https://gunkies.org/index.php?action=history&feed=atom&title=32v_1m_chmod32v 1m chmod - Revision history2026-05-12T03:07:48ZRevision history for this page on the wikiMediaWiki 1.30.1https://gunkies.org/w/index.php?title=32v_1m_chmod&diff=6939&oldid=prevNeozeed: New page: CHMOD(1) UNIX Programmer's Manual CHMOD(1) == NAME == chmod - change mode == SYNOPSIS == chmod mode file ... == DESCRIPTION == The mode of each n...2009-10-26T13:02:52Z<p>New page: CHMOD(1) UNIX Programmer's Manual CHMOD(1) == NAME == chmod - change mode == SYNOPSIS == chmod mode file ... == DESCRIPTION == The mode of each n...</p>
<p><b>New page</b></p><div>CHMOD(1) UNIX Programmer's Manual CHMOD(1)<br />
<br />
<br />
<br />
== NAME ==<br />
chmod - change mode<br />
<br />
== SYNOPSIS ==<br />
chmod mode file ...<br />
<br />
== DESCRIPTION ==<br />
The mode of each named file is changed according to _m_o_d_e,<br />
which may be absolute or symbolic. An absolute _m_o_d_e is an<br />
octal number constructed from the OR of the following modes:<br />
<br />
4000 set user ID on execution<br />
2000 set group ID on execution<br />
1000 sticky bit, see _c_h_m_o_d(2)<br />
0400 read by owner<br />
0200 write by owner<br />
0100 execute (search in directory) by owner<br />
0070 read, write, execute (search) by group<br />
0007 read, write, execute (search) by others<br />
<br />
A symbolic _m_o_d_e has the form:<br />
<br />
[_w_h_o] _o_p _p_e_r_m_i_s_s_i_o_n [_o_p _p_e_r_m_i_s_s_i_o_n] ...<br />
<br />
The _w_h_o part is a combination of the letters u (for user's<br />
permissions), g (group) and o (other). The letter a stands<br />
for ugo. If _w_h_o is omitted, the default is _a but the setting<br />
of the file creation mask (see umask(2)) is taken into<br />
account.<br />
<br />
_O_p can be + to add _p_e_r_m_i_s_s_i_o_n to the file's mode, - to take<br />
away _p_e_r_m_i_s_s_i_o_n and = to assign _p_e_r_m_i_s_s_i_o_n absolutely (all<br />
other bits will be reset).<br />
<br />
_P_e_r_m_i_s_s_i_o_n is any combination of the letters r (read), w<br />
(write), x (execute), s (set owner or group id) and t (save<br />
text - sticky). Letters u, g or o indicate that _p_e_r_m_i_s_s_i_o_n<br />
is to be taken from the current mode. Omitting _p_e_r_m_i_s_s_i_o_n<br />
is only useful with = to take away all permissions.<br />
<br />
The first example denies write permission to others, the<br />
second makes a file executable:<br />
<br />
chmod o-w file<br />
chmod +x file<br />
<br />
Multiple symbolic modes separated by commas may be given.<br />
Operations are performed in the order specified. The letter<br />
s is only useful with u or g.<br />
<br />
Only the owner of a file (or the super-user) may change its<br />
mode.<br />
<br />
== SEE ALSO ==<br />
[[32v 1m ls|ls(1)]], [[32v 2m chmod|chmod(2)]], [[32v 1m chown|chown (1)]], [[32v 2m stat|stat(2)]], [[32v 2m umask|umask(2)]]<br />
<br />
[[Category:32v man section 1]]</div>Neozeed