If rmdir dir001 fails, what could be the reason(s)?
1.dir001 doesn’t exist
2.dir001 is not empty
3.permissions of dir001 doesn’t allow to remove it
4.dir001 doesn’t exist, dir001 is not empty and permissions of dir001 doesn’t allow to remove it
Posted Date:-2022-06-20 07:02:36
In Unix, for what purpose bc command is used?
1.for copying files
2.as a process table viewer
3.as an editor
4.as a calculator
Posted Date:-2022-06-19 12:56:46
In which language UNIX is written?
1.C++
2.C
3.JAVA
4.Python
Posted Date:-2022-06-19 12:03:31
Sometimes we are unable to create a directory because ______________
1.the directory may already exist in the current directory
2.there may be an ordinary file by the same name in the current directory
3.the permissions set for the current directory does not allow the creation
4.the directory may exist, there may be an ordinary file, the permissions set for the current directory does not allow the creation
Posted Date:-2022-06-20 07:00:35
To extract specific columns from a file ____ command is used.
1.cut
2.pr
3.head
4.tail
Posted Date:-2022-06-20 06:44:35
Which command is used for changing the current directory?
1.cd
2.cp
3.pwd
4.rm
Posted Date:-2022-06-20 06:56:23
Which command is used for displaying the beginning of a file in Unix?
1.lp
2.begin
3.pr
4.head
Posted Date:-2022-06-19 12:34:54
Which command is used for preparing a file for printing?
1.pr
2.print
3.cat
4.cd
Posted Date:-2022-06-20 06:27:36
Which command is used for printing the current working directory?
1.HOME
2.cd
3.pwd
4.dir
Posted Date:-2022-06-20 06:55:24
Which command is used for removing/deleting files in Unix?
1.rm
2.mv
3.rmdir
4.del
Posted Date:-2022-06-19 12:40:32
Which command is used to delete all files in a directory?
1.del *
2.rm *
3.mv *
4.rmdir *
Posted Date:-2022-06-19 12:37:39
Which command is used to find out the consumption of a specific directory?
1.mem
2.dv
3.du
4.df
Posted Date:-2022-06-20 06:39:38
Which process is immediately set up by the kernel when we log on to a Unix system?
1.System
2.bash
3.shell
4.parent
Posted Date:-2022-06-20 06:22:15
Which Unix command is used for counting words, lines, and characters in a file?
1.wc
2.man
3.count
4.diff
Posted Date:-2022-06-19 12:44:38
Which Unix command is used for locating files?
1.type
2.loc
3.find
4.search
Posted Date:-2022-06-20 06:26:07
$ cp file_01 . copies the file named file_01 in ____ directory
1.current
2.parent
3.root
4.user
Posted Date:-2022-06-20 07:08:40
echo command is used for _________
1.displaying diagnostic messages
2.displaying date and time
3.displaying errors
4.displaying operating system details
Posted Date:-2022-06-19 12:38:32
For moving two level up in the file hierarchy system using cd command once, we separates ( . . ) by which symbol?
1.?
2.$
3.*
4./
Posted Date:-2022-06-20 07:10:45
For running a Unix command within awk, we’ve to use ____ function.
1.split
2.system
3.substr
4.length
Posted Date:-2022-06-20 06:43:45
How can we escape to the UNIX shell without quitting vi editor?
1.using ‘:sh’ command and using ctrl-Z
2.using ‘:sh’ command
3.using ctrl-Z
4.using ctrl-D
Posted Date:-2022-06-19 12:47:05
The output of the following command is __________ $ cp abd/ .user_06
1.copies .user_06 file in current directory
2.copies .user_06 file in parent directory of directory named abd
3.undefined behaviour
4.erroneous output
Posted Date:-2022-06-20 07:09:46
The Unix shell is both _______ and _______ language.
1.scripting, interpreter
2.high level, low level
3.interactive, responsive
4. interpreter, executing
Posted Date:-2022-06-19 12:02:07
To run the script, we should make it executable first by using _____
1.chmod +w
2.chmod +rwx
3.chmod +x
4.chmod +r
Posted Date:-2022-06-20 06:38:37
What does the following command do?
$ mkdir dir dir/dir_01/dir_021.create dir, dir_01 and dir_02
2.creates dir_02
3.creates dir only
4.throws an error
Posted Date:-2022-06-20 06:59:23
What is a shell script?
1.group of functions
2.a file containing a series of commands
3.a file containing special symbols
4.group of commands
Posted Date:-2022-06-20 06:36:56
What is the default delimiter used by the cut command for cutting fields?
1.space
2.underscore
3.tab
4.double tab
Posted Date:-2022-06-20 06:49:13
What is the function of cp command in Unix?
1.delete a given file
2.change the directory
3.list all the available files in the current directory
4.cp is a command used for copying files and directories
Posted Date:-2022-06-19 12:39:40
What is the output of the following Unix command? $ wc -c *.c
1.size of each .c file
2.total size of .c files
3.erroneous
4.undefined
Posted Date:-2022-06-19 12:55:23
What is Unix?
1.Unix is a programming language
2.Unix is a software program
3. Unix is an operating system
4.Unix is a text editor
Posted Date:-2022-06-19 11:55:16
Which command is used by the user to change their login password in Unix?
1.cp
2.man
3.reset
4.passwd
Posted Date:-2022-06-19 12:29:35
Which command is used for comparing two files?
