaning that it will delete the directory and all of its contents. The * wildcard matches any file or directory name. So, the command rm -r * will delete all files and directories in the current directory, as well

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