Question

You recently compiled a C++ file using the g++ compiler. It was the last time you used that command, but not the last command you typed. What should you type to have the shell search the history for the last time the g++ command was used, and repeat the command line used?

Answer 1

To repeat the last used g++ compiler command, press Ctrl + R, start typing 'g++', and then press Enter to execute it once found.

Step-by-step explanation:

To search the history for the last time you used the g++ compiler command, you can utilize the command line feature called reverse search. On most Unix-like operating systems, this can be achieved by pressing Ctrl + R and then starting to type the command you're looking for, in this case, 'g++'.

The shell will search the command history and show you the most recent command that matches the input. Once the desired command is found, you can press Enter to execute it again or press the right arrow key to edit the command.

To search the shell history for the last use of the g++ command, you can use the CTRL+R shortcut in Unix-based systems like Linux or macOS.

This will open a reverse search prompt where you can start typing g++ until you find the desired command. Once the command is displayed, you can press enter to execute it.