• Exercise 2: Write a script that print all even number from n1 to n2, n1 and 2 are provided by user. (while loop)
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Control structures
Control structures are block of statements that analyze the value of variables and determine the flow of execution based on those values. When a program is running, the CPU executes the code line by line. After sometime, the program reaches the point where it has to make a decision on whether it has to go to another part of the code or repeat execution of certain part of the code. These results affect the flow of the program's code and these are called control structures.
Switch Statement
The switch statement is a key feature that is used by the programmers a lot in the world of programming and coding, as well as in information technology in general. The switch statement is a selection control mechanism that allows the variable value to change the order of the individual statements in the software execution via search.
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- • Exercise 1: Please create a script that print “Hello, your name.” • Exercise 2: Please create a directory call user_bin, and add it to PATH. Then mv script of Exercise 1 to user_bin. Then run it from your root directory.• Exercise 3: Add a new command call ‘l’ which will perform exact same as ‘ls -a’. • Exercise 4: Create a function call sortFile, which will sort all filenames of current directory.• Exercise 5: Please make your own page using shell script, print following as your page. <html><head><title>My System Information</title></head><body><h1>My System Information</h1></body></html> Exercise 6: Could you add one variable in the example, name the variable as greeting, which displays “Hello, my name is xxx xxx” in the body using variable greeting.• Exercise 7: Could you add one variable in the example, name the variable as FILE_LIST, which displays the filenames of current working directoryi.Write a command that copies all files in the current working directory that start with b and have a .txt extension to a directory called data that is a subdirectory of your home directory. ii.Write a command to move all of the files in /tmp/downloads whose names contain the string 2020 to the current working directory. iii.Write a command to display a directory listing of all files in the current working directory that consists of two characters, followed by a . (period), followed by another 3 characters.pls check if my unix answers are correct and provide corrections if necessary(commas separate the commands) Move cursor to the last line of the file with one key: G Use one key to move cursor to bottom line of screen: L Move cursor to line 32 with three keys: <32>G Turn on/off line numbers: :set nu , :set nonu Forward/backward one page: ctrl-f , ctrl-b Join the current line with next line: J Replace the whole current line with “abc” with five keys: Append text “abc” at the end of current line: A You just deleted one line by accident. Undo this with one key: u Delete next six lines including current line with three keys: 6dw Delete from cursor to the rest of current line with one key: D Save your changes without quitting vi: :w Delete next five lines from current line and paste them back at the end of the file: 5dd, p Delete next seven characters from cursor with two keys: 7x Swap current char with the next one with just two keys: r<c> Temporarily leave vi as a background…
- Writes the contents of a file one page at a time, using the command write-page. O a. Less O b. More O a. Less O c. Head O d. Tail O c. Head O d. TailIn unix, Write a command that will extract data from column 5 and column 6 from a csv file. Write a command that will sort the data in descending order.Bash Shell Script Programming Assignment Question 1. Create a shell script file called q1.sh Write a script that would accept the two strings from the console and would display a message stating whether the accepted strings are equal to each other. Question 2. Create a shell script file called q2.sh Write a bash script that takes a list of files in the current directory and copies them as into a sub-directory named mycopies. Question 3. Create a shell script file called q3.sh Write a Bash script that takes the side of a cube as a command line argument and displays the volume of the cube. Question 4. Create a shell script file called q4.sh Write a Bash script that prompts you for a user name and displays the corresponding user’s id number (UID), group id number (GID), and his/her home directory. Note: this information can be found in the /etc/passwd file. Question 5. Create a shell script file called q4.sh Write a bash script that will edit the PATH environment variable…
- Exercise 1: Please create a script that print “Hello, your name.” • Exercise 2: Please create a directory call user_bin, and add it to PATH. Then mv script of Exercise 1 to user_bin. Then run it from your root directory.• Exercise 3: Add a new command call ‘l’ which will perform exact same as ‘ls -a’. • Exercise 4: Create a function call sortFile, which will sort all filenames of current directory. Exercise 6: Could you add one variable in the example, name the variable as greeting, which displays “Hello, my name is xxx xxx” in the body using variable greetingWrite the command that can be used to perform the following:a. Compress the symbolic link /root/sfile using the compress utility and display thecompression ratio.b. Compress the contents of the directory /root/dir1 using the gzip utility and displaythe compression ratio.c. Decompress the file /root/letter.bz2.d. Compress the file /root/letter using gzip fast compression.e. Find the compression ratio of the file /root/letter.gz.f. Perform a test compression of the file /root/sample using the bzip2 utility.g. Compress the file /root/sample using the bzip2 utility while minimizing memoryusage during the compression.write the code to lookup, add and remove phoneentries from the phonebook text file . These are the code we use for the lookup, add and remove in the case statement.(Lookup)# Look someone up in the phone bookgrep $1 phonebook (add)echo "$1 $2" >> phonebooksort -o phonebook phonebook (Remove)grep -v "$1" phonebook > /tmp/phonebookmv /tmp/phonebook phonebook Write a complete Bash script which will accept up to three command-line arguments: the first one is either (lookup, add or remove), the second one is a name enclosed in single quotes and the third one (if doing an add) is a phone number enclosed in single quotes. Using a case statement to match on either lookup, add or remove, the script should then perform the requested operation. Again here, you should first check for null arguments before continuing with the rest of the script or requested operation. In addition, the person may not be in the phonebook for lookup or remove so, you need to account for this.
- Write a program that performs the following operations according to the input value with Linux Bash Script. [1] Create a file for a given filename and list the generated file in a long format [2] Delete a file for a given filename [3] Copy a file content to another file [4] Listsubdirectories of a current directory recursively [5] Generate the command that finds how many times the "cat" command has been used in your command history so far. [6] Generate the command that writes the file names starting with W in the active directory to the "Files.txt" file. should be solved using Linux Bash Scripting solution code and one/two screenshots for running of program.1) Write a bash script to demonstrate while loop which displays "While Loop Demo" and exits when key q is typed. 2) Write a bash script using while loop which displays date, your username and current directory every 15 seconds scripts MUST be in bash shell linux commands1- When you use the Undo feature of Microsoft Word, what happens? Your answer: Document is saved Last operation is repeated Last Operation is cancelled Spell checker is used A new line is inserted at the current location 2-The graphical pictures that represents a file in your windows environment is called a(n) Your answer: Gif Menu Start Task Icon 3-Which one is a CPU type? Your answer: Intel Pentium IV inkjet laserjet Acer Aspire Veezy GO 4-If you accidentally delete part of a document, you can repair your mistake with the Your answer: Backspace key Esc key Undo command Redo command All of the above 5-Computers connected to Internet use some protocols in order to set up proper information exchange (by means of WEB, File Transfer, E-Mail etc.) between each other. What is the general name of that protocol suit? Your answer: Windows Apple Talk ICQ IRC TCP/IP 6-The equation in cell A8 is =E10 + E7 + 7 + A7. What will the equation in cell A9 be if the equation…