Which command is used to remove a file? A. remove B. rm C. mv D. del E. None of the above

Which command is used to remove a file?
A. remove
B. rm
C. mv
D. del
E. None of the above
by

1 Answer

Answer :

B. rm
by

Related questions

The Unix command: $ vi file1 file2 (A) Edits file1 and stores the contents of file1 in file2 (B) Both files i.e. file1 and file2 can be edited using ‘ex’ command to travel between files (C) Both files can be edited using the ‘mv’ command to move between the files (D) Edits file1 first, saves it and the edits file2

Description : The Unix command: $ vi file1 file2 (A) Edits file1 and stores the contents of file1 in file2 (B) Both files i.e. file1 and file2 can be edited using ex' command to travel between files (C) Both ... using the mv' command to move between the files (D) Edits file1 first, saves it and the edits file2

Last Answer : (B) Both files i.e. file1 and file2 can be edited using ‘ex’ command to travel between files

The mv command changes (A) the inode (B) the inode-number (C) the directory entry (D) both the directory entry and the inode

Description : The mv command changes (A) the inode (B) the inode-number (C) the directory entry (D) both the directory entry and the inode

Last Answer : (C) the directory entry

Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use a) d.delete(“john”:40) b) d.delete(“john”) c) del d[“john”]. d) del d(“john”:40)

Description : Suppose d = {“john”:40, “peter”:45}, to delete the entry for “john” what command do we use a) d.delete(“john”:40) b) d.delete(“john”) c) del d[“john”]. d) del d(“john”:40)

Last Answer : c) del d[“john”].

Which command is used to remove the read permission of the file 'note' from both the group and others? A. chmod go+r note B. chmod go+rw note C. chmod go-x note D. chmod go-r, 4-x note E. None of the above

Description : Which command is used to remove the read permission of the file 'note' from both the group and others? A. chmod go+r note B. chmod go+rw note C. chmod go-x note D. chmod go-r, 4-x note E. None of the above

Last Answer : D. chmod go-r, 4-x note

What will be the output of the following Unix command ? $rm chap0\[1 - 3\] (A) Remove file chap0[1 - 3] (B) Remove file chap01, chap02, chap03 (C) Remove file chap\[1 - 3\] (D) None of the above

Description : What will be the output of the following Unix command ? $rm chap0\[1 - 3\] (A) Remove file chap0[1 - 3] (B) Remove file chap01, chap02, chap03 (C) Remove file chap\[1 - 3\] (D) None of the above

Last Answer : (A) Remove file chap0[1 - 3]

Let L be the language generated by regular expression 0*10* and accepted by the deterministic finite automata M. Consider the relation RM defined by M. As all states are reachable from the start state, RM has ................ equivalence classes. (A) 2 (B) 4 (C) 5 (D) 6

Description : Let L be the language generated by regular expression 0*10* and accepted by the deterministic finite automata M. Consider the relation RM defined by M. As all states are reachable from the start state, RM has ................ equivalence classes. (A) 2 (B) 4 (C) 5 (D) 6

Last Answer : (D) 6

If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use A. tty ^c B. stty intr \^c C. stty echoe D. stty echo \^a E. None of the above

Description : If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use A. tty ^c B. stty intr \^c C. stty echoe D. stty echo \^a E. None of the above

Last Answer : B. stty intr \^c

Which command is used to remove a directory? A. rd B. rmdir C. dldir D. rdir E. None of the above

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Last Answer : B. rmdir

Which command is used to display a file contents in octal form? A. cd B. od C. of D. oct E. None of the above

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Last Answer : B. od

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Description : Which command is used to count just the number of characters in a file? A. wc - 1 B. wc -c C. wc -w D. wc -r E. None of the above

Last Answer : B. wc -c

The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is A. tee B. tr C. sort D. grep E. None of the above

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Last Answer : A. tee

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: A. 000 B. 755 C. 744 D. 555 E. None of the above

