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labs:unix_basics [2012/01/03 16:50] – [Directory Access/Manipulation] adminlabs:unix_basics [2017/03/15 16:07] – [Copy Files and Directories] admin
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 | ''rmdir <dir>'' | delete a directory; only works if the directory is empty | | ''rmdir <dir>'' | delete a directory; only works if the directory is empty |
 | ''pwd'' | to see the Present Working Directory (the directory that you're currently in) | | ''pwd'' | to see the Present Working Directory (the directory that you're currently in) |
 +
  
 ''ls'' has a lot of optional command-line arguments: ''ls'' has a lot of optional command-line arguments:
-    * ''-l'' a long listing of the files + 
-    ''-r'' reverse order +^ Command-line Argument ^ Meaning ^ 
-    ''-t'' sort by creation time+''-l'' a long listing of the files | 
 +''-r'' reverse order | 
 +''-t'' sort by creation time 
 + 
 +Example: ''ls -lrt'' lists the files in the current directory by creation time, from most recent to least recent, and lists all the information about the files
  
  
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 ==== Copy Files and Directories ==== ==== Copy Files and Directories ====
  
-  * ''cp <source> <destination>'' - copy files +To make a copy of a file (''source'') and name it ''destination''
-   To copy the contents of a directory, use the ''-r'' option.  For example, +
  
-  cp -r <source> <destination>+  cp <source> <destination> 
 +   
 +For example 
 + 
 +  cp myfile.txt myfilecopy.txt 
 + 
 +To copy a directory and its contents, use the ''-r'' option.  ''-r'' means //recursively// For example,  
 + 
 +  cp -r my_src_directory destination_directory
  
 ==== Move or Rename Files ==== ==== Move or Rename Files ====
  
-  * ''mv <source> <destination>'' - move or rename files+Use the ''mv'' command to move or rename files: 
 + 
 +  * ''mv <source> <destination>''
  
 +If the destination is a directory, then the file(s) are moved into that directory.
 ==== Delete Files ==== ==== Delete Files ====
  
-  * ''rm <file>''delete files+  * ''rm <file>''deletes ''file''
  
 ==== View contents of Files ==== ==== View contents of Files ====
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 ===== Printing Files ===== ===== Printing Files =====
  
-To print from the command-line, you can use the ''lpr'' command.  **Do not try to print PDF files or images this way.**  The syntax of the print command is ''lpr -P<printername> filename''.  For example:+To print from the command-line, you can use the ''lpr'' command.  **Do not try to print PDF files or images this way.**  The syntax of the print command is  
 + 
 +  lpr -P<printername> filename 
 + 
 +For example:
   lpr -Pcslab test.py   lpr -Pcslab test.py
 +  
 +The printer name is ''cslab'' when you're in P405 or ''advlab'' if you're in P413.
 +
 +The command ''lpr'' means to print the file. The option 'P' says which printer to use (one of the CS lab printers), and the argument says which file to print--in this case ''test.py''.
 +
 +
 +===== Creating Printable Files =====
 +
 +To create a condensed, printable file of your lab, use the ''printLab.sh'' command.
 +
 +The syntax of the command is
 +
 +  printLab.sh <path_to_lab_directory>
 +  
 +For example, if you're in your ''labs'' directory, to print lab1, you'd write
 +
 +  printLab.sh lab1
 +  
 +  
 +===== Changing Your Password =====
 +
 +To change your password, use the ''passwd'' command.
 +
 +An example run will look something like:
 +
 +  > passwd
 +  Changing password for username.
 +  Old Password:
 +  New Password:
 +  Retype new password: 
 +  passwd: all authentication tokens updated successfully.
 +
 +Note that what you type for the passwords does not show up on the screen for your security.
 +
 +
labs/unix_basics.txt · Last modified: 2017/03/15 16:07 by admin
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