{"id":2284,"date":"2011-01-17T10:57:52","date_gmt":"2011-01-17T02:57:52","guid":{"rendered":"http:\/\/edsionte.com\/techblog\/?p=2284"},"modified":"2011-01-17T16:18:05","modified_gmt":"2011-01-17T08:18:05","slug":"%e6%96%87%e4%bb%b6%e8%ae%bf%e9%97%ae%e6%9d%83%e9%99%90","status":"publish","type":"post","link":"http:\/\/edsionte.com\/techblog\/archives\/2284","title":{"rendered":"\u76ee\u5f55\u6587\u4ef6\u7684\u8bbf\u95ee\u6743\u9650"},"content":{"rendered":"

\u76ee\u5f55\u7684\u8bbf\u95ee\u6743\u9650<\/h4>\n

\u5728linux\u5f53\u4e2d\uff0c\u6587\u4ef6\u5206\u4e3a\u591a\u79cd\u7c7b\u578b\u3002\u6bd4\u5982\u666e\u901a\u6587\u4ef6\uff0c\u76ee\u5f55\u6587\u4ef6\u548c\u7b26\u53f7\u94fe\u63a5\u6587\u4ef6\u7b49\u3002\u6211\u4eec\u901a\u5e38\u6240\u8bf4\u7684\u201c\u6587\u4ef6\u201d\u5219\u9ed8\u8ba4\u4e3a\u666e\u901a\u6587\u4ef6\uff0c\u4e5f\u5c31\u662f\u6307\u6587\u672c\u6587\u4ef6\u548c\u4e8c\u8fdb\u5236\u6587\u4ef6(\u5173\u4e8e\u6587\u4ef6\u7684\u5206\u7c7b\u63cf\u8ff0\uff0c\u53ef\u53c2\u770b\u8fd9\u91cc<\/a>)\u3002<\/p>\n

\u6bcf\u4e00\u7c7b\u6587\u4ef6\u8fd8\u6709\u76f8\u5e94\u7684\u8bbf\u95ee\u6743\u9650\u3002\u5bf9\u4e8e\u4e00\u4e2a\u6587\u4ef6\u800c\u8a00\uff0c\u6240\u8c13\u7684\u8bbf\u95ee\u6743\u9650\u662f\u6307\u6587\u4ef6\u8bbf\u95ee\u8005\u662f\u5426\u5bf9\u8be5\u6587\u4ef6\u5177\u6709\u8bfb\u3001\u5199\u6216\u6267\u884c\u7684\u6743\u5229\u3002\u53e6\u5916\uff0clinux\u662f\u4e00\u4e2a\u591a\u7528\u6237\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5b83\u5c06\u7528\u6237\u5206\u4e3a\u4e09\u79cd\uff1a\u7528\u6237\uff08u\uff0c\u5373\u6587\u4ef6\u6240\u6709\u8005\uff09\uff0c\u7528\u6237\u6240\u5728\u7ec4\uff08g\uff09\uff0c\u5176\u4ed6\u7528\u6237\uff08o\uff09\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8e\u4e0d\u540c\u8eab\u4efd\u7684\u7528\u6237\uff0c\u4e5f\u5c31\u5e94\u5f53\u5bf9\u4e00\u4e2a\u6587\u4ef6\u6709\u4e0d\u540c\u7684\u8bbf\u95ee\u6743\u9650\u3002\u6240\u4ee5\uff0c\u6bcf\u4e2a\u6587\u4ef6\u67099\u4e2a\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n

\u5bf9\u4e8e\u76ee\u5f55\u6587\u4ef6\u7684\u6743\u9650\uff0c\u4ed6\u548c\u666e\u901a\u6587\u4ef6\u7a0d\u6709\u4e0d\u540c\uff1b<\/p>\n

\u8bfb\uff1a\u53ef\u4ee5\u8bfb\u53d6\u8be5\u76ee\u5f55\uff0c\u4ece\u4e2d\u83b7\u5f97\u8be5\u76ee\u5f55\u4e2d\u6240\u6709\u6587\u4ef6\u540d\uff0c\u4f46\u4e0d\u80fd\u8bfb\u53d6\u5230\u6bcf\u4e2a\u6587\u4ef6\u7684\u72b6\u6001\uff1b
\n\u6267\u884c\uff1a\u53ef\u4ee5\u5bf9\u8be5\u76ee\u5f55\u8fdb\u884c\u641c\u7d22\uff0c\u4e5f\u5c31\u662f\u901a\u8fc7\u8be5\u76ee\u5f55\u53ef\u4ee5\u641c\u7d22\u5176\u5185\u7684\u7279\u5b9a\u6587\u4ef6\u540d\uff1b
\n\u5199\uff1a\u53ef\u4ee5\u5728\u8be5\u76ee\u5f55\u4e0b\u65b0\u5efa\u6216\u5220\u9664\u6587\u4ef6\uff0c\u4f46\u662f\u9996\u5148\u5fc5\u987b\u5bf9\u8be5\u76ee\u5f55\u62e5\u6709\u6267\u884c\u6743\u9650\u3002\u5982\u679c\u8be5\u76ee\u5f55\u6ca1\u6709\u6267\u884c\u6743\u9650\u5c31\u4e0d\u80fd\u5bf9\u8be5\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u8fdb\u884c\u641c\u7d22\uff0c\u65b0\u5efa\u6216\u5220\u9664\u6587\u4ef6\u4e5f\u5c31\u65e0\u4ece\u8c08\u8d77\uff1b<\/p>\n