Description : 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: A. 000 B. 755 C. 744 D. 555 E. None of the above

Last Answer : B. 755

Which command sends the word count of the file infile to the newfile. A. wc infile >newfile B. wc <infile >newfile C. wc infile - newfile D. wc infile | newfile E. None of the above

Description : Which command sends the word count of the file infile to the newfile. A. wc infile >newfile B. wc newfile C. wc infile - newfile D. wc infile | newfile E. None of the above

Last Answer : A. wc infile >newfile

Which command is used to extract specific columns from the file? A. cat B. cut C. grep D. paste E. None of the above

Description : Which command is used to extract specific columns from the file? A. cat B. cut C. grep D. paste E. None of the above

Last Answer : B. cut

Which command is used to display the top of the file? A. cat B. head C. more D. grep E. None of the above

Description : Which command is used to display the top of the file? A. cat B. head C. more D. grep E. None of the above

Last Answer : B. head

Which command is used to sort the lines of data in a file in reverse order A. sort B. sh C. st D. sort -r E. None of the above

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Last Answer : D. sort -r

Is the following piece of code valid? >>> a=(1,2,3,4) >>> del a a) No because tuple is immutable b) Yes, first element in the tuple is deleted c) Yes, the entire tuple is deleted

Description : Is the following piece of code valid? >>> a=(1,2,3,4) >>> del a a) No because tuple is immutable b) Yes, first element in the tuple is deleted c) Yes, the entire tuple is deleted

Last Answer : c) Yes, the entire tuple is deleted

What is the output of the following code? >>> a=(1,2,3,4) >>> del(a[2]) a) Now, a=(1,2,4) b) Now, a=(1,3,4) c) Now a=(3,4) d) Error as tuple is immutable

Description : What is the output of the following code? >>> a=(1,2,3,4) >>> del(a[2]) a) Now, a=(1,2,4) b) Now, a=(1,3,4) c) Now a=(3,4) d) Error as tuple is immutable

Last Answer : d) Error as tuple is immutable

To remove string “hello” from list1, we use which command ? a) list1.remove(“hello”) b) list1.remove(hello) c) list1.removeAll(“hello”) d) list1.removeOne(“hello”)

Description : To remove string “hello” from list1, we use which command ? a) list1.remove(“hello”) b) list1.remove(hello) c) list1.removeAll(“hello”) d) list1.removeOne(“hello”)

Last Answer : d) list1.removeOne(“hello”)

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Description : What does the following command do? grep −vn abc x (A) It will print all of the lines in the file x that match the search string abc (B) It will print all of the lines in file x that do not ... (D) It will print the specific line numbers of the file x in which there is a match for string abc

Last Answer : (A) It will print all of the lines in the file x that match the search string “abc”

In Unix, the command to enable execution permission for file “mylife” by all is ................ (A) Chmod ugo+X myfile (B) Chmod a+X myfile (C) Chmod +X myfile (D) All of the above

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Last Answer : (D) All of the above

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Description : What is the function of following UNIX command? WC - lb& (A) It runs the word count program to count the number of lines in its input, a, writing the result to b, as a foreground process. (B) It runs ... (D) It copies the l ' numbers of lines of program from file, a, and stores in file b.

Last Answer : (B) It runs the word count program to count the number of lines in its input, a, writing the result to b, but does it in the background.

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Last Answer : (2) $ head-3 shortlist | tr ‘[a-z]’ ‘[A-Z]’ 

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Last Answer : D. grep

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Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3? A. chmod u+x emp[l-3] B. chmod 777 emp* C. chmod u+r ??? emp D. chmod 222 emp? E. None of the above

Description : Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3? A. chmod u+x emp[l-3] B. chmod 777 emp* C. chmod u+r ??? emp D. chmod 222 emp? E. None of the above

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Last Answer : A. ^pat

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Last Answer : D. ;

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Last Answer : A. cat emp[!0-9]

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Last Answer : A. cp chap?? progs

