LFCS

What is the purpose of the Bash built-in export command?A . It allows disks to be mounted remotely.B . It runs a command as a process in a subshell.C . It makes the command history available to subshells.D . It sets up environment variables for applications.E . It shares NFS...

Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)A . shutdown -r nowB . shutdown -r "rebooting"C . telinit 6D . telinit 0E . shutdown -k now "rebooting"View AnswerAnswer: AC

In the vi editor, which of the following commands will copy the current line into the vi buffer?A . cB . ccC . 1cD . yyE . 1yView AnswerAnswer: D

What does the symbol within regular expressions represent?A . Match the preceding qualifier one or more times.B . Match the preceding qualifier zero or more times.C . Match the preceding qualifier zero or one times.D . Match a literal character.View AnswerAnswer: C

When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?A . -10B . 0C . 10D . 20View AnswerAnswer: C

What is the output of the following command? echo "Hello World" | tr -d aieouA . Hello WorldB . eooC . Hll WrldD . eoo Hll WrldView AnswerAnswer: C

Which of the following commands will print the last 10 lines of a text file to the standard output?A . cat -n 10 filenameB . dump -n 10 filenameC . head -n 10 filenameD . tail -n 10 filenameView AnswerAnswer: D

Which of the following commands will send output from the program myapp to both standard output (stdout) and the file file1.log?A . cat < myapp | cat > file1.logB . myapp 0>&1 | cat > file1.logC . myapp | cat > file1.logD . myapp | tee file1.logE . tee myapp...

SIMULATION Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)View AnswerAnswer: dpkg-reconfigure

Which of the following commands is used to change options and positional parameters for a running Bash?A . historyB . setC . bashconfD . setshE . envsetupView AnswerAnswer: B