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Numeriske Metoder. FAQ.

  1. Q: Despite all your advocating of free software I will run Windows. How can I get all this POSIX stuff with C compiler and C++ compiler and make and Octave and what not?

    A: You can install a free (as in freedom) POSIX system for Windows, called cygwin. You can get it from www.cygwin.com. Download the setup.exe file, run it and follow the instructions.

  2. Q: My internet connection is too slow for the graphical editor gedit. Which (reasonable) text-based editors can I use through a ssh connection?

    A: nano

  3. Q: How can I copy files from one POSIX computer to another?

    A: Use the secure copy command, scp:

    scp user1@host1:file1 user2@host2:file2


    However, some hosts don't like it. If this happens, you will have to use secure-shell-file-system, sshfs.


  4. Q: How can I mount my directory /usr/users/jensen on some Linux server lifa.phys.au.dk onto a directory /home/jensen/mylifa on my laptop?

    A: First install secure shell file system
    sudo apt-get install sshfs
    then mount securely your files:
    sshfs jensen@lifa.phys.au.dk:/usr/users/jensen /home/jensen/mylifa
    to unmount use
    umount /home/jensen/mylifa.

  5. Q: How can I view myfile.png on the screen?

    A: Don't forget to ssh with -X option and use eog (Eye Of GNOME):
    eog myfile.png &