chmod - replicate user permissions to group/world

问题

I have a need to make some folders/files (recursive) have the same permissions as that of the user. So:

• 0755 -> 0777
• 0644 -> 0666

How can I do so? Perhaps a little secret command I do know of?

If there is no easy way then perhaps I would need to create a loop and test/assign. Ultimately I only need to deal with 3 types:

Folders should be 777, most files 666, executables 777.

回答1:

find can do the work of finding files with a given permission set and running the smallest possible number of chmod invocations necessary to cover them.

find . \
  '(' -perm -0700 -exec chmod 0777 '{}' + ')' -o \
  '(' -perm -0600 -exec chmod 0666 '{}' + ')'

回答2:

There is no command that does for you. You do need a little loop:

for file in $(find . -print)
do
  if [ -d $file -o -x $file ]; then
    chmod 777 $file
  else
    chmod 666 $file
  fi
done

来源：https://stackoverflow.com/questions/41248710/chmod-replicate-user-permissions-to-group-world