CPSCI 105: Explorations in Computer Science

Lab 1

January 23, 2007

Use Citrix to use Exceed to connect to warp, and log in. Then we'll discuss the following. If at any point you have a question, be sure to ask. At the end of lab today, review the topics listed below and make sure that you understand what they mean (or how to do them).

The Shell

• what a shell is
• what bash is
• get help for commands
• use the online UNIX manual (man)
• change your password on warp (passwd)

Unix File Management

• understand the structure of the UNIX file system and how to navigate it (cd)
• understand the special shorthand notation for various directories (/, ~, ., and ..)
• know what your home directory is
• know how to return to your home directory from no matter where you are in the file system
• understand the concept of the working directory
• know how to find out where you are in the file system (pwd)

• know how to manage directories (mkdir and rmdir)
• know how to list (ls) the contents of your directory
• know the file “wildcard” characters
• understand the command–options–argument sequence
• understand access permissions for files and directories
• know how to read the access permissions on a file or directory
• know how to change the access permission for a file or directory (chmod)

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