In this section we will briefly cover Goal: Briefly introduce two other common and popular text editors available for HPCs and used on the command-line in Linux Command Line Interface.
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Nano
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GNU nano is a small and easy to use command line text editor. Besides basic text editing, nano offers features like undo/redo, syntax coloring, interactive search-and-replace, auto-indentation, line numbers, word completion, file locking, backup files, and internationalization support. Nano is terminal based and for use in command line. There are add-ons which allow it to be used in a GUI More information for using Nano on ARCC HPCs may be found here.
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Nano - Try it:
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In an HPC terminal window, launch nano with the nano command. To open a specific file in nano, use command nano </path/to/file/filename> to open that file. You can insert text simply by typing it in. Use the arrow keys to navigate through the document. The Ctrl key is a key for “special” or common file-handling and administrative keystrokes. Hit Ctrl+x to exit the file. Nano has many “cheat sheets” available online.
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Emacs
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Emacs is a portable platform for creating applications with a text user interface. It serves as a fully programmable text editor. Many users use Emacs in a variety of different ways. Emacs may be run in a command prompt (command line environment) or in a GUI. It can also be used as an IDE (Integrated Development Environment). More information for using Emacs on ARCC HPCs may be found here.
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Emacs - Try it (GUI):
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To open it in a Graphical User Interface: Open OnDemand Launch a OnDemand XFCE Desktop Session Open Emacs by opening a terminal within your OnDemand desktop, and typing: emacs , then hit enter/return key You should see a GUI version of emacs. Click on the Emacs
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Tutorial Link
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Emacs - Try it (Command Line):
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To open it in a GUI: Open OnDemand Launch shell terminal window Run emac with emacs command. Type ctrl + h to get to the help screen. Type ctrl + x, followed by ctrl + c to exit out of emacs
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vimtutor: We’ll be walking through this
Google: Many online tutorials:
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LinuxFoundation: Vim 101: A Beginner’s Guide to Vim
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FreeCodeCamp: How to Use Vim – Tutorial for Beginners
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OpenVim: Interactive Vim tutorial
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Cheat Sheets: (find what works for you)
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| title | Emacs Text Editor Cheat Sheets |
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08.02 Further Trainings: UWYO LinkedIn
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08.03 Summary
In this workshop we have:
Introduced users, using the Linux command line environment, to text editors: Specifically vim.
Demonstrated how to:
Open, edit, update, save and quit a text editor.
Use the keyboard and shortcuts to navigate around the text file.
Use the command line to search for terms within the text file.
Next Steps