Which of the following commands in UNIX is used to take any character from standard input and then echoes them to standard output?

Keep practicing — related questions

• Which of the following stream classes is used in C++ to perform input and output operations on to a data file?
• Which of the following UNIX commands counts the number of lines, words, and characters in a file?
• Which of the following systems involves no uncertainty in defining the outputs of the system knowing the in...
• Which of the following file modes is used in file handling, if an already existing file is to be opened for...
• _________ is the header file used in C++ to handle input and output functions.
• Which of the following classes in C++ supports output operations and contains open() function with default ...
• Which of the following components of an automated online assistant translates the human-generated input int...
• Which of the following is generally used for recreation and entertainment in the context of an Internet game?