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       #Post#: 258--------------------------------------------------
       chmod permission tutorial
       By: pyinmanathar Date: May 4, 2014, 10:52 am
       ---------------------------------------------------------
       Ref - MPX TEAM
       &#4117;&#4113;&#4121;&#4102;&#4150;&#4143;&#4152;&#4145;&#4155;&
       #4117;&#4140;&#4097;&#4154;&#4100;&#4153;&#4112;&#4140;&#4096;&#
       4145;&#4112;&#4140;&#4151;
       &#4114;&#4142;&#4117;&#4143;&#4141;&#4245;&#4101;&#4153;&#4127;&
       #4140;
       Newbie
       &#4145;&#4112;&#4156;&#4129;&#4112;&#4156;&#4096;&#4153;&#4126;&
       #4140;&#4155;&#4118;&#4101;&#4153;&#4117;&#4139;&#4112;&#4122;&#
       4153;&#4097;&#4100;&#4153;&#4119;&#4154;&#4140;&#4152;&#4171;
       &#4126;&#4141;&#4126;&#4145;&#4124;&#4140;&#4096;&#4153;&#4145;&
       #4124;&#4152;&#4112;&#4100;&#4153;&#4155;&#4117;&#4123;&#4112;&#
       4140;&#4102;&#4143;&#4141;&#4145;&#4112;&#4140;&#4151;&#4129;&#4
       121;&#4157;&#4140;&#4152;&#4117;&#4139;&#4097;&#4146;&#4151;&#41
       23;&#4100;&#4153;&#4124;&#4106;&#4153;&#4152;&#4097;&#4156;&#410
       0;&#4153;&#4151;&#4124;&#4234;&#4112;&#4153;&#4145;&#4117;&#4152
       ;&#4222;&#4096;&#4117;&#4139;&#4170;&#4121;&#4157;&#4140;&#4152;
       &#4112;&#4140;&#4096;&#4143;&#4141;&#4160;&#4100;&#4153;&#4155;&
       #4117;&#4100;&#4153;&#4145;&#4117;&#4152;&#4126;&#4156;&#4140;&#
       4152;&#4222;&#4096;&#4117;&#4139;&#4097;&#4100;&#4153;&#4119;&#4
       154;&#4140;&#4152;&#4171;
       &#4096;&#4146;&#4101;&#4124;&#4143;&#4141;&#4096;&#4153;&#4123;&
       #4145;&#4129;&#4140;&#4100;&#4153;
       Android &#4121;&#4157;&#4143;&#4140; FILE
       &#4145;&#4112;&#4156;&#4096;&#4143;&#4141; permission
       &#4145;&#4117;&#4152;&#4112;&#4146;&#4151;&#4129;&#4097;&#4139;
       chmod &#4102;&#4143;&#4141;&#4112;&#4146;&#4151; command
       &#4126;&#4150;&#4143;&#4152;&#4123;&#4117;&#4139;&#4112;&#4122;&
       #4153;
       chmod
       &#4123;&#4146;&#4245;&#4129;&#4123;&#4157;&#4106;&#4153;&#4096;&
       #4145;&#4112;&#4140;&#4151;
       change mode
       &#4155;&#4118;&#4101;&#4153;&#4117;&#4139;&#4112;&#4122;&#4153;&
       #4171;
       &#4129;&#4126;&#4150;&#4143;&#4152;&#4155;&#4117;&#4147;&#4117;&
       #4150;&#4143;&#4096;&#4145;&#4112;&#4140;&#4151;
       -chmod permission file
       &#4155;&#4118;&#4101;&#4153;&#4117;&#4139;&#4112;&#4122;&#4153;
       &#4114;&#4142;&#4145;&#4116;&#4123;&#4140;&#4121;&#4157;&#4140;
       user
       &#4129;&#4121;&#4154;&#4141;&#4147;&#4152;&#4129;&#4101;&#4140;&
