This project is to acquaint you with fundamental UNIX commands and utilities when creating a multifunctional...

 

 

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This project is to acquaint you with fundamental UNIX commands and utilities when creating a multifunctional application. You will practice on managing shell variables, using shell operators, employing selection and repetition logic structures, creating a menu-based program, listing contents of a file, adding records to a file, searching patterns in a file, deleting records from a file, and using UNIX commands/utilities to manage cursor and output format, etc. The completion of the project will strengthen your knowledge and skills of utilizing UNIX commands/utilities and UNIX shell script programming language. In this project you will build a menu-based application for tracking student information. The specifications of the project are as follows: (10 points) It is a menu-based program with a main screen offering the user options to view records, add new records, search for records, delete records, and quit the program, as shown in Figure 2. Use a case statement to determine what choice the user made, and perform the appropriate action. The only way to exit the application is by pressing "5" to quit the program. All other options should return to the main menu. Your program should handle the case in which the user doesn't enter anything, or the user enters an invalid option. (5 points) The student records are stored in a text file called student_data, as shown in Figure 1. The file contains information about a student's ID, last name, first name, program name, and total credits. Each record is stored on one line and has the above five fields separated by the colon ":" character. The initial data file contains the following records: 1001:Jones :Alice:Accounting:105 1320:Moore: Sarah:Mechanical Engineering: 80 2100:0lson:Timothy:Computer Systems:66 1520:Mitchell:Barbara :Electrical Engineering:34 1800: Smith:Paul:Mathematics:87 2010:Whitman: Henry:Business Management :114 1480:Richard:Johnson:Computer Systems: 90 1234:Willims:David: Economics:78 (20 points) The View Records option should display a sub-menu, as shown in Figure 3, to let user choose how the records are sorted before they are displayed. The records can be sorted by last name or program name in alphabetic order, or sorted by credits in ascending order, or sorted by ID in ascending order by default. The records should be displayed in a neat fixed-length form as shown in Figure 4. The total number of records should also be displayed. The program returns to the main menu after records are displayed and the "Enter" key is pressed. (15 points) The Add New Records option should allow the user to enter the student ID, last name, first name, program name, and total credits. This information will be appended to the end of the file student_data, all on one line, separated by the colon ":" character. The last name cannot be blank for the new record to be written into the data file. If a student ID has already existed in the data file, display an error message and let the user reenter the data (see Figure 5). The program should allow the user to add more records until a 'q' for quit is entered (see Figure 6, 7). The program returns to the main menu after the user enters a 'q'. Modifying the previous field when the user types in -' or exiting if the user types in 'q' is optional. (5 points) The Search for Records option should prompt the user for a string pattern to search for in the data file and display all the records that contain that pattern (see Figure 8). (10 points) The Delete Records option should prompt the user for a pattern, display all the records that contain that pattern, ask the user to confirm yes or no to delete these records (see Figure 9, 10), and perform the appropriate actions. (8 points) The source code of the above four options (view, add, search, and delete) should be placed in four separate script files. (2 points) The Quit option will exit the application. (10 points) Make a shell script called functions that defines the following three functions: sort_ID to sort the records in the ascending order of student ID, sort_lname to sort the records in the alphabetic order of student last name, sort_program to sort the records in the alphabetic order of program name, sort_credits to sort the records in the ascending order of total credits. Use function(s) in the View Records module to sort the records according to user's choice. (5 points) The program should have necessary comments including, but not limited to, the script name, author's name, date information, and the purpose of the script. (10 points) Make a documentation file that have enough snapshots to show the states of your program execution, for example, the main menu, and each menu option, action/results, etc. It is highly suggested that you include snapshots similar to the ones in this document. Your snapshots should be legible and include the heading of the putty terminal window showing your username and host information. This project is to acquaint you with fundamental UNIX commands and utilities when creating a multifunctional application. You will practice on managing shell variables, using shell operators, employing selection and repetition logic structures, creating a menu-based program, listing contents of a file, adding records to a file, searching patterns in a file, deleting records from a file, and using UNIX commands/utilities to manage cursor and output format, etc. The completion of the project will strengthen your knowledge and skills of utilizing UNIX commands/utilities and UNIX shell script programming language. In this project you will build a menu-based application for tracking student information. The specifications of the project are as follows: (10 points) It is a menu-based program with a main screen offering the user options to view records, add new records, search for records, delete records, and quit the program, as shown in Figure 2. Use a case statement to determine what choice the user made, and perform the appropriate action. The only way to exit the application is by pressing "5" to quit the program. All other options should return to the main menu. Your program should handle the case in which the user doesn't enter anything, or the user enters an invalid option. (5 points) The student records are stored in a text file called student_data, as shown in Figure 1. The file contains information about a student's ID, last name, first name, program name, and total credits. Each record is stored on one line and has the above five fields separated by the colon ":" character. The initial data file contains the following records: 1001:Jones :Alice:Accounting:105 1320:Moore: Sarah:Mechanical Engineering: 80 2100:0lson:Timothy:Computer Systems:66 1520:Mitchell:Barbara :Electrical Engineering:34 1800: Smith:Paul:Mathematics:87 2010:Whitman: Henry:Business Management :114 1480:Richard:Johnson:Computer Systems: 90 1234:Willims:David: Economics:78 (20 points) The View Records option should display a sub-menu, as shown in Figure 3, to let user choose how the records are sorted before they are displayed. The records can be sorted by last name or program name in alphabetic order, or sorted by credits in ascending order, or sorted by ID in ascending order by default. The records should be displayed in a neat fixed-length form as shown in Figure 4. The total number of records should also be displayed. The program returns to the main menu after records are displayed and the "Enter" key is pressed. (15 points) The Add New Records option should allow the user to enter the student ID, last name, first name, program name, and total credits. This information will be appended to the end of the file student_data, all on one line, separated by the colon ":" character. The last name cannot be blank for the new record to be written into the data file. If a student ID has already existed in the data file, display an error message and let the user reenter the data (see Figure 5). The program should allow the user to add more records until a 'q' for quit is entered (see Figure 6, 7). The program returns to the main menu after the user enters a 'q'. Modifying the previous field when the user types in -' or exiting if the user types in 'q' is optional. (5 points) The Search for Records option should prompt the user for a string pattern to search for in the data file and display all the records that contain that pattern (see Figure 8). (10 points) The Delete Records option should prompt the user for a pattern, display all the records that contain that pattern, ask the user to confirm yes or no to delete these records (see Figure 9, 10), and perform the appropriate actions. (8 points) The source code of the above four options (view, add, search, and delete) should be placed in four separate script files. (2 points) The Quit option will exit the application. (10 points) Make a shell script called functions that defines the following three functions: sort_ID to sort the records in the ascending order of student ID, sort_lname to sort the records in the alphabetic order of student last name, sort_program to sort the records in the alphabetic order of program name, sort_credits to sort the records in the ascending order of total credits. Use function(s) in the View Records module to sort the records according to user's choice. (5 points) The program should have necessary comments including, but not limited to, the script name, author's name, date information, and the purpose of the script. (10 points) Make a documentation file that have enough snapshots to show the states of your program execution, for example, the main menu, and each menu option, action/results, etc. It is highly suggested that you include snapshots similar to the ones in this document. Your snapshots should be legible and include the heading of the putty terminal window showing your username and host information.

Answer rating: 100% (QA)

sample output Menu 1 View Recor... View the full answer