CS1101: Laboratory 3b Wrapping-up UNIX Basics Academic Year 2006-2007 Lecturer: Dr. Barry O'Sullivan Department of Computer Science University College Cork b.osullivan@cs.ucc.ie

Objective of this Lab

To familarise students with the basis UNIX commands for managing files and directories.

Background: Commands for Managing Files

The commands in Table 1 may be useful for completing the tasks listed below. If you need to view documentation on any command, simply type the following at the unix command prompt:

man <command name>

man cp

Command	What it does
cd	moves you to another directory
pwd	tells you which directory you are in
mkdir	creates a directory
rmdir	removes a directory
ls	lists the contents of a directory
ls -l	lists the contents of a directory (long version)
vi or elvis	edit/create a file
cp	copies a file/directory
mv	moves/renames a file/directory
rm	removes a file/directory
file	check the type of a file
more	view the contents of a file by page

Table 1: UNIX commands which may be useful during this laboratory.

Tasks

You should complete the following tasks. The result will be a directory structure similar to the one presented in Figure 1, except where otherwise noted. Please also ensure that you can answer all questions on UNIX commands from the past exam papers once you've finished this exercise.

1. Log-in to your accounts;
2. Make sure that you are in your home-directory;
3. Create 3 sub-directories of your home-directory: cs1100, cs1102 and cs1101;
4. Change directory so that cs1101 is your current directory;
5. Create two further sub-directories of this directory: labs and reports;
6. In the directory labs create a file called myFirstFile.txt;
7. Make a copy of myFirstFile.txt and call it myFirstFile.copy;
8. Make a copy of myFirstFile.txt and ensure that it is in the reports directory - call it myFirstFile.copy2;
9. Rename the file called myFirstFile.copy that is in the labs directory to be mySecondFile.txt. This is not illustrated in Figure 1.
10. Please also ensure that you can answer all questions on UNIX commands from the past exam papers once you've finished this exercise.

Figure 1: An illustration of how the directory structure that you are asked to develop should look as you construct it.

b.osullivan@cs.ucc.ie

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