Using Unix:

1. Write a script that tests for at least 1 in the line calling the script. If there are 0 arguments (use positional parameters), then notify user of the problem and exit status 1. If program running" and exit with a status of 0. or more arguments user puts in an argument, echo Deliverables: Copy and paste the script into a c text or doc file. 2. Write a shell script that copies the file named by its first argument (it must already exist) to a file with the same name with the filename extension of .bak Thus, if you call the script with the argument first (and a file named first exists in the working directory), after the script runs you would have two files: first and first.bak. Next, add a test routine to verify the user has used rectory. If an argument that is a valid file and not a di it is not then quit the script with an 'exit 1' status. "Deliverables: Copy and paste the script into a common text or doc file. 3. Write a script that uses a for i' type control structure to check all of the files in the directory /var/log/ Test if the file is a directory and has an executable permission, if true, echo the name of the file. Six directories should be returned. "Deliverables: Copy and paste the script into a common text or doc file. Also show your output from running the