(coreutils.info.gz) Symbolic Modes

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 27.2 Symbolic Modes
 ===================
 
 "Symbolic modes" represent changes to files' mode bits as operations on
 single-character symbols.  They allow you to modify either all or
 selected parts of files' mode bits, optionally based on their previous
 values, and perhaps on the current `umask' as well ( Umask and
 Protection).
 
    The format of symbolic modes is:
 
      [ugoa...][+-=]PERMS...[,...]
 
 where PERMS is either zero or more letters from the set `rwxXst', or a
 single letter from the set `ugo'.
 
    The following sections describe the operators and other details of
 symbolic modes.
 

Menu

 
* Setting Permissions          Basic operations on permissions.
* Copying Permissions          Copying existing permissions.
* Changing Special Mode Bits   Special mode bits.
* Conditional Executability    Conditionally affecting executability.
* Multiple Changes             Making multiple changes.
* Umask and Protection              The effect of the umask.
 

Info Catalog

(coreutils.info.gz) Mode Structure

(coreutils.info.gz) File permissions

(coreutils.info.gz) Numeric Modes