Match the following commands to the corresponding descriptions.
_____ 1. lp xyz
_____ 2. cat xyz
_____ 3. rm i xyz
_____ 4. /david/xyz
_____ 5. cancel lp1
_____ 6. ls l
_____ 7. cd ..
_____ 8. ls a
_____ 9. rmdir xyz
_____ 10. pwd
_____ 11. lpstat -d
_____ 12. rm - -help
_____ 13. lpr -p filename
_____ 14. rm -r *
_____ 15. lpstat
_____ 16. ls -m
_____ 17. cd
_____ 18. mkdir - -parent xx/yy
_____ 19. lpr -T
_____ 20. lp -m filename
a:
absolute pathname to the file called xyz
b: changes the directory to the parent of the current directory
c: lists current directory files including the invisible files
d: sends xyz file to the line printer
e: deletes the directory called xyz
f: displays the content of the file called xyz
g: displays the current directory pathname
h: cancels the printing job on the lp1 printer
i: confirms the deletion of the xyz file before deleting it
j: lists the current directory in long format
k: lists files across the page separated by commas
l: changes the current directory to the HOME directory
m: removes all subdirectories and files under the current directory
n: shows name of the default printer
o: shows status of the printing requests
p: sends mail to the user mailbox after completion of the print request
q: prints on a specific (named) printer (Linux)
r: Displays usage message for the rm command (Linux)
s: creates two levels of directories under the current directory (Linux)
t prints the specified title on the banner page (Linux)
1. d: sends xyz file to the line printer
2. f: displays the content of the file called xyz
3. i: confirms the deletion of the xyz file before deleting it
4. a: absolute pathname to the file called xyz
5. h: cancels the printing job on the lp1 printer
6. j: lists the current directory in long format
7. b: changes the directory to the parent of the current directory
8. c: lists current directory files including the invisible files
9. e: deletes the directory called xyz
10. g: displays the current directory pathname
11. n: shows name of the default printer
12. r: Displays usage message for the rm command (Linux)
13. q: prints on a specific (named) printer (Linux)
14. m: removes all subdirectories and files under the current directory
15. f: displays the content of the file called xyz
16. k: lists files across the page separated by commas
17. l: changes the current directory to the HOME directory
18. s: creates two levels of directories under the current directory (Linux)
19. t: prints the specified title on the banner page (Linux)
20. p: sends mail to the user mailbox after completion of the print request
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Match the following people with their contribution to the field of Computer Science, where a name can be used more than once.
A. John Atanasoff and Cilfford Berry B. Augusta Ada Byron C. Charles Babbage D. Luigi F. Menabrea E. John Mauchly and J. Presper Eckert. F. John von Neumann ________ Inventor of the Analytical Engine ________ Published a paper describing the Analytical Engine in French ________ Inventor of the ABC ________ Wrote detailed instructions for numerical computations, thought to be the first computer program. ________ proposed a computing model used in most digital computers ________ Inventor of the ENIAC ________ envisioned the multidisciplinary potential of the Analytical Engine
When you point to the ____________________ margin, the pointer changes to a white arrow.
Fill in the blank(s) with the appropriate word(s).
________ psychology works to discover the causes of happiness instead of addressing the treatment of mental dysfunctions
Fill in the blank(s) with correct word
To add a word, space, or character in a concatenated field, it should be surrounded by ________
A) square brackets ( [] ) B) plus signs (++) C) parentheses ( () ) D) quotation marks ( "" )