IT 244: Introduction to Linux/Unix
Homework 7

Due Sunday, March 25th at 11:59 PM

Deliverables

1. A shell script named hw7.sh that performs the operations listed below.
   This file should be in an hw7 directory inside your hw directory inside your it244 directory.
   100 points

Requirements

• Create an hw7 directory in your hw directory inside your it244 directory
• Go to the hw7 directory and run Unix commands that will execute the steps below
• When you have a command line that does what the step asks you to do, paste it into hw7.sh using nano or any other text editor
• When you have completed all the steps, create an echo statement before the commands for each step, that will print the step number to the terminal

Testing

• The script hw7.sh must have the format specified in this document
• Scripts that do not follow the rules specified in the document mentioned above will will have points deducted from their score
• Be sure you make the script executable by running the following command

  chmod  755  hw7.sh

• Be sure to test your script and correct any errors you find
• You will lose 5 points for each error that occurs when running your script
• To run your script and see only the error messages run the following command

  ./hw7.sh  >  /dev/null

Steps for Script

1. Copy bother10.sh from /home/tsoro/course_files/it244_files to your hw7 directory.
   Run this program in the background redirecting output to /dev/null.
   Be sure you copy and run bother10.sh, NOT bother.sh.
2. Run a command that shows the job number of the process running bother10.sh.
3. Run a command that shows the process ID of the process running bother10.sh.
4. Copy the script make_foo.sh from ~tsoro/course_files/it244_files to your current directory.
   Run this script.
   Perform a long listing of all files whose name starts with the string "foo" using meta-characters.
5. Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single character, followed by .txt .
6. Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single digit, either 1, 3 or 5, followed by .txt .
7. Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single digit from 1 through 5 followed by .txt . Do this using the range feature of one of the meta-characters.
8. Using meta-characters, perform a long listing of all files whose name starts with the string "foo" followed by a single digit, not 1, nor 3 nor 5, followed by .txt .
9. Using meta-characters, perform a long listing of all files whose name starts with the string "foo" followed by two digits followed by .txt .
10. Using meta-characters, perform a long listing of the files foo21.txt, foo25.txt and foo29.txt. This must be done using a single command.