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- Please create provide the command to create a new user with the following parameters: Name = your first or middle name Group = users Shell = /bin/zsh Fill in all the other fields as neededWrite a command to search an user with name Hussain, who has already been created.Execute a command that undoes the previous deletion.
- If you do not know where the update.txt file is located on your computer, print a copy.Please provide the command(s) to accomplish each of the following actions AND specify what changes in the output above. Change the group to “Seneca”. Remove Execute permissions for all. Adjust the permissions to only be “Read Only” for all. Modify the modification date/time to reflect the current date/time. Create hard link to the file. Generate soft link to the file. Empty the file of all existing content without deleting the file. Using “Octal” set the permissions to be “rwxr-x-wx”.If you're not sure where the update.txt file is on your machine, you can print a copy.
- Create a trigger named InstructorInsertSalaryTR that fires when a new row is added to the Instructors table. Throw an error when multiple rows are inserted. When there is only one row inserted, validate that the AnnualSalary value is positive (strictly greater than zero) and less than or equal to 120000. Throw an error with appropriate message if the salary value is negative or too big. Also, if the salary value is between 0 and 10000, assume that there was a mistake of entering monthly salary instead of annual salary, and multiply the salary value by 12. For example, if the new value of the salary is 5000, it should be changed to 60000. No need to validate any other data from the inserted row. Test the trigger with appropriate INSERT statements. There should be four cases: 1) with negative salary, 2) with positive salary <= 10000, 3) with salary greater that 10000 and less than or equal to 120000, and 4) with salary > 120000.Write a script that adds an index to the MyGuitarShop database for the zip code field in the Addresses table. Write a script that implements the following design in a database named MyWebDB: In the Downloads table, the UserID and ProductID columns are the foreign keys. In the Users table, the EmailAddress and LastName columns are required, but the FirstName column is not. Include a statement to drop the database if it already exists. Include statements to create and select the database. Include any indexes that you think are necessary. 3. Write a script that adds rows to the database that you created in exercise 2. Add two rows to the Users and Products tables. Add three rows to the Downloads table: one row for user 1 and product 1; one for user 2 and product 1; and one for user 2 and product 2. Use the GETDATE function to insert the current date and time into the DownloadDate column. Write a SELECT statement that joins the three tables and retrieves the data from these tables like…Note: ahmad is not member of ali group. another user called "ahmad" can execute "cd Ireports" command successfully. Select one: True False