CHMOD

̾Á°

½ñ¼°

POSIX ¥ª¥×¥·¥ç¥ó: [-R]

GNU ¥ª¥×¥·¥ç¥ó (´Êά·Á¼°): [-cfvR] [--reference=file] [--help] [--version] [--]  

ÀâÌÀ

¥·¥ó¥Ü¥ë¥â¡¼¥É¤Ç¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¾ì¹ç¤Î°ú¿ô¤Î½ñ¼°¤Ï
`[ugoa...][[+-=][rwxXstugo...]...][,...]' ¤Ç¤¢¤ë¡£

¥·¥ó¥Ü¥ë¥â¡¼¥É¤Ç°ú¿ô¤Ë¥¢¥¯¥»¥¹¸¢¤ÎÊѹ¹¤òÊ£¿ô»ØÄꤹ¤ë¾ì¹ç¤Ë¤Ï¥³¥ó¥Þ¤Ç¶èÀڤ롣 ¥·¥ó¥Ü¥ë¥â¡¼¥É¤Ç¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¤½¤ì¤¾¤ì¤Îɽ¸½¤Ï 0 ¸Ä¤â¤·¤¯¤ÏÊ£¿ô¤Îʸ»ú `ugoa' ¤Ç»Ï¤Þ¤ë; ¤³¤ì¤é¤¬¥Õ¥¡¥¤¥ë¤ËÂФ¹¤ë¤É¤Î¥æ¡¼¥¶¡¼¤Î¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¤«¤ò·è¤á¤ë: ¥Õ¥¡¥¤¥ë¤Î½êÍ­¼Ô (u)¡¢ ¥Õ¥¡¥¤¥ë¤ÈƱ¤¸¥°¥ë¡¼¥×¤Ë°¤·¤Æ¤¤¤ë¤¬½êÍ­¼Ô¤Ç¤Ï¤Ê¤¤ (ÌõÃí: °Ê¸å¥°¥ë¡¼¥×¤Èɽµ­) (g)¡¢ ½êÍ­¼Ô¤Ç¤â¤Ê¤¯¡¢¤½¤Î¥Õ¥¡¥¤¥ë¤ÈƱ¤¸¥°¥ë¡¼¥×¤Ë¤â°¤·¤Æ¤¤¤Ê¤¤ (ÌõÃí: °Ê¸å¤½¤Î¾¤Èɽµ­) (o)¡¢ ¤â¤·¤¯¤ÏÁ´¥æ¡¼¥¶¡¼ (a) ¤òɽ¤·¤Æ¤¤¤ë¡£¤Ä¤Þ¤ê `a' ¤Ï `ugo' ¤ÈƱ¤¸¤Ç¤¢¤ë¡£ ¤â¤·¤³¤ì¤é¤Î¤¤¤º¤ì¤â»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢`a' ¤¬»ØÄꤵ¤ì¤¿¤Î¤ÈƱ¤¸·ë²Ì¤È¤Ê¤ë¤¬¡¢umask ¤ËÀßÄꤵ¤ì¤¿ ¥Ó¥Ã¥È°ÌÃÖ¤ÏÊѲ½¤·¤Ê¤¤¡£

`+' ±é»»»Ò¤Ï³Æ¡¹¤Î¥Õ¥¡¥¤¥ë¤Î¸½¾õ¤Î¥¢¥¯¥»¥¹¸¢¤Ë¡¢ÁªÂò¤·¤¿¥¢¥¯¥»¥¹¸¢¤ò²Ã¤¨¤ë; `-' ¤Ïºï½ü¤¹¤ë; ¤½¤·¤Æ `=' ¤Ï»ØÄꤷ¤¿¥¢¥¯¥»¥¹¸¢¤À¤±¤¬¤½¤Î¥Õ¥¡¥¤¥ë¤Î¥¢¥¯¥»¥¹¸¢¤È¤Ê¤ë¡£

