Using the man pages, info pages, and other sources of on-line and Internet information is a vital skill, needed by all users. In this project you will need to find, read, and understand these sources of information in order to answer the following questions. This project is designed to give you plenty of practice using the “man” command. Not all of the answers will be found in the man pages, but all may be found either there or in other resources discussed in class. Be sure to allow yourself plenty of time to complete this project; it usually takes longer than most students expect!
For full credit: You must give an answer, as well as the source of your answer:
While you could use an on-line search engine to find the answers to all these questions (because man pages are on-line), or your book, not using man when the question can be answered that way, or info pages when man doesn't have an answer, will lose you credit. If you don't state the source of your answer, I will assume you searched the Internet.
Since man pages differ between different Unix and Linux systems (and even between versions of the same system), you must use the man and info pages on YborStudent to complete this assignment. (I have verified that each question that can be answered with man or info pages, can be answered on YborStudent.) However, remember that not all questions can be answered with man or info pages.
Remember to state your source (man page title and section, or info page title, or URL) in addition to your answer.
cat foo – bar” do?
(Don't try to run it, just figure it out from the on-line
documentation.
Assume foo and bar are existing files.
Note the spaces and the dash in the command line.) sort a file
named foo in place, that is replacing
the original file with the sorted version, with one command
and no extra files created? /etc/passwd file? date command
can be used to display the current date and time in
Coordinated Universal Time? recode command can convert text and other files
in any of about 280 formats (or “charsets”) to another.
For example you can convert between Unix and DOS text files this way:
cat file | recode ..dos # Convert Unix text file to DOS format cat file | recode dos.. # Convert DOS text file to Unix (ASCII) format
How can the recode command be used to count the
frequency of each of the characters used in a file?
(Hint: Check for an appropriate charset.)
All IT professionals should know standard units. If you don't know what these are be sure to look them up: A bit is one binary digit and a byte or octet is eight bits. Bits are denoted as “b” or “bit”, while bytes are denoted as “B”. A kilo means 1,000 (a thousand) and is denoted as “k”, a mega means 1,000,000 (a million) and is denoted as “M”, and a giga means 1,000,000,000 (a billion) and is denoted as “G”. So “1 kb” or “1 kbit” means a thousand bits, “1 MB” means a million bytes, etc. “1 KiB” means 1 kibi byte.
/etc.) gv resource
file?
(“gv” is a Gnu utility to view
PostScript files.) Remember to include the source of your answer: the man page, info page, or web URL where you found the answer. Email your assignment by copy-and-paste (no attachments please!) to . If possible use the “text” and not the “HTML” mode of your email program. Please use the subject similar to “Intro to Unix/Linux Project #2 (Using man) Submission”, so I can tell which emails are submitted projects.
Projects will not be returned.
Please do not send as attachments.
Do not send to
wpollock@YborStudent.hccfl.edu.
Refer to the Projects and
the Submitting Assignments
sections of your syllabus for more information.
Confused? Send questions about the assignment to . Please use a subject similar to “Intro to Unix/Linux Project #2 (Using man) Question” so I can tell which emails are questions about the assignment (and not submissions).