Linux tools on Grex#

There are a number of general and distro-specific tools on Grex that are worth mentioning here. Such tools are: text editors, image viewers, file managers, … etc.

Command line Text editors#

Command line text editors allow you to edit files right on Grex in any terminal session (such as SSH session or an X terminal under OOD):

• The (arguably) most popular editor is vi, or vim. It is very powerful, but requires some experience to use it. To exit a vim session, you can use the ZZ key combination (hold shift key + zz), or ESC, :x!. There are many vi tutorials around, for example this one or learn VIM in X minutes .

• Another lightweight text-mode editor is nano. It provides a self-explanatory key-combination menu at the bottom of the screen. An online manual can be found here .

• A more modern alternative to “nano” is micro . On Grex it is available only as module (module load micro) . micro supports syntax coloring for a number of programming languages. The webpage of micro .

• Midnight Commander file manager provides a text-mode editor that can be invoked stand-alone as mc -e filename, or from within mc by using F4 or Edit menu item on a selected file.

GUI Text editors#

Vi has a GUI counterpart which is accessible as evim command. There are also the following GUI editors: nedit and xfe-xfw.

Image viewers#

There are the following commands that can be used for viewing images: xfe-xfi and nemacs. A simple PDF viewer for X11, xpdf and ghostscript are also available.