Vote up 1. I use both, as needed. Appendix B of NARA Bulletin 2015-04 states that spaces aren’t allowed in filenames. I have seen a couple of tests where the dash is the better results. I'm more comfortable with underscores. Actual webpage urls are a whole different story. One issue with underscores: usability. The reasoning behind this is very simple. Example: Let’s say you’re selling icons. example: fig 3-23 11 of 14.tif to fig_3-23_11_of_14.tif List Solutions Only 16 … PrestaShop where. Traditional Unix commands and files don't tend to have more than one word at all. I didn’t have an immediate answer about it, but let’s test it out! For a perfect example of this, look at Wikipedia. In other words, on MacOS, the underscore character "counts" as text, but hyphens and spaces do not. For example, “File Name.doc” would appear on-line in the URL as “File%20Name.doc” where?. It is common in computer programming to use an underscore just before the name of a file intended for internal use within a computer library, or for a header file. I remember Matt Cutts saying it would be his preference to use a - instead of an _ when separating two words in a file name. Make file and directory names lowercase. Empty space signifies the "end" of a character string. Also when transferring files between different operating systems with different file naming conventions the underscore avoids using what may be an illegal character in another OS. Use only standard ASCII alphanumeric characters in file and directory names. THe underscore sometimes is considered as part of the word or such but the dash is a definite divider. Dash `-` in `sourceName` gets changed to underscore `_` inside files but not in file names #1168. For most (european) keyboards, typing the underscore sign requires holding down the SHIFT key. Why? Web environments translate spaces and will render them as “%20”. #1. The reason is that, for example, a folder named u_2 (after the band, of course) can also be parsed as an attempt to "underlay" a resource named "2" over the base image.. To be on the safe side, you should make sure you stick to at least one of the following principles: Check out his Webmaster Hangout for the full explanation. Feb 02, 2015 - Posted by Tomek Obirek in On-Page / Site Optimization | 2 Responses | 15829 Views. Before I started building a LFS system, I was thinking that the underscore ("_") was the intended replacement for space. 2. In older OSes the underscore was used in lieu of a space because the OS could not process filenames with spaces. Deno imports modules from URLs, e.g. I've just discovered, when searching for a file named with dashes such as "file-test-test.anything", Finder cannot see it if I search without dashes; "file test test.anything". Have a question? For your own files it is really up to you. Using a dash or underscores in file names. Specific recommendations for naming chemistry-related files . It’s a hot topic for argument when the time comes for corporate standards (and when Network Engineers have beverages in a public house). Do not exceed 260 characters for total folder & file character count. Most are a few letters. I avoid spaces because they are a pain to deal with on the command line. So, I group the common part of the name using underscore and then add "meta data" in the same way, and separate the parts with a dash. The underscore is used as a diacritic mark, "combining low line", ̲ , in some languages of Egypt, some languages using the Rapidolangue orthography in Gabon, Izere in Nigeria, and indigenous languages of the Americas such as Shoshoni and Kiowa.. I need a script to change the all the spaces in the file names to underscore. Spaces and will render them as “ file % 20Name.doc ” where? for related information and. 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