1.comp
2.cmp
3.comm
4.diff
Posted Date:-2022-06-19 12:43:16
Which command is used for creating directories?
1.rmdir
2.mkdir
3.cd
4.cp
Posted Date:-2022-06-20 06:57:09
Which command is used for creating directories?
1.rmdir
2.mkdir
3.cd
4.cp
Posted Date:-2022-06-20 06:58:05
Which command is used for displaying the contents of a file in Unix?
1.mkdir
2.cat
3.rm
4.cp
Posted Date:-2022-06-19 12:31:24
Which command is used for listing files in a directory?
1.ps
2.list
3.ls
4.wc
Posted Date:-2022-06-20 07:12:30
Which command is used for listing files in a directory?
1.list
2.ls
3.wc
4.ps
Posted Date:-2022-06-19 12:28:07
Which command is used for printing the current working directory?
1.dir
2.HOME
3.cd
4.pwd
Posted Date:-2022-06-19 12:27:06
Which command is used for removing an empty directory?
1.mkdir
2.rmdir
3.del
4.remove
Posted Date:-2022-06-20 07:01:29
Which command is used for renaming files in Unix?
1.rename
2.move
3.mv
4.cp
Posted Date:-2022-06-19 12:42:19
Which command is used for saving and quitting the vi editor simultaneously?
1.‘:x’
2.:f
3.:q
4. :w
Posted Date:-2022-06-19 12:45:53
Which command is used for sorting a file on specified fields?
1.pr
2.cut
3.tail
4.sort
Posted Date:-2022-06-20 06:28:22
Which command is used for translating characters?
1.paste
2.tr
3.trans
4.sort
Posted Date:-2022-06-20 06:30:08
Which command is used to compress files?
1.gzip
2.gunzip
3.comm
4.cmp
Posted Date:-2022-06-19 12:34:04
Which command is used to display the documentation of commands in Unix?
1.man
2.whatis
3.help
4.search
Posted Date:-2022-06-19 12:23:42
Which command shows some attributes of a process?
1.HOME
2.ps
3.$$
4.pid
Posted Date:-2022-06-20 06:23:22
Which editor is used by the Unix system to edit files?
1.word
2.notepad++
3.vi
4.notepad
Posted Date:-2022-06-19 12:18:55
Which filter apart from perl, is the most powerful?
1.awk
2.grep
3.cut
4.sed
Posted Date:-2022-06-20 06:40:46
Which filter apart from perl, is the most powerful?
1.awk
2.grep
3.cut
4.sed
Posted Date:-2022-06-20 06:42:28
Which of the following cannot be performed by cat command?
1.appending files
2.deleting files
3.creating files
4.displaying files
Posted Date:-2022-06-20 06:47:33
Which of the following command is used for searching for a pattern in one or more file(s)?
1.paste
2.grep
3.cd
4.cp
Posted Date:-2022-06-20 06:34:49
Which of the following command will be used for searching “director†in emp.lst?
1.grep “director†emp.lst
2.grep -director emp.lst
3.grep -v “director†emp.lst
4.grep “directorâ€
Posted Date:-2022-06-20 06:31:38
Which of the following commands is known as stream editor?
1.grep
2.tr
3.sed
4.td
Posted Date:-2022-06-20 06:35:51
Which of the following files are known as special files in Unix?
1./dev/null
2.sample.txt
3./dev/null and /dev/tty
4./dev/tty
Posted Date:-2022-06-19 12:48:51
Which of the following is not a feature of Unix?
1.multiuser
2.easy to use
3.multitasking
4.portability
Posted Date:-2022-06-19 12:05:59
Which of the following is not a part of all the versions of Unix?
1.System Calls
2.Graphical user interface
3.Kernel and Shell
4.Commands and utilities
Posted Date:-2022-06-19 12:20:23
Which of the following is not an internal command used by mailx?
1.d
2.N
3.a
4.q
Posted Date:-2022-06-20 06:50:41
Which of the following is not true about Unix?
1.UNIX was not written in ‘C’ language
2. Linux is also known as a version of UNIX
3.A user can run multiple programs at the same time; hence UNIX is called a multitasking environment
4. Many people can use a UNIX based computer at the same time; hence UNIX is called as a multiuser system
Posted Date:-2022-06-19 12:12:16
Which of the following is the first UNIX editor?
1.vi
2.emacs
3.ed
4.ed
Posted Date:-2022-06-19 12:04:33
Which of the following keys is used to replace a single character with new text?
1.S
2.s
3.r
4.C
Posted Date:-2022-06-20 07:06:08
Which of the following system call is used for creating a new process in Unix?
1.new
2.wait
3.read
4.fork
Posted Date:-2022-06-20 06:24:37
Which option is used with ls command for long listing of files with seven attributes?
1.-a
2.-l
3.-x
4.-i
Posted Date:-2022-06-20 07:15:59
Which part of the Unix operating system interacts with the hardware?
1.Application program
2.Vi editor
3.Shell
4.Kernel
Posted Date:-2022-06-19 12:21:39
Which symbol is used with the tail command to print the file from the selected line? d)
1. %%
2.^
3.+
4.–
Posted Date:-2022-06-19 12:36:01
Which Unix command is used for changing the current directory?
1.pwd
2.rm
3.cd
4.cp
Posted Date:-2022-06-19 12:24:49
Which Unix command is used for locating repeated and non-repeated lines?
1.cut
2.paste
3.uniq
4.sort
Posted Date:-2022-06-20 06:29:14