Graphics in TTY Something has come up which demands me to work only in command line. My primary job is programming (mostly in Fortran and Octave) and I need to display plots. As a lame example: I open octave and type `ezplot('sin(x)')` and it outputs that X11 Display Environment not set and unable to open display. Is there any way for me to view graphics in TTY? Obviously, I don't expect awesome graphics but I need to see if I am on the right track once a while. My current algorithm is extremely inefficient. I `print -djpeg foo.jpeg` and then scp it to my neighboring computer. Borrow that and continue.

If you simply have a series of `.jpeg` images that you wish to display in a tty, you can use `aview` or `asciiview`. When calling `asciiview` with an image, it will convert the image to the `.pnm` format - using an external program like NetPBM or ImageMagic - before passing it to `aview` for displaying. The `.pnm` is the `ascii` image format used to represent the image as set of characters. To view an image in this format, simply use:


$ asciiview foo.jpeg


or to save a `.pnm` copy first:


$ convert foo.jpeg foo.pnm
$ aview foo.pnm


These support the driver from `aalib`.