this post was submitted on 14 Mar 2024
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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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-R to recurse. Good for chmod and chown
useful for
chown
, less so forchmod
: I almost never want my dirs and files with the same permissions, and I made this mistake a few times.If all you need is to restore read permissions, you could use symbolic rather than octal:
If you don't want to grant read permissions to everyone you can replace the
a
with whichever applies ofugo
for user, group or other.Go over it with a second chmod -R but with -X to add execute but only to directories
Don't give all your files execution permissions.
That's the same as 755, except you are only setting execute on the folder?
Why would you want execute on anything but the folder?