Linux

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Linux ApplicationsSean Gavin Wayne State
University

• multi-user environment-- log in user name and
  password -- you never turn the computer on or
  off

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Linux

• Linux with KDE graphic user interface
• navigation where are my files?
• command line interface listing, moving,
  finding, copying my files
• applications web browsing, text viewing,
  editing my files

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graphic user interface KDE GNOME makes the
desktop look like a windows desktop point and
click
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home directory browser
search
for files

help shell terminal for entering
text commands start menu like windows
icons
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Command Line Interface

• Shell Icon window with a prompt
• rhic15seangt ls
• type keyword commands execute programs
• command ls lists files in a directory
• file names have format name.xxx (no blank
  spaces!!)
• xxx extension indicates the files
  function sean.tex lt word processor
  (latex) sean.cpp, sean.f lt C or Fortran
  program momLetter.txt lt plain text
  (asci) web_page.htm lt web document (html)
• no blank spaces, case sensitive

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Favorite Unix Commands

• ls list files gt ls
• gt ls .txt (list files with extension .txt)
  
• ls l list files with size, etc. gt ls l .cpp
• ls a list all files gt ls a
• lpr prints files gt lpr sean.txt
  (default printer) gt lpr
  Pmono1200 sean.txt (specify printer)
• cd change directory gt cd MyDirectory
• gt cd (? home directory)
• mkdir make new directory gt mkdir MyNobel
• rm remove file gt rm wrongStuff.txt
• rmdir remove directory gt rm WrongStuff
  (delete contents first)
• cp copy file gt cp old.txt new.txt
  (keeps old.txt)
• mv move file gt mv old.txt new.txt
  (kills old.txt)
• more types file on screen gt more money.txt
• pwd print working directory gt pwd

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FTP Moving Files
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Running Programs from Command Line

• can type program name at the prompt to start
  application
• gt netscape web browser
• gt ghostview pic.ps postscript file viewer
• gt gv pic2.eps a better postscript viewer
• gt acroread taxReturn.pdf acrobat pdf file
  viewer
• compile and execute programs that you have
  written
• text editors emacs, xemacs
• note also find common programs are on the start
  menu

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Summary

• Unix many choices, infinite possibilities
• The setup at BNL, Cornell, Fermi will be
  different
• navigation in KDE graphic user interface
• command line interface ls, cd, mv, cp, rm
• applications netscape, ghost view, xemacs

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