Merge remote-tracking branch 'github/master'

1 files changed, 13 insertions, 3 deletions

diff --git a/plugins/perms/README.md b/plugins/perms/README.md
index ae7a36b9d..ae10fa659 100644
--- a/plugins/perms/README.md
+++ b/plugins/perms/README.md
@@ -10,6 +10,16 @@ plugins=(... perms)
 
 ## Usage
 
-* `set755` recursively sets all given directories (default to .) to octal 755.
-* `set644` recursively sets all given files (default to .) to octal 644.
-* `fixperms` is a wrapper around `set755` and `set644` applied to a specified directory or the current directory otherwise. It also prompts prior to execution unlike the other two aliases.
+> **CAUTION:** these functions are harmful if you don't know what they do.
+
+- `set755`: sets the permission to octal 755 for all given directories and their child directories (by default, starting from the current directory).
+
+- `set644`: sets the permission to octal 644 for all files of the given directory (by default, the current directory), recursively. It will only affect regular files (no symlinks).
+
+- `resetperms` is a wrapper around `set755` and `set644` applied to a specified directory or the current directory otherwise.
+  It will set the permissions to 755 for directories, and 644 for files.
+
+## Reference
+
+- octal 644: _read and write_ for the owner, _read_ for the group and others users.
+- octal 755: _read, write and execute_ permissions for the owner, and _read and execute_ for the group and others users.