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1. How can you append the output of a command to a file? Command <file Command >

ID: 3901872 • Letter: 1

Question

1. How can you append the output of a command to a file?

Command <file

Command > file

Command <<file

Command >>file

2. Which command is used to copy all files having the string chap and any two characters after that

cp chap* progs

cp chap?? Progs

cp chap%% progs

cp chap ^^ progs

3. vi always starts in _________mode

insert

command

last line

ex

4. in vi editor, to get out of insert mode, press the ___key, which will put you back into command mode.

Shift

Esc

Ctrl

Alt

5. Which command is used with the vi editor to save file and remain in the editing mode?

:q

:q!

:w

:x

6. How do you rename file “new” in file “old”

mv new old

rm new old

cp new old

rn new old

7. Unix OS is an _______.

Time sharing OS

Multi-tasking OS

Multi_user OS

All the above

8. dev directory contains files for controlling

temporary file

input/output

log files

backup files

9. _____________directory contains executable file for most of the Unix commands

lib

bin

dev

tmp

10. Root directory in Unix is denoted by ____________

/

()

Explanation / Answer

1.

Command >>file

2.

cp chap?? Progs

3.

command mode

4.

Esc

5.

:w

6.

mv new old

7.

All

8.

input/output

9.

lib

10.

/