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What command would you give to list all lines of userNotes.txt that contain sentence endings with only one blank before the start of the next sentence?
You are working on a documentation file userNotes.txt with some members of your software development team. Just before the file needs to be submitted, you manager tells you that a company standard requires that two blank spaces be left between the end-of-sentence period (.) and the start of the next sentence.
For example, this is OK: Turn the knob. Push the “on” button.
This is not: Turn the knob. Push the “on” button.
Some have inserted only a single blank between sentences.

You need to fix this fast, and the first thing you want to do is to find out how bad the problem is.

What command would you give to list all lines of userNotes.txt that contain sentence endings with only one blank before the start of the next sentence?

What command would you give to print (display on the screen) the corrected text of userNotes.txt with all sentence endings having required two blanks before the start of the next sentence?
Develop a script that you can run on the provided nmap network scan results.
Your script needs to output each open service, and the applicable IP addresses for each service.
Non-Scripted
Output a summarized count of each open service in from the entire scan. Be sure to avoid output that isn’t relevant to the mission.
Include Screen-Capture of your script’s output in your submission.
Compare I/O based on polling with interrupt – driven I/O. In what situation would you
favor one technique over the other?
Write a Linux shell script to perform the following tasks:

a. Display current date and time
b. Display current working directory
c. To check whether a sample file is a directory
d. Display details of all files/directories in current working directory
e. To check whether a sample file is readable, writable, and executable.


Compare the views of memory that kernel code has versus what your Java programs have.
What does it mean when you say a system is starting to thrash?
why do we say it is easier to create a thread than a process?
How does Cluster Size affect the efficiency of the File System?
What affect do you think a heavily fragmented disk has on the performance of Sequential and Random access methods?
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