Today's Class Exercise

• The Class Exercises are designed to give you hands on experience
• All work for this course will be done on the Unix machine users3
• In this exercise you will learn to do four things ...
• which you need to know for this course
  • Connecting to a Unix machine
  • Listing the contents of a directory
  • Moving to another directory
  • Creating a new directory
• This video demonstrates the last three topics

Log in to users3

• Install putty.exe if you have a Windows machine
  Download it from https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html.
  For more information go to https://www.cs.umb.edu/~ghoffman/linux/remote_access_windows.html
• Run the Terminal program if you have a Mac
  You will find this program in the Utilities directory inside the Applications directory.
  For more information go to https://www.cs.umb.edu/~ghoffman/linux/remote_access_mac.html
• Run an SSH client
  Run putty.exe if you have a PC or Terminal if you have a Mac.
• Enter appropriate information
  You want to connect to users3.cs.umb.edu.
  If you need a port number use 22.
  The account name is the name you used when you ran the apply program.
• Enter your password

List the contents of a directory

• After have connected to users3 you will be in your home directory
• To see what is inside a directory, run the ls Unix command
• ls stands for "list"
• Run

  ls

• The output will show all the files and directories inside you home directory
• If you have completed the Apply process you should see an it114 directory
• All the work you do for this course must be created inside this directory

Moving to another directory

• To move to another directory you need to run the Unix cd command
• cd stands for "change directory"
• Run

  cd it114

• To see your new location you need to run the Unix command pwd
• pwd stands for "print working directory"
• Run

  pwd

Create new directories

• To create a new directory you need to run the Unix mkdir command
• mkdir stands for "make directory"
• You need to create a directory for your homework assignment
• This directory must named hw
• You must also create a directory for your Class Exercises
• This directory must be named ex
• To create the hw directory run

  mkdir  hw

• To create the ex directory run

  mkdir  ex

• To check that you have done this properly run

  ls

• You should see

  ex  hw