Getting a CS Account

1
Getting a CS Account Step 1 Go to any CS
Department computer with a login screen and type
in the username of newacct Password of
newacct Step 2 Follow Directions. If you are
registered in a CS course, it will allow to get
an account.
2
Basic Unix

• Working in Unix
• This lesson will work for both Unix and Linux
  machines
• Unix is case sensitive so be careful about
  typing. Use lowercase most of the time.
• Topics Covered
• Commands
• Editors
• mail
• compiling programs
• File manipulation
• HINT By a cheap unix book.

3
Getting Started

• Login Demonstration
• Use the delete key to erase a character,
  backspace does not always work.
• Change Password demonstration
• running telnet demonstration.
• To logout type exit R

4
Other Useful commands

• CTRL-U Erase input line
• CTRL-S Pause output from a program
• CTRL-Q Restart the output from a program
• CTRL-D Places an end-of-file character at the
  end of some files.
• CTRL-C System Interupt

5
Unix Commands that you will find useful

• Basic Command Format
• command options(s) filename(s)
• options Options are often single letters
  preceded by a dash ( ex -aldwes)
• filenames There must be spaces between the
  command, options and filenames. Filenames must
  match the file name and path exactly.

6
List Files or List Structure

• Function Lists the files and directories.
• Examples
• ls
• ls al
• ls al chapt1.txt
• ls al .txt
• Too many options to list. For more detail in
  Unix type man lsR

7
Directory and File Structures

• Files are organized into directories in unix.
  When you login you are placed in your home
  directory which is always identified as a tilde (
  ) and your user name.
• example gaitrosd
• Change to Home directory
• cd gaitrosd

8
Basic Unix Commands Dr. Whalley

• 1. newacct (creating an account)
• 2. logging in
• 3. logging out
• 4. changing password (passwd)
• 5. printing (lpr -Pmajors or lpr -Ppclab)
• 6. checking status of print job (lpq -Pmajors)
• 7. remove job from print queue (lprm -Pmajors)
• 8. e-mail (pine, reading messages, composing
  messages)

9
Basic Commands Part II Dr. Whalley

• 9. editor (pico)
• 10. list files (ls)
• 11. remove files (rm)
• 12. rename files (mv)
• 13. copy file (cp)
• 14. examining files (more, cat)
• 14. make directory (mkdir)
• 15. remove directory (rmdir)
• 16. compiling a C program (g)
• 17. putting jobs in the background ()
• 18. using a source level debugger (ddd, gdb)

10
newacct

• 1. newacct (creating an account)
• Note It is required that you get a computer
  science account for this class.
• How to get a new CS account
• a. Go to the Computer Science majors lab. It's
  room 006 in the basement
• of Love Building (across from the
  elevator).
• b. Find a Linux machine or Sun Sparc station.
  Most of them are on the
• left side of the lab as you enter the room.
  

11
newacct

• c. Type "newacct" for the login and "newacct" for
  the password.
• d. Follow the instructions that are given to
  you.
• e. Ask for help from the lab monitor if you
  have problems.
• or
• a. Find a machine that is on the internet.
• b. Telnet to quake.cs.fsu.edu.
• c. Type "newacct" for the login and "newacct"
  for the password.
• d. Follow the instructions that are given to
  you.

12
logging in

• 2. logging in
• From a Linux machine or Sun Sparc station in
  the CS lab Type in your login name and password.
  That's it!
• From a Windows NT machine in the CS lab
• a. Type in "majors" for the username
  and leave the password field blank.
• b. Another screen will come up. This is
  where you type in your login name and password.

13
logging in

• c. Click Start (in the lower left hand corner of
  the screen).
• d. Click run.
• e. Then type Xwin32
• f. Once again type in your login name
  and password.
• From another location
• a. Make sure the machine is connected to
  the internet.
• b. Telnet to quake.cs.fsu.edu
• c. Type in your login name and
  password.

14
logging out

• 3. logging out
• There are three command method can log off
  from Unix
• a. use 'logout' command
• b. use 'exit' command
• c. Press the control key and the 'd' key at
  the same time (CTRL-D)

15
Changing Password

• 4. changing password (passwd)
• Use the 'passwd' (no quotes) command to change
  your password. (Actually
• on our system, you can accomplish this by
  rlogining into "nu", e.g.
• "rlogin nu". This will put you into the
  'passwd' program automatically.)
• Follow the on screen instructions to complete.
  

16
Printing

• 5. printing (lpr -Pmajors or lpr -Ppclab)
• There are two printers you can use to print
  out your program (the file
• containing source code). One is the laser
  printer in the majors lab and
• the other is the dot- matrix printer outside
  the lab.
• The command to print a file to the laser
  printer is
• lpr -Pmajors ltfilenamegt
• The command to print a file to the
  dot-matrix printer is
• lpr -Ppclab ltfilenamegt

17
Checking Print Status

• 6. checking status of print job (lpq -Pmajors)
• Use the command 'lpq -Pmajors' to check the
  status of Majors lab printer.
• Use the command 'lpq -Ppclab' to check the
  status of Majors lab printer.