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Last Answer : B) Converts a java program into bytecode

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Last Answer : B) compile a java program

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Last Answer : D) All of the above

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Description : For using a specific database …………… command is used. A) use database B) databasename use C) Both A &B D) None of them

Last Answer : A) use database

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Last Answer : C) drop database database_name

Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use? a) d.size() b) len(d) c) size(d) d) d.len()

Description : Suppose d = {“john”:40, “peter”:45}. To obtain the number of entries in dictionary which command do we use? a) d.size() b) len(d) c) size(d) d) d.len()

Last Answer : b) len(d)

To insert 5 to the third position in list1, we use which command ? a) list1.insert(3, 5) b) list1.insert(2, 5) c) list1.add(3, 5) d) list1.append(3, 5)

Description : To insert 5 to the third position in list1, we use which command ? a) list1.insert(3, 5) b) list1.insert(2, 5) c) list1.add(3, 5) d) list1.append(3, 5)

Last Answer : a) list1.insert(3, 5)

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Description : To add a new element to a list we use which command ? a) list1.add(5) b) list1.append(5) c) list1.addLast(5) d) list1.addEnd(5)

Last Answer : a) list1.add(5)

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Last Answer : (D) Sleep 1 and echo $!

The output generated by the LINUX command : $ seq 1 2 10 will be (A) 1 2 10 (B) 1 2 3 4 5 6 7 8 9 10 (C) 1 3 5 7 9 (D) 1 5 10

Description : The output generated by the LINUX command : $ seq 1 2 10 will be (A) 1 2 10 (B) 1 2 3 4 5 6 7 8 9 10 (C) 1 3 5 7 9 (D) 1 5 10

Last Answer : (C) 1 3 5 7 9

Which of the following statement is not correct with reference to cron daemon in UNIX O.S? (A) The cron daemon is the standard tool for running commands on a predetermined schedule. (B) It starts when the system boots and runs as long as the system is up. (C) Cron reads configuration files that contain list of command lines and the times at which they invoked. (D) Crontab for individual users are not stored.

Description : Which of the following statement is not correct with reference to cron daemon in UNIX O.S? (A) The cron daemon is the standard tool for running commands on a predetermined schedule. (B) It starts ... command lines and the times at which they invoked. (D) Crontab for individual users are not stored.

Last Answer : (D) Crontab for individual users are not stored.

A segment is any object described by GKS commands and data that start with CREATE SEGMENT and Terminates with CLOSE SEGMENT command. What functions can be performed on these segments? (1) Translation and Rotation (2) Panning and Zooming (3) Scaling and Shearing (4) Translation, Rotation, Panning and Zooming

Description : A segment is any object described by GKS commands and data that start with CREATE SEGMENT and Terminates with CLOSE SEGMENT command. What functions can be performed on these segments? (1) Translation ... 2) Panning and Zooming (3) Scaling and Shearing (4) Translation, Rotation, Panning and Zooming

Last Answer : Translation, Rotation, Panning and Zooming

What is the rm of cable ?

Description : What is the rm of cable ?

Last Answer : In the case of electric cables or their wires, rm means that the conductor of the wire is round. rm = Stranded Round Conductors

In which step of the five steps RM process is the analysis conducted?

Description : In which step of the five steps RM process is the analysis conducted?

Last Answer : In which step of the five steps RM process is the METT-TCanalysis conducted?

What is the intersection of the assesed probability and severity of a hazard called in the rm process?

Description : What is the intersection of the assesed probability and severity of a hazard called in the rm process?

Last Answer : Need answer

What year is my rm 125 VIN JS1RF15A000500961?

Description : What year is my rm 125 VIN JS1RF15A000500961?

Last Answer : Need answer

Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc ) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance). (A) √μ (B) 1/√μ (C) 1/μ (D) 1/μ

Description : Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc ) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance). (A) √μ (B) 1/√μ (C) 1/μ (D) 1/μ

Last Answer : (B) 1/√μ