UNIX Seminar

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UNIX Seminar
IEEE UBC Branch
Presented by Iris Wu Erin Lim
.
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Start with Dilbert
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Why UNIX?

• 1. You already know NT
• 2. CPSC 252 Assignments Projects
• 3. Long term benefits
• - JOBS 90 high-tech companies in lower
  mainland use UNIX as their primary operating
  system!!
• -They WILL ask you questions on UNIX

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UNIX environment

• 1. Common Desktop
• Some typing
• Most similar to NT
• 2. Open Windows
• Lots of typing
• 2. Command Line
• All typing

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Directory File Commands

• ls -alu List of the content the current
  directory. Similar to DOSs dir command gt ls
  al
• mkdir Create a directory gtmkdir dirname
• rmdir remove a directory gt rmdir dirname
• cd   change current directory gtcd pathname
• mv -rp move/rename a file or directory gt mv
  source target

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Directory File Commands

• cp -rp copy a file gt cp source target
• rm -irf remove a file or directory gtrm i file
• gtrm rf subdirectory
• chmod -R change the read/write/execute/ permssion
  on a file or directory gtchmod mask file
• pwd   display current directory gt pwd  

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Print Commands

• lpr -P print a file to the printer specified
  by the P flag gtlpr Pprintername filename
• lprm -P jobnumber dequeue a print job from the
  printer specified by the P flag gtlprm
  Pprintername jobname
• lpq -P display the jobs queue of the printer
  specified by the P flag gtlpq Pprintername
• Note The printer in the 3rd floor lab is ntx
• gtlpq Pntx (shows all the jobs on ntx)

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Other Commands

• More display contents of a file on the screen gt
  more textfile
• man  show the help manual for a specific
  command gt man command-name
• history  display a list of previously typed
  command gt history

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Quiz Time!

• Display current directory?
• Move a file from one dir to another?
• What command is used for changing the permission
  on a file, say test.txt to readable/writable/execu
  table by everyone? (Full command with the option
  that should be used)

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More advanced command for Coding

• diff difference between two text files gt diff
  filename1 filename2
• grep -in check the existence of a particular
  string within a file or group of files gtgrep in
  "string" file_list
• ping check the current status of a workstation,
  server, or printer gt ping IP or name
• time time a process gt time command

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Useful Applications

• Surfing gtnetscape
• Email (for ece) gtpine
• Lecture Notes in .pdf format gtacroread filename

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Cheating Machine Stealing

• rlogin ltfaster-machines name OR IP addressgt
• setenv DISPLAY ltyour machines namegt0.0
• Now you can do your work on his/her machine
  UN-NOTICED

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Advanced Commands

• Erins stuff

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CONGRATULATIONS

• YOU ARE NOW A CERTIFIED UNIX GURU