ʸ»ú `rwxXstugo' ¤Ï±Æ¶Á¤òÍ¿¤¨¤ë¥æ¡¼¥¶¡¼¤ËÂФ¹¤ë¿·¤·¤¤¥¢¥¯¥»¥¹¸¢¤òÁªÂò¤¹¤ë: Æɼè¤ê (r)¡¢ ½ñ¤­¹þ¤ß (w)¡¢¼Â¹Ô (¤Þ¤¿¤Ï¥Ç¥£¥ì¥¯¥È¥ê¤ËÂФ¹¤ë¥¢¥¯¥»¥¹) (x)¡¢¥Õ¥¡¥¤¥ë¤¬¥Ç¥£¥ì¥¯¥È¥ê¤«¤â¤·¤¯¤Ï ¤¢¤ë¥æ¡¼¥¶¡¼¤Ë¤¿¤¤¤·¤Æ¤¹¤Ç¤Ë¼Â¹Ô¥¢¥¯¥»¥¹¸¢¤¬ÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¤Î¤ß¼Â¹Ô (X)¡¢¼Â¹Ô»þ¤Ë¥æ¡¼¥¶¡¼ ¤â¤·¤¯¤Ï¥°¥ë¡¼¥× ID¤òÀßÄꤹ¤ë (s)¡¢sticky bit (t)¡¢¤½¤Î¥Õ¥¡¥¤¥ë¤Î½êÍ­¼Ô¤Ç¤Î¸½ºß¤Î¥¢¥¯¥»¥¹¸¢ ¤Ï (u)¡¢¤½¤Î¥Õ¥¡¥¤¥ë¤Î¥°¥ë¡¼¥×¤Ç¤Î¸½ºß¤Î¥¢¥¯¥»¥¹¸¢¤Ï (g)¡¢¤½¤Î¥Õ¥¡¥¤¥ë¤Î¤½¤Î¾¤Î¥æ¡¼¥¶¡¼¤Ç¤Î¸½ºß ¤Î¥¢¥¯¥»¥¹¸¢¤Ï (o) ¤Çɽ¤µ¤ì¤ë¡£ (½¾¤Ã¤Æ¡¢`chmod g-s file' ¤Ï set-group-ID (sgid) ¥Ó¥Ã¥È¤òºï½ü¤¹¤ë¡£ `chmod ug+s file' ¤Ï suid ¤½¤·¤Æ sgid ¥Ó¥Ã¥È¤ÎξÊý¤òÀßÄꤹ¤ë¤¬¡¢ `chmod o+s file' ¤Ï²¿¤â¤·¤Ê¤¤¡£)

POSIX ¤Ç¤Ï `sticky bit' ¤Ë¤Ä¤¤¤Æµ­½Ò¤·¤Æ¤¤¤Ê¤¤¡£ ¤½¤Î̾Á°¤ÏËÜÍè¤Î°ÕÌ£¤«¤éÍè¤Æ¤¤¤ë: ¥×¥í¥°¥é¥à¥³¡¼¥É¤ò¥¹¥ï¥Ã¥×¾å¤Ë°Ý»ý¤¹¤ë¡£ ºÇ¶á¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥ê¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢¥Õ¥¡¥¤¥ë¤Î½êÍ­¼Ô¤È¥Ç¥£¥ì¥¯¥È¥ê¤Î½êÍ­¼Ô¤À¤±¤¬ ¤½¤Î¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¥Õ¥¡¥¤¥ë¤òºï½ü¤Ç¤­¤ë¤³¤È¤ò°ÕÌ£¤¹¤ë¡£ (Á´¥æ¡¼¥¶¡¼¤¬½ñ¤­¹þ¤ß¥¢¥¯¥»¥¹¸¢¤ò»ý¤Ä /tmp ¤Î¤è¤¦¤Ê¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤³¤ì¤Ï¤´¤¯ÉáÄ̤˻Ȥï¤ì¤Æ¤¤¤ë¡£)

chmod ¥³¥Þ¥ó¥É¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Î¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¤³¤È¤Ï·è¤·¤Æ¤Ê¤¤¡£¤Ê¤¼¤Ê¤é¡¢ chmod ¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Î¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¤«¤é¤Ç¤¢¤ë¡£ ¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Î¥¢¥¯¥»¥¹¸¢¤Ï·è¤·¤Æ»È¤ï¤ì¤ë¤³¤È¤¬¤Ê¤¤¤¿¤á¡¢¤³¤Î¤³¤È¤ÏÌäÂê¤Ç¤Ï¤Ê¤¤¡£ ¤·¤«¤·¡¢ chmod ¥³¥Þ¥ó¥É¤Ï°ú¿ô¤Ë¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¡¢³Æ¡¹¤Ë¤Ä¤¤¤Æ¤½¤ì¤¬»Ø¤·¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¤Î ¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤¹¤ë¡£¤½¤ì¤ËÂФ·¤Æ¡¢ chmod ¥³¥Þ¥ó¥É¤ÏºÆµ¢Åª¤Ë¥Ç¥£¥ì¥¯¥È¥ê¤ò°ÜÆ°¤·¤Ê¤¬¤é½èÍý¤·¤Æ¤¤¤ë»þ¤Ë¸«¤Ä¤±¤¿¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯ ¤Ï̵»ë¤¹¤ë¡£  