       #4152;
       &#4163;
       &#4121;&#4154;&#4141;&#4147;&#4152;&#4096;&#4143;&#4141;&#4126;&
       #4141;&#4113;&#4140;&#4152;&#4123;&#4121;&#4157;&#4140;&#4155;&#
       4118;&#4101;&#4153;&#4117;&#4139;&#4112;&#4122;&#4153;&#4171;&#4
       114;&#4142;
       &#4163;
       &#4121;&#4154;&#4154;&#4141;&#4147;&#4152;&#4096;&#4145;&#4112;&
       #4140;&#4151;
       -user
       -group
       -world
       &#4112;&#4143;&#4141;&#4245;&#4155;&#4118;&#4101;&#4153;&#4117;&
       #4139;&#4112;&#4122;&#4153;
       chmod
       &#4096;&#4143;&#4141;&#4129;&#4155;&#4117;&#4106;&#4153;&#4151;&
       #4129;&#4101;&#4150;&#4143;&#4155;&#4117;&#4116;&#4153;&#4145;&#
       4123;&#4152;&#4155;&#4117;&#4123;&#4121;&#4122;&#4153;&#4102;&#4
       143;&#4141;
       -chmod permission1_permission2_permission3 file name
       &#4117;&#4146;&#4155;&#4118;&#4101;&#4153;&#4117;&#4139;&#4112;&
       #4122;&#4153;
       &#4114;&#4142;&#4145;&#4116;&#4123;&#4140;&#4121;&#4157;&#4140;
       permission1 &#4096; user, permission2 &#4096; group, permission3
       &#4096; world
       &#4129;&#4112;&#4156;&#4096;&#4153;&#4155;&#4118;&#4101;&#4153;&
       #4117;&#4139;&#4112;&#4122;&#4153;
       Permission
       &#4129;&#4121;&#4154;&#4141;&#4147;&#4152;&#4129;&#4101;&#4140;&
       #4152;&#4129;&#4145;&#4116;&#4116;&#4146;&#4245;&#4096;&#4145;&#
       4112;&#4140;&#4151;
       &#4163;
       &#4097;&#4143;&#4123;&#4157;&#4141;&#4117;&#4139;&#4112;&#4122;&
       #4153;
       -read( r )
       -write( w )
       -execute( x )
       &#4112;&#4143;&#4141;&#4245;&#4155;&#4118;&#4101;&#4153;&#4117;&
       #4139;&#4112;&#4122;&#4153;
       &#4133;&#4117;&#4121;&#4140; - chmod -rw--r--r 1.txt
       &#4114;&#4139;&#4096;&#4143;&#4141;&#4123;&#4157;&#4100;&#4153;&
       #4152;&#4155;&#4117;&#4123;&#4121;&#4122;&#4153;&#4102;&#4143;&#
       4141;
       1.txt &#4102;&#4143;&#4141;&#4112;&#4146;&#4151; file
       &#4096;&#4143;&#4141; user &#4096; read and write
       &#4124;&#4143;&#4117;&#4153;&#4097;&#4156;&#4100;&#4153;&#4151;&
       #4123;&#4157;&#4141;&#4117;&#4142;&#4152;
       &#4096;&#4154;&#4116;&#4153;&#4112;&#4146;&#4151; group
       &#4116;&#4146;&#4245; world
       &#4112;&#4143;&#4141;&#4245;&#4096;&#4145;&#4112;&#4140;&#4151;
       read permission
       &#4126;&#4140;&#4123;&#4123;&#4157;&#4141;&#4121;&#4157;&#4140;&
       #4155;&#4118;&#4101;&#4153;&#4117;&#4139;&#4112;&#4122;&#4153;
       permission type &#4145;&#4112;&#4156;&#4096;&#4143;&#4141; octal
       code
       &#4116;&#4146;&#4245;&#4124;&#4106;&#4153;&#4152;&#4145;&#4118;&
