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Minix/CD-ROM-2.0/MINIX/MANUALS/CAT1/CHMOD.1

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+CHMOD(1)                  Minix Programmer's Manual                   CHMOD(1)
+
+
+NAME
+     chmod - change access mode for files
+
+SYNOPSIS
+     chmod [-R] mode file ...
+
+OPTIONS
+
+     -R   Change hierarchies recursively
+
+EXAMPLES
+
+     chmod 755 file      # Owner: rwx Group: r-x Others: r-x
+
+     chmod +x file1 file2
+                         # Make file1 and file2 executable
+
+     chmod a-w file      # Make file read only
+
+     chmod u+s file      # Turn on SETUID for file
+
+     chmod -R o+w dir    # Allow writing for all files in dir
+
+DESCRIPTION
+
+     The given mode is applied to each file in the file list. If the  -R  flag
+     is  present,  the files in a directory will be changed as well.  The mode
+     can be either absolute or symbolic. Absolute modes are given as an  octal
+     number  that  represents  the new file mode. The mode bits are defined as
+     follows:
+
+        4000    Set effective user id on execution to file's owner id
+        2000    Set effective group id on execution to file's group id
+        0400    file is readable by the owner of the file
+        0200    writeable by owner
+        0100    executable by owner
+        0070    same as above, for other users in the same group
+        0007    same as above, for all other users
+
+     Symbolic modes modify the current file mode in a specified way. The  form
+     is:
+
+        [who] op permissions { op permissions ...} {, [who] op ... }
+
+     The possibilities for who are u, g, o, and a, standing for  user,  group,
+     other  and  all,  respectively.  If who is omitted, a is assumed, but the
+     current umask is used. The op can be +, -, or =;  + turns  on  the  given
+     permissions, - turns them off; = sets the permissions exclusively for the
+     given who. For example g=x sets the group permissions to --x.
+
+
+
+                                                                             1
+
+
+
+CHMOD(1)                  Minix Programmer's Manual                   CHMOD(1)
+
+
+     The possible permissions are r, w, x; which stand for  read,  write,  and
+     execute;   s  turns on the set effective user/group id bits. s only makes
+     sense with u and g; o+s is harmless.
+
+SEE ALSO
+     ls(1), chmod(2).
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+                                                                             2
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