POSIX ¥ª¥×¥·¥ç¥ó

-R

¥Ç¥£¥ì¥¯¥È¥ê¤ä¤½¤³¤Ë´Þ¤Þ¤ì¤ë¤â¤Î¤Î¥¢¥¯¥»¥¹¸¢¤òºÆµ¢Åª¤ËÊѹ¹¤¹¤ë¡£

GNU ¥ª¥×¥·¥ç¥ó

-c, --changes

¼ÂºÝ¤Ë¥¢¥¯¥»¥¹¸¢¤ÎÊѹ¹¤¬¤¢¤Ã¤¿ file ¤½¤ì¤¾¤ì¤Ë¤Ä¤¤¤Æ¤ÎÆ°ºî¤ò¾ÜºÙ¤Ëɽ¼¨¤¹¤ë¡£

-f, --silent, --quiet

¥¢¥¯¥»¥¹¸¢¤òÊѹ¹¤Ç¤­¤Ê¤«¤Ã¤¿¥Õ¥¡¥¤¥ë¤Ë¤Ä¤¤¤Æ¤Î¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤ò½ÐÎϤ·¤Ê¤¤¡£

-v, --verbose

Á´¤Æ¤Î file ¤Ë¤Ä¤¤¤ÆÊѹ¹¤·¤¿¡¢¤â¤·¤¯¤Ï¤·¤Ê¤«¤Ã¤¿¤È¤¤¤¦Æ°ºî¤ò¾ÜºÙ¤Ëɽ¼¨¤¹¤ë¡£

-R, --recursive

¥Ç¥£¥ì¥¯¥È¥ê¤ä¤½¤³¤Ë´Þ¤Þ¤ì¤ë¤â¤Î¤Î¥¢¥¯¥»¥¹¸¢¤òºÆµ¢Åª¤ËÊѹ¹¤¹¤ë¡£

--reference=file

ÌÀ¼¨Åª¤Ë mode ¤ò»Ø¼¨¤¹¤ëÂå¤ï¤ê¤Ë¡¢»²¾ÈÍѤ˻ØÄꤷ¤¿ file ¤Î¥°¥ë¡¼¥×¤ò»È¤¦¡£

GNU ɸ½à¥ª¥×¥·¥ç¥ó

--help

ɸ½à½ÐÎϤ˻ÈÍÑÊýË¡¤Î¥á¥Ã¥»¡¼¥¸¤ò½ÐÎϤ·¤ÆÀµ¾ï½ªÎ»¤¹¤ë¡£

--version

ɸ½à½ÐÎϤ˥С¼¥¸¥ç¥ó¾ðÊó¤ò½ÐÎϤ·¤ÆÀµ¾ï½ªÎ»¤¹¤ë¡£

--

¥ª¥×¥·¥ç¥ó¥ê¥¹¥È¤ò½ªÎ»¤¹¤ë¡£

¿ôÃͥ⡼¥É

¿ôÃͥ⡼¥É¤Ë¤è¤ë»ØÄê¤Ï¡¢Âбþ¤¹¤ë¥·¥ó¥Ü¥ë¥â¡¼¥É¤Ç»ØÄꤹ¤ë¤è¤êÂçÄñ¤Î¾ì¹çû¤¯¤¹¤à¡£¤·¤«¤· ¥Õ¥¡¥¤¥ë¤Î¸½¾õ¤Î¥¢¥¯¥»¥¹¸¢¤ò¹Íθ¤·¤¿»ØÄ꤬¤Ç¤­¤Ê¤¤¤È¤¤¤¦À©¸Â¤¬¤¢¤ë; ÀäÂÐÃÍ»ØÄꤷ¤«¤Ç¤­¤Ê¤¤¡£

