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Single quotation marks suddenly appear around file and directory names
(discuss.tchncs.de)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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If you are referring to seeing filenames with spaces wrapped in single quotes when you do an "ls" then refer to this stackexchange answer for a discussion on the long history of why everyone considers this a major bug but the maintainers refuse to fix it. The short answer is to do "ls -N" to correct this problem, and you will probably want to create an alias to do this automatically for you.