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Working Remotely

Working Remotely. Clif Presser cpresser@gettysburg.edu. Links. Software by course: http://cs.gettysburg.edu/~cpresser/resources/software.html Resources from today’s colloquium http:// cs.gettysburg.edu /~ cpresser /resources/. Outline. Skills Getting the software. Transferring files.

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Working Remotely

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  1. Working Remotely Clif Presser cpresser@gettysburg.edu

  2. Links • Software by course: • http://cs.gettysburg.edu/~cpresser/resources/software.html • Resources from today’s colloquium • http://cs.gettysburg.edu/~cpresser/resources/

  3. Outline • Skills • Getting the software. • Transferring files. • Terminal access. • GUI on the network.

  4. Good Skills to Learn • Operating a computer via terminal. • Compiling and running programs outside of a development environment. • Keyboard shortcuts. • Changing environment variables. • Juggling.

  5. Java Development • Java Development Kit (Oracle) • Command line tools • Integrated Development Environment • Eclipse • Netbeans • Dr. Java • XCode

  6. Good Text Editors • Emacs (Windows and Mac) • TextWrangler (Mac) • Notepad2 (Windows)

  7. Unix-like Tools Windows • Cygwin • Mingw Mac • Applications -> Utilities -> Terminal

  8. Transferring Files • Samba (Windows Shares) • H-Drive: • smb://studenthome.ms.gettysburg.edu/username$ • CS Files: • smb://dijkstra.cc.gettysburg.edu/username • Use College password. Domain: GETTYSBURG

  9. Secure Transfer Ssh(Windows) Fugu (Mac) CS: dijkstra.cc.gettysburg.edu H-Drive: ftp.gettysburg.edu Port: 222 (not the default) sftp: command line version

  10. Using the Command Line • Navigating • ~/ your home directory • ls list files in the current directory • ls -l • ls -a • cd change the directory • cd .. • cd = cd ~ • pwd reports present working directory

  11. Using the Command Line • Other commands • more and less (read a text file) • SPACE – forward one page • ENTER – forward one line • q – quit • cp: copy • mv: move (rename) • grep: search a file for text • apropos: search commands • man: get help on a command

  12. Command Line Editing • Left/Right Arrows to edit • <tab> for completion • Ctrl-a Ctrl-e beginning and end • Ctrl-k kill (cut) • Ctrl-y yank (paste) • !<letters> Use to repeat a command.

  13. Command Line Development • Editors • nano • emacs -nw • Compile • javacMyFile.java • g++ MyFile.C • Execute • java MyFile • a.out

  14. Connecting Remotely • ssh • Hosts: gbcsN.cc.gettysburg.edu • N=1..22 • Port: 222 • Commands: • ssh gbcs3.cc.gettysburg.edu –p 222 –l user • ssh user@gbcs2.cc.gettysburg.edu:222

  15. Displaying Remotely (X11) • X Server: your screen • X Client: program running at the lab. • Software: Xming, cygwin • ssh tunnel: • ssh user@gbcs5.cc.gettysburg.edu -p 222 –X

  16. Last Notes A word of warning. Ask for help. exit(0)

  17. SlideIndexOutOfBoundsException

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