Q241
Open questionWhich one of the following commands is incorrect?
Select an option to see the answer and solution.
Computer Science · all questionsUNIX
UNIX
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
1,129
Questions
13/57
Page
Pick an option on a question to see the right answer and solution.
Q242
Open questionWhich of the following command doesn't create a process?
Select an option to see the answer and solution.
Q243
Open questionWhich of the following symbol is used for substitution command?
Select an option to see the answer and solution.
Q244
Open questionThe PID of our login shell doesn't change.
Select an option to see the answer and solution.
Q245
Open questionWhich symbol is used for evaluation of variables?
Select an option to see the answer and solution.
Q246
Open questionWhen we use ||, both the commands are executed.
Select an option to see the answer and solution.
Q247
Open questionBoth the owner and group owner can be changed by . . . . . . . . call.
Select an option to see the answer and solution.
Q248
Open questionWhich command is used to display the documentation of commands in UNIX?
Select an option to see the answer and solution.
Q249
Open questionWhich of the following is a backup program?
Select an option to see the answer and solution.
Q250
Open questionWhich of the following is not an option of cp command?
Select an option to see the answer and solution.
Q251
Open questionWhat is a shell script?
Select an option to see the answer and solution.
Q252
Open questionShell is a command interpreter used for interacting with a UNIX system.
Select an option to see the answer and solution.
Q253
Open questionThe target pattern is optional.
Select an option to see the answer and solution.
Q254
Open questionThe complete set of positional parameters is stored in . . . . . . . . as a single string.
Select an option to see the answer and solution.
Q255
Open questionWhich command is used for deleting a single character?
Select an option to see the answer and solution.
Q256
Open questionWhich command creates a space for entering a new line of text below the current cursor location?
Select an option to see the answer and solution.
Q257
Open questionWhich library function is used for printing error messages?
Select an option to see the answer and solution.
Q258
Open questionFS defines the field separator.
Select an option to see the answer and solution.
Q259
Open questionFor checking a file access rights, . . . . . . . . system call is used.
Select an option to see the answer and solution.
Q260
Open question. . . . . . . . option is used for taking instructions from a file.
Select an option to see the answer and solution.