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What does . in a pathname represent? In which type of pathname does it normally specified?

What does . in a pathname represent? In which type of pathname does it normally specified?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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What does . in a pathname represent? In which type of pathname does it normally specified?
Represents current directory and is normally specified relative pathname
Represents root and is normally specified in the absolute pathname
Represents current directory and is normally specified in the absolute pathname
Shell will give an error since . is not a valid directory name
 
 
If mkdir test command fails, what could be the possible reason(s)?
Group of answer choices
test directory or file already exists in the current directory
Shell is broken, that is, it is not functioning properly
Your working directory may be a system directory
Could be (a) or (c)
 
If rmdir test command fails, what could be possible reason(s)?
Group of answer choices
test directory does not exist
test directory is not empty or your working directory is in it
Could be (a) or (b)
test file does not exist
 
What is a hidden file in UNIX?
Group of answer choices
Any file whose filename starts with . (example, .profile)
A system file
UNIX has no hidden file; only Windows has hidden files
Any file whose filename ends with . (example, login.)
 
What will cat foobar foobar do?
Group of answer choices
Shell will display an error since foobar appears twice
cat command will display the content of the file foobar twice on the screen
Shell will display the content of the file foobar twice on the screen
cat command will display the content of the file foobar once on the screen
 
 
 
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