# Creating and Editing Files * `nano` * A basic text editor found on most UNIX operating systems. * Gives instructions on how to use it at the bottom of the screen. * `^` stands for `Ctrl` Example output from running `nano arrayDat.txt`. Save any changes by exiting with `^X`: ```bash GNU nano 2.3.1 File: arrayDat.txt ProbeID Sample1 Sample2 Sample3 Sample4 1007_s_at 10.93 11.44 11.19 11.64 1053_at 8.28 7.54 8.06 7.32 117_at 3.31 3.41 3.13 3.13 121_at 4.42 4.32 4.46 4.63 1255_g_at 1.8 1.7 1.75 1.81 ^G Get Help ^O WriteOut ^R Read File ^Y Prev Page ^K Cut Text ^C Cur Pos ^X Exit ^J Justify ^W Where Is ^V Next Page ^U UnCut Text ^T To Spell ``` If you recall, you can mount the storage servers to your local machine using SMB. Since mounting the server makes it look like a local directory on your computer, you can use whatever text editing software that you're comfortable with to edit text files on the computing cluster. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://igb.mit.edu/mini-courses/introduction-to-unix/files/creating-and-editing-files.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.