Which of the following files will displayed by this command cat *ch*
A. patch
B. catch
C. .ch
D. All of the above
E. None of the above

1 Answer

Answer :

D. All of the above

Related questions

Description : Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters? A. cat emp[!0-9] B. more [emp][!0-9] C. cat emp[x-z]

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

Description : Why did the rmdir command fail's that a directory bar exists. The command rmdir bar fails with the message that the directory is not empty. On running ls bar no files are displayed?

Last Answer : This could mean that the directory named bar has hidden contents. Use ls -a bar to show all contents of bar.

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

Last Answer : A. chmod u+x emp[l-3]

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

Description : Which command is used to copy all files having the string chap and any two characters after that to the progs directory? A. cp chap?? progs B. cp chap* progs C. cp chap[12] /progs/*.*

Last Answer : A. cp chap?? progs

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.

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

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

Description : ……………. Allows definitions and query language statements to be entered; query results are formatted and displayed. A) Schema Processor B) Query Processor C) Terminal Interface D) None of the above

Last Answer : C) Terminal Interface

Description : The……………………command can determine which interface is used on a system from the messages displayed on the console during a boot. A. dmesg B. traceroute C. ifconfig D. finger

Last Answer : A. dmesg

Description : Which of the following has compilation error in C ? (A) int n = 32; (B) char ch = 65; (C) float f= (float) 3.2; (D) none of the above

Last Answer : D

Description : 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

Last Answer : B. od

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

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

Last Answer : B. rm

Description : 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

Last Answer : A. tee

Description : Which of the following is not a communication command. A. write B. mesg C. mail D. grep E. None of the above

Last Answer : D. grep

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

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

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

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

Last Answer : B. rmdir

Description : 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

Last Answer : D. sort -r

Description : Which symbol will be used with grep command to match the pattern pat at the beginning of a line? A. ^pat B. $pat C. pat$ D. pat^ E. None of the above

Last Answer : A. ^pat

Description : Can I delete all of the patch files I've downloaded for World of Warcraft?

Last Answer : answer:Yes, it’s fine to remove these, if you are speaking about the .exe (Or whatever the equivalent of an exe is on the Mac). Once the patch has been installed, all the modifications are put into the World of Warcraft directory, so just stay away from there and you’ll be fine

Description : ____________ is a collection of one or more files that correct flaws in the performance, reliability or security of a specific software product. A. Software Update B. Software Piracy C. Software patch D. None of the above

Last Answer : C. Software patch

Description : What is try-catch block?

Last Answer : A: try-catch block is a way to handle exceptions in Java. try contains a block of statements to check for any error. If any error occurs within the try block, it is trapped. Further a report is passed to the exception handler about the error, which is done by the catch block.

Description : Which one of the following is not a software myth? (A) Once we write the program and get it to work, our job is done. (B) Project requirements continually change, but ... not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Last Answer : (D) If an organization does not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Description : Which symbol is used to separate more than one command in the same command line? A. $ B. # C. : D. ;

Last Answer : D. ;

Description : The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Last Answer : B) Converts a java program into bytecode

Description : The command javac is used to A) debug a java program B) compile a java program C) interpret a java program D) execute a java program

Last Answer : B) compile a java program

Description : The type(s) of auto executing macros, in Microsoft word is/are A) Auto execute B) Auto macro C) Command macro D) All of the above

Last Answer : D) All of the above

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

Description : To delete a database ................... command is used A) delete database database_name B) Delete database_name C) drop database database_name D) drop database_name

Last Answer : C) drop database database_name

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)

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”].

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”)

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)

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)

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

Description : Which of the following commands would return process_id of sleep command? (A) Sleep 1 and echo $? (B) Sleep 1 and echo $# (C) Sleep 1 and echo $x (D) Sleep 1 and echo $!

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

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

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”

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]

Description : 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

Last Answer : (D) All of the above

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.

Description : Unix command to change the case of first three lines of file “shortlist” from lower to upper (1) $ tr ‘[a-z]’ ‘[A-Z]’ shortlist | head-3 (2) $ head-3 shortlist | tr ‘[a-z]’ ‘[A-Z]’ (3) $ tr head-3 shortlist ‘[A-Z]’ ‘[a-z]’ (4) $ tr shortlist head-3 ‘[a-z]’ ‘[A-Z]’

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

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

Description : What are the operations that can be performed on Files?

Last Answer : Ans: Following operations can be performed on files1. Creation of a file of a specific type. 2. Reading/processing a file. 3. Append/add information to a file. 4. Modify/edit data in a file. 5. Delete items in a file. 6. Update the file.

Description : What are the ways of storing data in Files?

Last Answer : Ans: There are two ways of storing data in files 1. Text Format- In text format data is stored as a line of character with each line terminated by a new line character ( \n'). Text files ... different on different machine. In text format , these problem do not arise,and hence it is more portable.