The <, > and %> are valid stream redirection operators within Bash. The < operator redirects the standard input of a command from a file or another command. For example, sort < names.txt will sort the lines of the file names.txt and print them to the standard output. The > operator redirects the standard output of a command to a file or another command, overwriting the file if it exists. For example, echo "Hello World" > greeting.txt will write the string “Hello World” to the file greeting.txt. The %> operator redirects the standard error of a command to a file or another command, overwriting the file if it exists. For example, ls foo %> errors.log will list the contents of the directory foo and write any error messages to the file errors.log. The other options are either invalid or do not perform the desired task. The <<< operator is not a valid Bash operator, but it is used in some other shells like Zsh to redirect a string literal as the standard input of a command. The >>> operator is not a valid Bash operator, but it is used in some programming languages like Python to denote a bitwise right shift operation. References:

LPIC-1 Exam 101 Objectives, Topic 103: GNU and Unix Commands, 103.4 Use streams, pipes and redirects

LPIC-1 Linux Administrator 101-500 Exam FAQ, LPIC-1 Exam 101 Objectives, GNU and Unix Commands (Total Weight: 25)