ºÇ½é¤Î·å¤Ç¤Ï¥æ¡¼¥¶¡¼ ID ¤ÎÀßÄê (4)¡¢¥°¥ë¡¼¥× ID ¤ÎÀßÄê (2)¡¢¤ª¤è¤Ó¥×¥í¥°¥é¥à¥³¡¼¥É¤Î¥¹¥ï¥Ã¥×¤Ç¤Î °Ý»ý (1) ¤È¤¤¤Ã¤¿Â°À­¤ò»ØÄꤹ¤ë¡£2·åÌܤǤϥե¡¥¤¥ë¤ò½êÍ­¤¹¤ë¥æ¡¼¥¶¡¼¤Î¥¢¥¯¥»¥¹¸¢¤ò»ØÄꤹ¤ë: Æɤ߼è¤ê (4)¡¢ ½ñ¤­¹þ¤ß (2)¡¢¤½¤·¤Æ¼Â¹Ô (1); 3·åÌܤǤϥե¡¥¤¥ë¤ÈƱ¤¸¥°¥ë¡¼¥×¤Î¥æ¡¼¥¶¡¼¤ËÂФ¹¤ë¥¢¥¯¥»¥¹¸¢ ¤òƱ¤¸ÃͤǻØÄꤹ¤ë; ¤½¤·¤Æ4·åÌܤǤϤ½¤Î¾¤Î¥æ¡¼¥¶¡¼¤ËÂФ¹¤ë¥¢¥¯¥»¥¹¸¢¤òƱ¤¸ÃͤǻØÄꤹ¤ë¡£ ¾Êά¤µ¤ì¤¿¿ô»ú¤Ï 0 ¤È¤·¤Æ°·¤ï¤ì¤ë¡£

ÆâÉôŪ¤Ë½êÍ­¼Ô¡¢¥°¥ë¡¼¥×¡¢¤½¤Î¾¤ËÍ¿¤¨¤ë¥¢¥¯¥»¥¹¸¢¤Ï¡¢¤½¤ì¤¾¤ì1·å¤Î8¿Ê¿ô¤Çɽ¸½¤µ¤ì¤ë3¥Ó¥Ã¥È¤Ç Êݸ¤µ¤ì¤Æ¤¤¤ë¡£3¼ïÎà¤ÎÆÃÊ̤ʥ¢¥¯¥»¥¹¸¢¤â¤½¤ì¤¾¤ì1¥Ó¥Ã¥È¤ÇÊݸ¤µ¤ì¡¢Â¾¤Î8¿Ê¿ô¤ÈƱ¤¸¤è¤¦¤Ë¤Þ¤È¤á¤Æ ɽ¸½¤µ¤ì¤ë¡£¤³¤³¤Ç 16 ¥Ó¥Ã¥ÈÀ°¿ô¤Ç¤ÎÇÛÃÖ¤ò¤â¤Ã¤È¤âÄ㤤ÃͤΥӥåȤ«¤é¼¨¤¹¡£

¤½¤Î¾

1 ¼Â¹Ô
2 ½ñ¤­¹þ¤ß
4 Æɤ߹þ¤ß

¥°¥ë¡¼¥×

10 ¼Â¹Ô
20 ½ñ¤­¹þ¤ß
40 Æɤ߹þ¤ß

½êÍ­¼Ô

100 ¼Â¹Ô
200 ½ñ¤­¹þ¤ß
400 Æɤ߹þ¤ß

ÆÃÊ̤ʥ¢¥¯¥»¥¹¸¢

1000 ¥×¥í¥°¥é¥à¥³¡¼¥É¤ò¥¹¥ï¥Ã¥×¤Ë°Ý»ý
2000 ¼Â¹Ô»þ¤Ë¥°¥ë¡¼¥× ID ¤òÀßÄê
4000 ¼Â¹Ô»þ¤Ë¥æ¡¼¥¶¡¼ ID ¤òÀßÄê

´Ä¶­ÊÑ¿ô

½àµò

Èóɸ½à¥â¡¼¥É

Ãí°Õ

Index

̾Á°

½ñ¼°

ÀâÌÀ

POSIX ¥ª¥×¥·¥ç¥ó

GNU ¥ª¥×¥·¥ç¥ó

GNU ɸ½à¥ª¥×¥·¥ç¥ó

¿ôÃͥ⡼¥É

´Ä¶­ÊÑ¿ô

½àµò

Èóɸ½à¥â¡¼¥É

Ãí°Õ