1) Why does the noclobber variable NOT protect you from overwriting and existing file with 'mv' or 'cp'? Insert your answer starting at the next line.

2. write a command that will display the value of the PATH variable. On the line following the command, insert the output of the command.

3. write a command that will add the directory ~/.bin to the END of your PATH. On the line following the command, insert the output of the command.

4. write a command that will display the name of every file on the Linux system whose file content contains the string "Alex John The command must run in background, and must redirect standard error to /dev/null. On the line following the command, insert the output of the command.

5. write a command that will display the process id number and total CPU time for each process on the system. On the line following the command, insert the output of the command.