18
Remove a print job

• 7. remove job from print queue (lprm -Pmajors)
• If you send a job to the printer but then
  decide you don't want it to be printed on the
  majors lab laser printer. The command 'lprm'
• (no quotes) will allow you to purge the job.
  There are two methods of purging a job

19
Remove a Print Job

• To purge all jobs under your loginid, use the
  command
• lprm -Pmajors ltuseridgt
• To purge a specific job, you must first
  determine the "print job number" and then specify
  the job number on the lprm command.
• The job number can be determined by using
  the lpq command. Here is the sequence
• a. lpq -Pmajors
  Look at all jobs in the print queue
  
  and find the entry that you want to
  
  purge. Get your 'job id'.

20
Remove a Print job (lprm)

• b. lprm -Pmajors ltjobidgt Specify the job
  id as shown. This will cause only the job
  specified to be purged.

21
Pine (E-Mail)

• 8. e-mail (pine, reading messages, composing
  messages)
• Use the command 'pine' to read email (a
  message tells you that you have received mail
  when you login). After typing this command,
  "pine" will enter you into an interactive,
  menu-driven mailer. After reading your mail, you
  can save it, reply, delete it, and a variety of
  other functions.
• See the pine man page for full details.

22
9 - Pico Basic Text Editor

• invoke by the unix command
• pico filename
• Basic text editor with cursor movements.
• Mouse does not work in this environment.
• Always available in unix world.

23
Commands in pico

• CTRL g Display Help
• CTRL f Move cursor 1 character right.
• CTRL b Move curse 1 character back
• CTRL p Go back 1 line.
• CTRL n Go forward 1 line
• CTRL a Go to beginning of line.
• CTRL e Go to End of line
• CTRL v Go forward 1 page
• CTRL y Go back 1 page
• CTRL w search for a string
• CTRL L refresh screen
• CTRL d Delete character
• CTRL - Mark text for select
• CTRL k Cut text
• CTRL u Paste text
• CTRL I Insert tab
• CTRL r insert external file contents
• CTRL o write buffer to file
• CTRL x exit pico

24
List or Directory (ls)

• 10. list files (ls)
• Use the command 'ls' to list the
  contents of current directory.
• To list the contents of another directory, you
  can either "cd" to it and type "ls", or you can
  simply supply the directory name as an argument.
• For example "ls /etc", would list the
  contents of the directory /etc.

25
List or Directory (ls)

• Use command 'ls -al' to list all file with
  detailed attributes.
• This includes permissions, owner,
  group, date and time of last update .
• Use the command 'ls -F' to list files
  with a single character attribute.
• "ls -F" would place a / after
  directories and an after executable files.

26
Remove Files (rm)

• 11. remove files (rm)
• Use the command 'rm ltfilegt' to remove the
  file ltfilegt.
• By default, it does not ask for conformation
  before wiping out exactly what you tell it to.
  For example, this command would erase all files
  ending in .o', and .out'
• rm .o .out
• But be careful, the following command would
  remove all files in the current directory
• rm

27
Remove Files (rm)

• You can remove a directory that you own with the
  "rmdir" command. The directory must be empty
  before it can be removed. Use the "ls -a" command
  to make sure you have removed any hidden files.
• Remember the rm command is used to delete
  files. Once deleted, a file cannot be restored by
  yourself.

28
Rename (mv)

• 12. rename files (mv)
• Use the command 'mv ltfile1gt ltfile2gt' to
  rename ltfile1gt as ltfile2gt.
• This command can also be used to move a file
  or a directory to another directory.

29
Copy files (cp)

• 13. copy file (cp)
• Use the command 'cp ltfile1gt ltfile2gt' to copy
  the contents of ltfile1gt into ltfile2gt.

30
Examine Files (more)

• 14. examining files
• Use the command 'more ltfilegt' to examine
  the contents of the file ltfilegt.
• The command 'more' will display a file or
  files one video page at a time. Use the space bar
  to move on to the next page use the return key
  to scroll one line at a time. There are a bunch
  of other useful functions built into"more", such
  as searching for the next occurrence of a string,
  and scrolling backwards. screen by screen and use
  command 'q' to exit

31
Make a Directory (mkdir)

• 14. make directory (mkdir)
• Use the command 'mkdir ltnamegt' to make a new
  directory ltnamegt.

32
Remove a Directory (rmdir)

• 15. remove directory (rmdir)
• Use the command 'rmdir ltnamegt' to remove the
  directory ltnamegt.

33
Putting jobs in the background

• 17. putting jobs in the background Perform
  commands in the background by ending the command
  with a ''.
• Issuing commands in such a manner is particularly
  useful for long running jobs or ones that provide
  their own user interface window.

34
Compiling Fortran Programs

• All Fortran program files must in with a .f
  postfix.
• Example( hello.f )
• Type the unix command
• f77 hello.f
• The executable is will be a.out.
• f77 o hello.out hello.f
• This one puts the executable in hello.out