Tecnologia da Informação (TI)

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Questões de LFCS

Pratique com as questões oficiais e inéditas do exame LFCS.

101

medium

Linux Administration

Com explicação

What does the symbol within regular expressions represent?

In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows?

Which of the following files, located in the user home directory, is used to store the Bash history?

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process?

Which of the following commands displays the contents of a gzip compressed tar archive?

Which grep command will print only the lines that do not end with a / in the file foo?

Which of the following commands is used to change options and positional parameters for a running Bash?

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

From a Bash shell, which of the following commands directly executes the instruction from the file /usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)

Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct?

Which shell command is used to continue background execution of a suspended command?

Which of the following shell redirections will write standard output and standard error output to a file named filename?

In the vi editor, which of the following commands will copy the current line into the vi buffer?

Which of the following sequences in the vi editor saves the opened document and exits the editor? (Choose TWO correct answers.)

When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?

Which of the following commands will reduce all consecutive spaces down to a single space?

Which character, added to the end of a command, runs that command in the background as a child process of the current shell?

Which of the following commands will print the last 10 lines of a text file to the standard output?

Questões de LFCS

What does the symbol within regular expressions represent?

In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows?

Which of the following files, located in the user home directory, is used to store the Bash history?

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process?

Which of the following commands displays the contents of a gzip compressed tar archive?

Which grep command will print only the lines that do not end with a / in the file foo?

Which of the following commands is used to change options and positional parameters for a running Bash?

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

From a Bash shell, which of the following commands directly executes the instruction from the file /usr/local/bin/runme.sh without starting a subshell? (Please select TWO answers.)

Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)

Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct?

Which shell command is used to continue background execution of a suspended command?

Which of the following shell redirections will write standard output and standard error output to a file named filename?

In the vi editor, which of the following commands will copy the current line into the vi buffer?

Which of the following sequences in the vi editor saves the opened document and exits the editor? (Choose TWO correct answers.)

When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?

Which of the following commands will reduce all consecutive spaces down to a single space?

Which character, added to the end of a command, runs that command in the background as a child process of the current shell?

Which of the following commands will print the last 10 lines of a text file to the standard output?

Which of the following commands prints a list of usernames (first column) and their primary group (fourth column) from the /etc/passwd file?