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How can I chmod 777 all subfolders of /var/www?
Posted by Thang Le Toan on 19 July 2018 08:45 AM

Files and directories in Unix may have three types of permissions: read (r), write (w), and execute (x). Each permission may be on or off for each of three categories of users: the file or directory owner; other people in the same group as the owner; and all others. To change the mode of a file, use the chmod command. The general form is chmod X@Y file1 file2 ...

chmod a-w file (removes all writing permissions)
chmod o+x file (sets execute permissions for other (public permissions))
chmod u=rx file        (Give the owner rx permissions, not w)
chmod go-rwx file      (Deny rwx permission for group, others)
chmod g+w file         (Give write permission to the group)
chmod a+x file1 file2  (Give execute permission to everybody)
chmod g+rx,o+x file    (OK to combine like this with a comma)

u = user that owns the file
g = group that owns the file
o = other (everyone else)
a = all (everybody)

r = read aces to the file
w = write access
x = execute (run) access 


cd /var/www
find -type d ! -perm 777 -exec chmod 777 {} \;

for the ftp creating all files with different permissions, you might want to look for the umask of ftpd, how that daemon is started

 

You can specify the permissions when you create a directory using the -m option:

mkdir -m 777 dirname

Or you can set the permissions recursively.

sudo chmod -R 777 /var/www

Before using either of these, really consider if you want your filesystem to be so accessible.

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