Difference between revisions of "CSC220 Lab 1 2010"
| Line 3: | Line 3: | ||
<br \>[[File:UnderConstruction.jpg|300px]] | <br \>[[File:UnderConstruction.jpg|300px]] | ||
</center> | </center> | ||
| + | |||
| + | You can work in pairs on this lab if you wish. Otherwise work individually. | ||
| + | |||
| + | =Login= | ||
| + | |||
| + | |||
| + | * Login to a Linux box around you using your CSC220a account. | ||
| + | |||
| + | =Question Group 1= | ||
| + | |||
| + | * What is the '''path''' of your account? In other words, what subdirectories does one have to traverse to reach your account. | ||
| + | * What other subdirectories are at the same height as yours in the directory tree? | ||
| + | * You will notice that all user accounts are in a major directory called '''Users'''. The ''old'' standard for users on a linux system is to have the users in a directory called '''home''' in the '''root''' directory. | ||
| + | * You will notice that some user accounts still exist in '''home'''. Which are they? | ||
| + | |||
| + | =Question Group 2= | ||
| + | |||
| + | * With Linux, the name of the printers supported are listed in a file called /etc/printcap. Look at its contents. | ||
| + | * Figure out a way to get only the entries from this file that represent printers that are in Ford Hall. | ||
| + | |||
| + | =Question Group 3= | ||
| + | |||
| + | * Open a browser window and load up the following URL: http://maven.smith.edu/~hadoop/log.txt | ||
| + | * Notice that it is a long log of the output of a research program I have been running recently. It is very long and contains a lot of information: some useful, some not. | ||
| + | * You are going to get a copy of this file into your account. Instead of copying and pasting the text into a file, you are going to use a useful utility called '''wget'''. '''Wget''' is a Linux utility that allows you to grab Web pages from Web sites, without using a browser. | ||
| + | |||
| + | :Try it: | ||
| + | |||
| + | wget http://maven.smith.edu/~hadoop/log.txt | ||
| + | |||
| + | * Check that the file is in your directory | ||
Revision as of 14:11, 7 September 2010
Page under construction!
You can work in pairs on this lab if you wish. Otherwise work individually.
Login
- Login to a Linux box around you using your CSC220a account.
Question Group 1
- What is the path of your account? In other words, what subdirectories does one have to traverse to reach your account.
- What other subdirectories are at the same height as yours in the directory tree?
- You will notice that all user accounts are in a major directory called Users. The old standard for users on a linux system is to have the users in a directory called home in the root directory.
- You will notice that some user accounts still exist in home. Which are they?
Question Group 2
- With Linux, the name of the printers supported are listed in a file called /etc/printcap. Look at its contents.
- Figure out a way to get only the entries from this file that represent printers that are in Ford Hall.
Question Group 3
- Open a browser window and load up the following URL: http://maven.smith.edu/~hadoop/log.txt
- Notice that it is a long log of the output of a research program I have been running recently. It is very long and contains a lot of information: some useful, some not.
- You are going to get a copy of this file into your account. Instead of copying and pasting the text into a file, you are going to use a useful utility called wget. Wget is a Linux utility that allows you to grab Web pages from Web sites, without using a browser.
- Try it:
wget http://maven.smith.edu/~hadoop/log.txt
- Check that the file is in your directory
