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So after I modify one of my source files in emacs, when I list the files in the directory, there is a copy of the one I just modified with # signs on either side of it.
Example:
$ cd utility/
$ ls
FRCUtility.java
$ emacs FRCUtility.java
$ ls
#FRCUtility.java# FRCUtility.java
What does the # sign mean? Should I delete the file or keep it? A detailed explanation would be greatly appreciated.
The # signs are put in by emacs when it makes a temporary file. You can delete them if emacs doesn’t do it for you.