Unix Command Summary

  ls           List all files and directories in the current directory.
  ls -l        Do listing in long form, giving additional information
               such as file lengths, read/write/execute privileges.
  ls -a        List all files, including hidden files.
  cd name      Change directory to the indicated directory.
  cd           Change to the login directory
  cp f1 f2     Copy file f1 to file f2
  clear        Clear the screen
  cc f1	       Compile a C program and create an executable named "a.out"
  gcc f1       Compile a C program and create an executable named "a.out"
  gdb f1       Debug the executable file named f1
  mv f1 f2     Move file f1 to file f2.  When in the same subdirectory, rename f1 as f2.
  pwd          Print working directory.
  exit         Logout
  javac f1     compile a Java source file
  java f1      run a compiled Java file
  jdb f1       debug a Java program
  chmod        Change the read/write/execute privileges of a file.
  rm file      Remove (delete) the indicated file or files.
  cat file     Print the indicated file to the terminal window.
  mkdir name   Create a subdirectory with the given name.
  rmdir name   Remove (delete) the indicated subdirectory [It must be empty].
  man command  Give help information for the given command.
  man -k keywd Give all commands referring to the given keyword.
  setenv       Set environment variables.
  printenv     Print all environment variables.
  ps -ef       List current running processes.
  kill         Used to kill current processes.
  alias        Used to define new command names or macros.
               To see the current names set using alias, simply
               type alias and a carriage return.
  &            Execute a program as a background process
  telnet       Used to log into another account and/or computer.
  ftp          Used to transfer files between accounts and/or computers.