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Which command in UNIX is used for clearing the Screen?
Ans – clear
Frrom the below list which files will be listed using the following
command ls chap(^1-4)
Ans –
Chap5
Chap6
Chap7
Path is used to locate file in Unix filesystem. The types of path supported are _ and _
Ans-
Absolute
Relative
Below statement is an example of _ path in Unix
&cd /home/course/CSE/C++
Ans
Absolute
Predict the output of below command
grep “Atul” employee.txt || echo “not found”
ans – Searched for Atul and echoes “not found” when not found
Unix file system is a collection of files and directories organized in a __
manner
Ans- hierarchical
The kernel is the core part of UNIX operating system. Choose 3 tasks achieved by Kernel from
the list below
Ans
Performs disk operations
Manages I/O operations
Performs memory and processes management
Root is a super user in Unix operating system and it is represented using
ans = /
Name the Unix command to perform safe shut down a Unix
ANs = Shutdown
Predict the output of the following command
$ who | tee userlist.txt
ans – The command displays the output of who in the monitor and also saves the output in
userlist.txt
UNIX is more commonly used operating system in comparison with other OS. Choose
two reason from the below options in support of this statement.
Ans –
It is open source software
It is highly secure
Which command is used to get intermediate result in a pipeline of commands in Unix
Ans-
tee
Which of the following options in UNIX can be used for printing the calendar for
December 2019?
Ans-
$ cal 12 2019
$ cal dec 2019
$ cal December 2019
Kernel of UNIX operating system is written using __
ans – vc++
Which option can be used to perform a forward search of string in the vi
editor
Ans-
/string
Unix executables are stored in which path?
Ans = /bin
Which command can be used for navigating 5 pages forward in vi
editor
Ans
5 ctrl + f
Which key can be used to change the mode from input mode to command
mode?
Ans
Esc
Match the following data command with the correct output
Consider today’s date is 22nd April 20201. date +%b 2. data +%D 3. date +%F 4. date +%H
With
a. Apr b. 04/22/20 c. 20-04-22 d.05
Ans
1-A, 2-B, 3-C, 4-D
Match the metacharacters with the respective types
?”[][!] 2. > >> < << 3. ,() & && || 4. $1 to $9
a. Positional parameters b. Filename substitution c. I/O Redirection d. Process Execution
Ans = 1-D, 2-C, 3-B, 4-A
the standard output of one program can be redirected as standard input to another
program using _
Ans= |
__ is an unparsed character data that can’t be parsed be the
parser.
Ans- CDATA
A system administrator needs to identify different types of files in the UNIX system. Help
by matching the correct symbols used to identify the file type
- – 2. l 3.b 4.c
With
a. Regular file b. Link file c. Block device file d. Character device file
ans – 1-A, 2-B, 3-C, 4-D