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The correct answer is (C) :!cc %

Best explanation: vi provides US with a feature of compiling a C program WITHOUT leaving the editor by using the :!cc % command.

The correct CHOICE is (b) False

The best explanation: /* will search the entire FILE for an asterisk, while f* looks for it in the CURRENT line only.

The correct choice is (b) tabstop=n

Easiest EXPLANATION: To change the default tab SETTING (8 spaces) to 4 spaces, :SET tabstop=4 can be USED.

Right option is (B) map

Explanation: The map COMMAND LETS us assign the undefined keys or reassign the defined ONES so that when such a key is PRESSED, it expands to a command sequence.

Correct answer is (B) ignorecase

To explain I would say: To CUSTOMIZE the VI to ignore case in PATTERN searches we can use the following statement:

The correct OPTION is (b) autoindent

To explain I would say: To provide automatic indentation to or CODE, we can use the following STATEMENT:

Correct answer is (a) :SET

Best explanation: vi environment is determined by variable SETTINGS. These variables are controlled by :set COMMAND.

The correct option is (d) set, map, abbr

The explanation is: vi can be CUSTOMIZED in the way we want. For this PURPOSE, map, set and abbr COMMANDS are USED.

The correct answer is (a) True

Easiest explanation: We can REPEAT the CHARACTER search USING the ; and , respectively. ; repeats the search in the same direction along which the previous search was MADE with F or t. Similarly (,) repeats the search in the opposite direction.

The CORRECT choice is (a) F, T

Best explanation: F and T perform the RESPECTIVE FUNCTIONS as f and t but in reverse direction.

Right option is (c) F

The BEST I can explain: For moving the cursor forward to the first occurrence of a CHARACTER, f command is used FOLLOWED by the character. For example,

Correct option is (a) True

Best EXPLANATION: t command works in a similar manner as f except the fact that it POSITIONS the cursor a SINGLE character before the occurrence.

Correct choice is (a) f, t

Explanation: For SEARCHING a CHARACTER, we can TAKE the cursor near or to a specific character in the current LINE. This is done with f and t commands.

Correct choice is (d) :w # file01

Explanation: : r file01 will read the contents of file01 below the CURRENT line. :efile01 will stop editing the current FILE and will EDIT file01. Similarly, :e# RETURNS to editing most recently edited file.

Correct ANSWER is (a) : w >> file01

For EXPLANATION I would say: The command :w >> file01 will append the CONTENTS of BUFFER to the file specified.

The CORRECT answer is (b) ctrl-v

To explain: In vi, some CHARACTERS are directly ENTERABLE, but a control CHARACTER has to be PRECEDED by another control character for it to be interpreted properly. Vi used ctrl-v to precede any control character.

The correct choice is (a) True

Easy explanation: The technique of restoring LINE DELETIONS from numbered buffers is APPLICABLE only to entire lines. For example, we can’t restore five words deleted with 5dw unless it was the LAST editing action performed.

The correct OPTION is (a) True

To elaborate: We often need to RESTORE a number of RECENT deletions. Vi editor MAKES it possible to restore up to recent nine COMPLETE line deletions using its numbered buffers. For example,

Correct choice is (c) 26

The best I can explain: vi editor STORES the deleted text in an unnamed BUFFER. But this suffers some limitations. i.e. we can use only one buffer at one TIME. So vi uses 26 special named BUFFERS which are named after the letters of the alphabet. For example,

The correct answer is (a) :on

Best explanation: To make the current window the only window on the screen and close all other WINDOWS USE :on command. We can also kill the current window USING :Q.

Right choice is (c) :n

The explanation is: We can also create an empty window which will not be ASSOCIATED with any file. For this purpose, :new command is used. Now we can MOVE between these WINDOWS using ctrl-w.

Correct option is (a) :sp

For explanation I would say: We can ALSO split our screen into MULTIPLE windows using :sp command. The WINDOW can be EMPTY or it can contain a FILE, even a copy of the same file.

The correct answer is (c) :rew

For explanation: When VI editor is used with MULTIPLE FILENAMES, it loads the first file. We can switch to NEXT file using :n command. In this manner, we can reach to the last file. At any stage, we can MOVE back to the first file using :rew command.

Correct option is (a) True

To explain: We can also INSERT the output of any command in our FILE USING :R command.

Right option is (c) :rew

To EXPLAIN I would say: When VI editor is used with multiple filenames, it loads the first file. We can switch to next file USING :n COMMAND.

The correct CHOICE is (d) ctrl-^ and :e#

Best explanation: We can switch between multiple FILES without quitting the vi editor. For this PURPOSE, :e command is used. For returning back to the original file, we can use ONE of the following COMMANDS:

Right answer is (a) :e

For EXPLANATION: We can SWITCH between multiple FILES without quitting the vi editor. For example, while working with one FILE, we can switch to another by USING the following command,

The correct choice is (B) False

For explanation: The command c0 will change the text from CURRENT CURSOR to the beginning of LINE.

Correct option is (a) y?str

For explanation I would SAY: The COMMAND y?str is another example of operator-command combination. The operator ? is used with y operator for yanking a string in REVERSE direction.

The correct OPTION is (C) deletes from CURRENT CURSOR up to first occurrence of

To explain: The COMMAND df. is another example of operator-command combination. It deletes from cursor to first occurrence of a dot.

Right answer is (a) cc

For explanation: For changing text, C operator is used. This operator is also combined with a command to perform the REPLACEMENT. To CHANGE entire LINES, use the cc command.

Right ANSWER is (d) !

The best explanation: vi provides a marvellous feature of allowing UNIX filter to ACT on the text that’s displayed on the terminal. For FILTERING text screen,

1. MOVE to the beginning of the text to be acted upon and press !

2. move to the other end of the text using navigation command like G

3. Enter the command to act on the text.

Correct answer is (a) True

Easy explanation: For CHANGING text, c operator is used. This operator is also combined with a COMMAND to PERFORM the replacement. If dw deletes a word, cw changes it. This operator WORKS in input mode. For example, to change the text from the PRESENT cursor location up to the end of line, use

c$ or C

The CORRECT choice is (a) p or P

To explain: After yanking TEXT with YY, we can paste it using either p or P. p paste the text below the current LINE while P paste the text above the current line.

Correct OPTION is (b) y

To EXPLAIN I would say: The y operator is used for YANKING (COPYING) text. It is used in the same way as d operator is used i.e. it is also combined with itself or with another command. For example,

Correct CHOICE is (a) True

Best explanation: An operator alone cannot perform any function unless it is COMBINED with a command or itself. For EXAMPLE, by USING dd or yy we can DELETE or copy a line respectively.

Correct choice is (b) DELETES one word

To explain I WOULD say: dd command is a combination of the d operator with itself. vi can perform COMPLEX deletion when this operator is COMBINED with a command of the command mode. For example,

Right option is (a) $

Best EXPLANATION: DD COMMAND is a COMBINATION of the d operator with itself. vi can PERFORM complex deletion when this operator is combined with a command of the command mode. For example,