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Linux¤Ç¤Ï¡¢Â¾¤Î¥æ¡¼¥¶¤Ë¥Õ¥¡¥¤¡¦Eò¸¡¦»¤Ê¤¤¤è¤¦¤Ë¤¹¤¡¦E³¤È¤¡¦Ç¤¤Þ¤¹¡¡¦½¤¡¦Eò¹Ô¤¦¤Ë¤¡¦hmod¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æ¥Õ¥¡¥¤¡¦Eθ¡¦Â¤òÊѹ¹¤·¤Þ¤¹¡¡¦³¤³¤Ç¤¤¤¦Â¾¤Î¥æ¡¼¥¶¤È¤Ï¡¢¥Õ¥¡¥¤¥¡¦Eν¡¦E¼Ô¥°¥¡¦E¼¥×¤Ë½¡¦E°¤·¤Æ¤¡¦E桼¥¶¤È¡¢¤½¤¡¦Eʳ°¤Î¥æ¡¼¥¶¤Ë¤Ê¤ê¤Þ¤¹¡¡¦/p>
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[root@Dolphin root]# echo "test" > /tmp/read_only
[root@Dolphin root]# ls -l /tmp/read_only
-rw-r--r-- 1 root root 5 Mar 5 01:23 /tmp/read_only
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[root@Dolphin root]# chmod 600 /tmp/read_only
[root@Dolphin root]# ls -l /tmp/read_only
-rw------- 1 root root 5 Mar 5 01:23 /tmp/read_only
¢¬chmod¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æread_only¥Õ¥¡¥¤¡¦Eθ¡¦Â¤¡¦E00¤ËÊѹ¹¤·¤Þ¤¹¡£
[root@Dolphin root]# cat /tmp/read_only
test
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[root@Dolphin root]# su - pakira
[pakira@Dolphin pakira]$ cat /tmp/read_only
cat: /tmp/read_only: µö²Ä¤¬¤¢¤ê¤Þ¤»¡¦Ebr />
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Linux¤Ç¤Ï¡¢Â¾¤Î¥æ¡¼¥¶¤Ë¥Õ¥¡¥¤¡¦Eò¸¡¦»¤Ê¤¤¤è¤¦¤Ë¤¹¤¡¦E³¤È¤¡¦Ç¤¤Þ¤¹¡¡¦½¤¡¦Eò¹Ô¤¦¤Ë¤¡¦hmod¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æ¥Õ¥¡¥¤¡¦Eθ¡¦Â¤òÊѹ¹¤·¤Þ¤¹¡¡¦³¤³¤Ç¤¤¤¦Â¾¤Î¥æ¡¼¥¶¤È¤Ï¡¢¥Õ¥¡¥¤¥¡¦Eν¡¦E¼Ô¥°¥¡¦E¼¥×¤Ë½¡¦E°¤·¤Æ¤¡¦E桼¥¶¤È¡¢¤½¤¡¦Eʳ°¤Î¥æ¡¼¥¶¤Ë¤Ê¤ê¤Þ¤¹¡¡¦/p>
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[root@Dolphin root]# echo "test" > /tmp/read_only
[root@Dolphin root]# ls -l /tmp/read_only
-rw-r--r-- 1 root root 5 Mar 5 01:23 /tmp/read_only
¢¬test¤È½ñ¤«¡¦E¿¥Õ¥¡¥¤¥¡¦E¡¦Etmp¥Ç¥£¡¦E¡¦È¥ê¤ËºûÜ¡¦·¤Þ¤¹¡¡¦/em>
[root@Dolphin root]# chmod 600 /tmp/read_only
[root@Dolphin root]# ls -l /tmp/read_only
-rw------- 1 root root 5 Mar 5 01:23 /tmp/read_only
¢¬chmod¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æread_only¥Õ¥¡¥¤¡¦Eθ¡¦Â¤¡¦E00¤ËÊѹ¹¤·¤Þ¤¹¡£
[root@Dolphin root]# cat /tmp/read_only
test
¢¬cat¥³¥Þ¥ó¥É¤ò»ÈÍѤ·¤Æ¡¢read_only¥Õ¥¡¥¤¡¦EÎÆâÍƤòɽ¼¨¤·¤Þ¤¹¡¡¦/em>
[root@Dolphin root]# su - pakira
[pakira@Dolphin pakira]$ cat /tmp/read_only
cat: /tmp/read_only: µö²Ä¤¬¤¢¤ê¤Þ¤»¡¦Ebr />
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