       #4140;&#4153;&#4155;&#4117;&#4117;&#4139;&#4112;&#4122;&#4153;
       octal code
       &#4145;&#4112;&#4156;&#4096;&#4145;&#4112;&#4140;&#4151;
       - read ( r ) = 4
       - write ( w ) = 2
       - execute ( x ) = 1
       &#4112;&#4143;&#4141;&#4245;&#4117;&#4146;&#4155;&#4118;&#4101;&
       #4153;&#4117;&#4139;&#4112;&#4122;&#4153;
       &#4145;&#4116;&#4140;&#4096;&#4153;&#4113;&#4117;&#4153;
       &#4133;&#4117;&#4121;&#4140; - chmod 644 1.txt
       &#4114;&#4142;&#4121;&#4157;&#4143;&#4140; 1.txt
       &#4129;&#4112;&#4156;&#4096;&#4153; permission &#4127;&#4140;
       &#4129;&#4145;&#4117;&#4186;&#4096;&#4145;&#4118;&#4140;&#4153;&
       #4155;&#4117;&#4097;&#4146;&#4151;&#4112;&#4146;&#4151;
       - chmod -rw--r--r
       &#4116;&#4146;&#4245;&#4112;&#4144;&#4117;&#4139;&#4112;&#4122;&
       #4153;
       &#4114;&#4142;&#4145;&#4116;&#4123;&#4140;&#4121;&#4157;&#4140;&
       #4145;&#4121;&#4152;&#4101;&#4123;&#4140;&#4123;&#4157;&#4141;&#
       4124;&#4140;&#4117;&#4139;&#4124;&#4141;&#4121;&#4153;&#4151;&#4
       121;&#4122;&#4153;
       -rw &#4129;&#4112;&#4156;&#4096;&#4153; octal code &#4096;
       &#4120;&#4140;&#4155;&#4118;&#4101;&#4153;&#4124;&#4143;&#4141;&
       #4245;
       6
       &#4124;&#4143;&#4141;&#4245;&#4145;&#4123;&#4152;&#4112;&#4140;&
       #4124;&#4146;&#4124;&#4143;&#4141;&#4245;&#4117;&#4139;
       octal code 6
       &#4123;&#4146;&#4245;&#4126;&#4145;&#4120;&#4140;&#4152;&#4112;&
       #4123;&#4140;&#4152;&#4096;&#4145;&#4112;&#4140;&#4151;
       - read ( r ) + write ( w ) = 4 +2 = 6
       &#4155;&#4118;&#4101;&#4153;&#4126;&#4156;&#4140;&#4152;&#4112;&
       #4140;&#4117;&#4139;
       &#4114;&#4142;&#4124;&#4143;&#4141;&#4117;&#4146; read ( r ) +
       write ( w ) + execute ( x ) &#4102;&#4143;&#4141; 4+2+ 1=7
       &#4155;&#4118;&#4101;&#4153;&#4126;&#4156;&#4140;&#4152;&#4117;&
       #4139;&#4112;&#4122;&#4153;
       &#4114;&#4142;&#4145;&#4124;&#4140;&#4096;&#4153;&#4102;&#4143;&
       #4141;&#4126;&#4145;&#4120;&#4140;&#4145;&#4117;&#4139;&#4096;&#
       4153;&#4222;&#4096;&#4121;&#4122;&#4153;&#4113;&#4100;&#4153;&#4
       117;&#4139;&#4112;&#4122;&#4153;
       &#4101;&#4141;&#4112;&#4153;&#4123;&#4157;&#4106;&#4153;&#4124;&
       #4096;&#4153;&#4123;&#4157;&#4106;&#4153;&#4118;&#4112;&#4153;&#
       4145;&#4117;&#4152;&#4112;&#4146;&#4151;&#4129;&#4112;&#4156;&#4
       096;&#4153;&#4145;&#4096;&#4154;&#4152;&#4143;&#4103;&#4144;&#41
       52;&#4117;&#4139;&#4097;&#4100;&#4153;&#4119;&#4154;&#4140;&#415
       2;
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