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NOS 120 Final Frequently Most Tested
Questions and Verified Accurate Answers
Your organization routinely uses scripts, but as some employees have left, there are scripts
that contain only command lines and no one is certain of their purpose.What steps can be
taken to ensure a way for others to know the purpose of a script?
✓ Require that script writers place comment lines inside the scripts using the # symbol to
begin each comment line.
Which of the following shells enables the use of scripts? (Choose all that apply.)
✓ Bash
✓ csh
✓ zsh
You frequently use the command ls -a and want to save time by just entering l to do the same
thing.Which of the following commands enables you to set your system to view hidden files by
only entering l ?
✓ alias l=" ls -a"
You have written a script, but when you run it there is an error. Which of the following
commands can you use to debug your script? (Choose all that apply.)
✓ sh -v
✓ sh -x
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You have written a shell program that creates four temporary files.Which of the following
commands can you use to remove these files when the script has completed its work?
✓ trap
Which of the following commands works well for menus used in a script? (Choose all that
apply.)
✓ case
You are currently in the source directory, which is the new directory you have just created for
storing and running your scripts.You want to make certain that the source directory is in your
default path.Which of the following commands enables you to view the current default path
settings?
✓ echo $PATH
You have created a script for use by your entire department in a commonly accessed
directory. Only you are able to run the script, which works perfectly.Which of the following is
likely to be the problem?
✓ You did not give all users in your department execute permission for that script.
Your current working directory contains a series of files that start with the word "account"
combined with a, b, c, d, and e, such as accounta, accountb, and so on. Which of the following
commands enables you to view the contents of all of these files? (Choose all that apply.)
✓ more account[ a,b,c,d,e ]
|
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✓ Customer Support: [+254707240657]
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For which of the following logic structures used within a script is fi the final line for that logic
structure? (Choose all that apply.)
✓ if
Which of the following are examples of arithmetic or relational operators? (Choose all that
apply).
✓ !
✓ <
✓ %
✓ *
You have created a series of scripts that use the same environment variables. However, when
you run these scripts, some of them do not seem to recognize the environment variables you
have set. What is the problem?
✓ You need to use the export command so these variables have global use.
You have spent the last two hours creating a report in a file and afterwards you use cat to
create a new file. Unfortunately the new file name you used was the same as the name you
used for the report, and now your report is gone.What should you do next time to prevent this
from happening?
✓ Enter the command, set -o noclobber before you start.
|
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✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
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You have remotely logged into a computer running UNIX or Linux, but you are not certain
about which operating system you are using. However, when you display the contents of the
variable it shows which operating system you are using.
✓ OSTYPE
What command can you use to view the environment and configuration variables already
configured on your system?
✓ printenv
Which of the following are valid expressions? (Choose all that apply.)
✓ let x=5*9
✓ let x=y+10
✓ let m=12/4
✓ let r=128-80
When you type for wood maple spruce oak pine at the command line and then press Enter,
what should you type next at the > prompt?
✓ do
You want to store a long listing of your files in a variable called myfiles.Which of the
following commands enables you to do this?
✓ myfiles='ls -l'
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
NOS 120 Final Frequently Most Tested
Questions and Verified Accurate Answers
Your organization routinely uses scripts, but as some employees have left, there are scripts
that contain only command lines and no one is certain of their purpose.What steps can be
taken to ensure a way for others to know the purpose of a script?
✓ Require that script writers place comment lines inside the scripts using the # symbol to
begin each comment line.
Which of the following shells enables the use of scripts? (Choose all that apply.)
✓ Bash
✓ csh
✓ zsh
You frequently use the command ls -a and want to save time by just entering l to do the same
thing.Which of the following commands enables you to set your system to view hidden files by
only entering l ?
✓ alias l=" ls -a"
You have written a script, but when you run it there is an error. Which of the following
commands can you use to debug your script? (Choose all that apply.)
✓ sh -v
✓ sh -x
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
You have written a shell program that creates four temporary files.Which of the following
commands can you use to remove these files when the script has completed its work?
✓ trap
Which of the following commands works well for menus used in a script? (Choose all that
apply.)
✓ case
You are currently in the source directory, which is the new directory you have just created for
storing and running your scripts.You want to make certain that the source directory is in your
default path.Which of the following commands enables you to view the current default path
settings?
✓ echo $PATH
You have created a script for use by your entire department in a commonly accessed
directory. Only you are able to run the script, which works perfectly.Which of the following is
likely to be the problem?
✓ You did not give all users in your department execute permission for that script.
Your current working directory contains a series of files that start with the word "account"
combined with a, b, c, d, and e, such as accounta, accountb, and so on. Which of the following
commands enables you to view the contents of all of these files? (Choose all that apply.)
✓ more account[ a,b,c,d,e ]
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
For which of the following logic structures used within a script is fi the final line for that logic
structure? (Choose all that apply.)
✓ if
Which of the following are examples of arithmetic or relational operators? (Choose all that
apply).
✓ !
✓ <
✓ %
✓ *
You have created a series of scripts that use the same environment variables. However, when
you run these scripts, some of them do not seem to recognize the environment variables you
have set. What is the problem?
✓ You need to use the export command so these variables have global use.
You have spent the last two hours creating a report in a file and afterwards you use cat to
create a new file. Unfortunately the new file name you used was the same as the name you
used for the report, and now your report is gone.What should you do next time to prevent this
from happening?
✓ Enter the command, set -o noclobber before you start.
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
, TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!
You have remotely logged into a computer running UNIX or Linux, but you are not certain
about which operating system you are using. However, when you display the contents of the
variable it shows which operating system you are using.
✓ OSTYPE
What command can you use to view the environment and configuration variables already
configured on your system?
✓ printenv
Which of the following are valid expressions? (Choose all that apply.)
✓ let x=5*9
✓ let x=y+10
✓ let m=12/4
✓ let r=128-80
When you type for wood maple spruce oak pine at the command line and then press Enter,
what should you type next at the > prompt?
✓ do
You want to store a long listing of your files in a variable called myfiles.Which of the
following commands enables you to do this?
✓ myfiles='ls -l'
|
✓ Thank You for Choosing Us! ✓ Resources & Updates: [Testtrackers - Stuvia US]
✓ © 2024 TestTrackers ✓ Your Success is Our Mission!
✓ Customer Support: [+254707240657]
