How does the shell interpret each of the following tokens? (Enter what is required: U =...
How does the shell interpret each of the following tokens? (Enter what is required: U = utility, F = file, V= variable, A= argument) Put these tokens in their proper location on this representative command line:
_______ _______ < ________ || ________ > ________ ; _____ $____ | ________
Homework Answers
Utility Argument < File || Utility > File ; Utility $Variable | Utility
Lets take an example to complete the command:
cat hello < hello.txt || ls > file2; echo $SHELL | wc
Add Answer to:
How does the shell interpret each of the following tokens?
(Enter what is required: U =...
Explain what the following UNIX command does: Is 'echo I.txt' Please type shell commands (for Windows....
Explain what the following UNIX command does: Is 'echo I.txt' Please type shell commands (for Windows. UNIX, or any other system that you like) for: creating a directory called hello world list the contents of this directory create a file called iwashere.txt display the contents of the file iwashere.txt from the command-line Please write a simple program in C for accepting a string from the command-line, reversing and printing the reversed string to standard output.
2. At the command prompt, type ls –l /dev/log and press Enter. What is the file type? Which daemo...
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1. Enter the number of electrons in each energy level (shell) for the following elements. If...
1. Enter the number of electrons in each energy level (shell)
for the following elements. If the energy level does not contain
any electrons, enter a 0 (zero).
2. What is the neutral atom that has its first two energy levels
filled, has 6 electrons in its third energy level, and has no other
electrons? Enter the name of the element, not the abbreviation.
Please explain how to do this for any element.
Part 3. Self Test 3 from the textbook 1) When you enter following command, what happens...
Part 3. Self Test 3 from the textbook 1) When you enter following command, what happens and why? S catdog 2) What results from the following commands? A) S who | grep SUSER B) 5 grep \SHOME filel C) $ echo >> filel D) S echo '* >> filel E) S ps F) S. files G) S set noclobber H) S set -o 1) $ chmod +x file2 3) How can we change the prompt to be Next? in both...
Complete the following sections (use a separate screenshot for each item): The PS1 environmental variable contains...
Complete the following sections (use a separate screenshot for each item): The PS1 environmental variable contains the configuration parameters for how your command-prompt line appears. View the contents of the PS1 variable and configure the PS1 variable as follows: Type echo $PS1 and press Enter. You see the contents of the PS1 variable as ___________________________. Now change your command-prompt to display the full path of the current working directory using an environment variable, PWD. The PWD variable contains the full...
Project 4-4 In this hands-on project, you make and view links to files and directories. Switch to...
Project 4-4 In this hands-on project, you make and view links to files and directories.Switch to a command-line terminal (tty2) by pressing Ctrl+Alt+F2 and log in to the terminal using the user name of root and the password of secret.At the command prompt, type cd samples and press Enter. Next, type ls -F at the command prompt and press Enter. What files do you see? Next, type ls -l at the command prompt and press Enter. What is the link...
Explain what each of the following instructions does. ifstream some_data some_data.open("my_stufr.dat"); ofstream more_data. more_data.open("other_sluff.dat"); Given the...
Explain what each of the following instructions does. ifstream some_data some_data.open("my_stufr.dat"); ofstream more_data. more_data.open("other_sluff.dat"); Given the instructions in the previous problem, write each of the follow pieces of a program. Write a loop that will read doubles from the input file. Each number will be put into a variable named the_number and then added to a variable named the_total. When the end of file is reached, print the number using cout. Write a loop that will read strings from cin...
Write a bash shell script to carry out each of the following tasks: What to Do:...
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Question 4 0/1 point (graded) Which of the following statements does NOT correctly describe the utility...
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When the level of activity increases within the relevant range, how does each of the following...
When the level of activity increases within the relevant range, how does each of the following change? A. Variable Cost per Unit - Increases, Fixed Cost per Unit - Increases B. Variable Cost per Unit - Decreases, Fixed Cost per Unit - Remains the same C. Variable Cost per Unit - Remains the same, Fixed Cost per Unit - Decreases D. Variable Cost per Unit - Remains the same, Fixed Cost per Unit - Increases The new cost analyst in your...
Explain what the following UNIX command does: Is 'echo I.txt' Please type shell commands (for Windows. UNIX, or any other system that you like) for: creating a directory called hello world list the contents of this directory create a file called iwashere.txt display the contents of the file iwashere.txt from the command-line Please write a simple program in C for accepting a string from the command-line, reversing and printing the reversed string to standard output.
1. Enter the number of electrons in each energy level (shell)
for the following elements. If the energy level does not contain
any electrons, enter a 0 (zero).
2. What is the neutral atom that has its first two energy levels
filled, has 6 electrons in its third energy level, and has no other
electrons? Enter the name of the element, not the abbreviation.
Please explain how to do this for any element.
Part 3. Self Test 3 from the textbook 1) When you enter following command, what happens and why? S catdog 2) What results from the following commands? A) S who | grep SUSER B) 5 grep \SHOME filel C) $ echo >> filel D) S echo '* >> filel E) S ps F) S. files G) S set noclobber H) S set -o 1) $ chmod +x file2 3) How can we change the prompt to be Next? in both...
Explain what each of the following instructions does. ifstream some_data some_data.open("my_stufr.dat"); ofstream more_data. more_data.open("other_sluff.dat"); Given the instructions in the previous problem, write each of the follow pieces of a program. Write a loop that will read doubles from the input file. Each number will be put into a variable named the_number and then added to a variable named the_total. When the end of file is reached, print the number using cout. Write a loop that will read strings from cin...
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