Which of the following commands is used to obtain a list of all files by modification time?
1. ls -1
2. ls -t
3. ls -i
4. ls -R
Posted Date:-2021-02-20 13:58:00
Which of the following is not a communication command.
1.write
2.mesg
3.mail
4.grep
Posted Date:-2021-02-20 13:58:00
While working with mail command, which command is used to save mail in a separate file?
1.s
2.r
3.w
4.d
Posted Date:-2021-02-20 13:58:00
If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use
1.tty ^c
2.stty intr ^c
3. stty echoe
4.stty echo ^a
Posted Date:-2021-02-20 13:58:00
The second set of the three permissions (r-) indicates that
1.group has read permission only
2.other has read permission only
3.owner has read permission only
4.group has write permission only
Posted Date:-2021-02-20 13:58:00
Which command is used to remove a file?
1.remove
2.rm
3.mv
4.del
Posted Date:-2021-02-20 13:58:00
Which command is used to remove the read permission of the file 'note' from both the group and others?
1.chmod go+r note
2. chmod go+rw note
3.chmod go-x note
4.chmod go-r note
Posted Date:-2021-02-20 13:58:00
Which command will be used with vi editor to insert text to left of cursor?
1.s
2.S
3.a
4.i
Posted Date:-2021-02-20 13:58:00
Which of the following command addresses all users who are currently hooked on?
1.write
2.mail
3.wall
4.mesg
Posted Date:-2021-02-20 13:58:00
Which of the following files will displayed by this command cat *ch*
1.patch
2.catch
3..ch
4.All of the above
Posted Date:-2021-02-20 13:58:00
Which of the following keys is used to replace a single character with new text?
1.sort
2.s
3.r
4.C
Posted Date:-2021-02-20 13:58:00
In vi editor, forward search is performed using the command.
1.:pat
2.?pat
3./pat
4.All of the above
Posted Date:-2021-02-20 13:58:00
Which symbol will be used with grep command to match the pattern pat at the beginning of a line?
1.^pat
2.$pat
3.pat$
4.pat^
Posted Date:-2021-02-20 13:58:00
The % key allows you
1. to move the cursor to a matching delimiter, when a delimiters a parenthesis, a bracket, or a brace.
2.to move the cursor to the upperleft corner of the screen
3. to move the cursor backward to the beginning of a word
4.to move the cursor to the first column in the current line
Posted Date:-2021-02-20 13:58:00
The agency that sits between the user and the UNIX system is called the
1.logic
2.profile
3.shell
4.erxc
Posted Date:-2021-02-20 13:58:00
The command used to compare the files is known as
1.comp
2.cmp
3.do
4.ccp
Posted Date:-2021-02-20 13:58:00
The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is
1.tee
2.tr
3.sort
4.grep
Posted Date:-2021-02-20 13:58:00
The cp command uses:
1.standard input file
2.standard output file
3.both input and output file
4.neither standard input nor standard output file
Posted Date:-2021-02-20 13:58:00
The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:
1.0
2.755
3.744
4.555
Posted Date:-2021-02-20 13:58:00
TWhich of the following commands is used to display your working directory?
1.dir
2.prompt $p$g
3.pwd
4.path
Posted Date:-2021-02-20 13:58:00
Which column contains all details of the permissions of a file when you issue the ls -l command?
1.second
2.fourth
3.third
4.first
Posted Date:-2021-02-20 13:58:00
Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
1.chmod u+x emp[1-3]
2.chmod 777 emp*
3.chmod u+r ??? emp
4.chmod 222 emp?
Posted Date:-2021-02-20 13:58:00
Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?
1.cat emp[!0-9]
2. more [emp][!0-9]
3.cat emp[x-z]
4.cat emp[a-z]
Posted Date:-2021-02-20 13:58:00
Which command is used to copy all files having the string chap and any two characters after that to the progs directory?
1.cp chap?? progs
2.cp chap* progs
3.cp chap[12] /progs/*.*
4.cp chap?? /progs/*
Posted Date:-2021-02-20 13:58:00
Which command is used to count just the number of characters in a file?
1.wc - 1
2. wc -c
3. wc -w
4. wc -r
Posted Date:-2021-02-20 13:58:00
Which command is used to display a file contents in octal form?
1.cd
2.od
3.of
4.oct
Posted Date:-2021-02-20 13:58:00
Which command is used to display and create files?
1.cat
2.vi
3.ed
4.lyrix
Posted Date:-2021-02-20 13:58:00
Which command is used to display the characteristics of a process?
1.pid
2.du
3.ps
4.au
Posted Date:-2021-02-20 13:58:00
Which command is used to display the top of the file?
1.cat
2.head
3.more
4.grep
Posted Date:-2021-02-20 13:58:00
Which command is used to extract specific columns from the file?
1.cat
2.cut
3.grep
4.paste
Posted Date:-2021-02-20 13:58:00
Which command is used to make all files and sub-directories in the directory (progs) executable by all users?
1.chmod -R a+x progs
2.chmod -R 222 progs
3.chmod -1 a+x progs
4.chmod -x a+x progs
Posted Date:-2021-02-20 13:58:00
Which command is used to remove a directory?
1.rd
2.rmdir
3.dldir
4.rdir
Posted Date:-2021-02-20 13:58:00
Which command is used to sort the
1.sort
2.sh
3.st
4.sort -r
Posted Date:-2021-02-20 13:58:00
Which command is used to terminate a process?
1.shutdown
2.haltsys
3.cancel
4.kill
Posted Date:-2021-02-20 13:58:00
Which command sends the word count of the file infile to the newfile.
1.wc infile >newfile
2.wc <infile >newfile
3. wc infile - newfile
4. wc infile | newfile
Posted Date:-2021-02-20 13:58:00
Which of the following commands is used to display the directory attributes rather than its contents?
1. ls -l -d
2.ls -l
3.ls -x
4. ls -F
Posted Date:-2021-02-20 13:58:00
Which of the following commands is used to identify the type of file by context?
1.Is
2.cat
3.file
4.more
Posted Date:-2021-02-20 13:58:00
Which of the following commands is used to list contents of directories?
1.ls
2.lp
3.dir
4.tar
Posted Date:-2021-02-20 13:58:00
Which of the following commands is used to update access and modification times of a file?
1.grep
2.wc
3.touch
4.cat
Posted Date:-2021-02-20 13:58:00
Which of the following directories contain all the Alias created by a user, including his login
1./tmp
2./etc
3./usr
4./dev
Posted Date:-2021-02-20 13:58:00
Which of the following keys is used to move the cursor to the end of the paragraph.
1.}
2.{
3.|
4.$
Posted Date:-2021-02-20 13:58:00
Which of the following special shell variables is used to process number of the last background job?
1.$!
2.$#
3.$0
4.$*
Posted Date:-2021-02-20 13:58:00
Which option will be used with touch command to change the access time?
1.a
2.b
3.t
4.h
Posted Date:-2021-02-20 13:58:00
Which symbol is used to separate more than one command in the same command line?
1.$
2.#
3.:
4.;
Posted Date:-2021-02-20 13:58:00