\u6d4b\u8bd5<\/h4>\n

\u5bf9\u4e8e\u76ee\u5f55\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4ece\u6587\u5b57\u63cf\u8ff0\u7684\u89d2\u5ea6\u5e76\u4e0d\u80fd\u7406\u89e3\u7684\u5f88\u6e05\u695a\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u4e0d\u65ad\u7684\u6d4b\u8bd5\u624d\u80fd\u7406\u89e3\u8fd9\u4e9b\u8bbf\u95ee\u6743\u9650\u5bf9\u76ee\u5f55\u7684\u4f5c\u7528\u6548\u679c\u3002\u6211\u4eec\u5047\u8bbe\u5728edsionte\u4e3b\u76ee\u5f55\u4e0b\u6709\u4e00\u4e2adirtest\u76ee\u5f55\uff0c\u5176\u57fa\u672c\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n

edsionte@edsionte-desktop:~$ ls -ld dirtest\/\r\ndrwxr-xr-x 4 edsionte edsionte 4096 2011-01-17 11:06 dirtest\/\r\nedsionte@edsionte-desktop:~$ ls -l dirtest\/\r\n\u603b\u7528\u91cf 16\r\ndrwxr-xr-x 3 edsionte edsionte 4096 2011-01-15 16:10 cdev\r\n-rw-r--r-- 1 edsionte edsionte  975 2010-10-17 22:06 pms.c\r\ndrwxr-xr-x 2 edsionte edsionte 4096 2011-01-13 20:49 shell\r\n-rw-r--r-- 1 edsionte edsionte   19 2011-01-13 21:08 test.c<\/pre>\n
\u63a5\u4e0b\u6765\u7684\u6d4b\u8bd5\u90fd\u662f\u4ee5edsionte\u7528\u6237\u8eab\u4efd\u5bf9\u8fd9\u4e2a\u76ee\u5f55\u8fdb\u884c\u5404\u79cd\u547d\u4ee4\u6d4b\u8bd5\u7684\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n
1.\u901a\u8fc7ls dirtest\u547d\u4ee4\uff0c\u53ef\u53c2\u770b\u8be5\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u540d\u3002\u56e0\u4e3a\u8fd9\u4e2a\u76ee\u5f55\u5177\u6709\u8bfb\u6743\u9650\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ ls dirtest\/\r\ncdev  pms.c  shell  test.c<\/pre>\n
2.\u5148\u4f7f\u5f97dirtest\u6ca1\u6709\u6267\u884c\uff0c\u518d\u6267\u884cls\u547d\u4ee4\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u867d\u7136\u53ef\u4ee5\u8bfb\u5230\u6bcf\u4e2a\u6587\u4ef6\u540d\uff0c\u4f46\u662f\u6bcf\u4e2a\u6587\u4ef6\u7684\u5c5e\u6027\u786e\u65e0\u6cd5\u83b7\u5f97\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ chmod a-x dirtest\/\r\nedsionte@edsionte-desktop:~$ ls dirtest\/ -l\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/shell: \u6743\u9650\u4e0d\u591f\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/test.c: \u6743\u9650\u4e0d\u591f\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/pms.c: \u6743\u9650\u4e0d\u591f\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/cdev: \u6743\u9650\u4e0d\u591f\r\n\u603b\u7528\u91cf 0\r\nd????????? ? ? ? ?                ? cdev\r\n-????????? ? ? ? ?                ? pms.c\r\nd????????? ? ? ? ?                ? shell\r\n-????????? ? ? ? ?                ? test.c<\/pre>\n
3.\u7531\u4e8e\u6ca1\u6709\u6267\u884c\u6743\u9650\uff0c\u65e0\u6cd5\u641c\u7d22\u5224\u65addirtest\u76ee\u5f55\u4e0b\u662f\u5426\u5df2\u5b58\u5728newfile.c\u6587\u4ef6\uff0c\u56e0\u6b64\u65e0\u6cd5\u5b8c\u6210touch\u547d\u4ee4\uff0c\u5373\u4fbf\u8be5\u76ee\u5f55\u5177\u6709\u5199\u6743\u9650\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ ls -ld dirtest\/\r\ndrw-r--r-- 4 edsionte edsionte 4096 2011-01-17 11:06 dirtest\/\r\nedsionte@edsionte-desktop:~$ touch dirtest\/newfile.c\r\ntouch: \u65e0\u6cd5\u521b\u5efa\"dirtest\/newfile.c\": \u6743\u9650\u4e0d\u591f<\/pre>\n
\u5bf9\u4e8e\u76ee\u5f55\u6587\u4ef6\uff0c\u4e5f\u662f\u5982\u6b64\uff1a<\/p>\n
edsionte@edsionte-desktop:~$ chmod a-x dirtest\/\r\nedsionte@edsionte-desktop:~$ mkdir .\/dirtest\/newdir\r\nmkdir: \u65e0\u6cd5\u521b\u5efa\u76ee\u5f55\".\/dirtest\/newdir\": \u6743\u9650\u4e0d\u591f<\/pre>\n
4.\u5bf9\u8be5\u76ee\u5f55\u52a0\u4e0a\u6267\u884c\u6743\u9650\u540e\uff0c2\u548c3\u4e2d\u6240\u9047\u5230\u7684\u95ee\u9898\u90fd\u53ef\u4ee5\u89e3\u51b3\uff1a<\/p>\n
edsionte@edsionte-desktop:~$ chmod a+x dirtest\/\r\nedsionte@edsionte-desktop:~$ touch dirtest\/newfile.c\r\nedsionte@edsionte-desktop:~$ ls -l dirtest\/\r\n\u603b\u7528\u91cf 16\r\ndrwxr-xr-x 3 edsionte edsionte 4096 2011-01-15 16:10 cdev\r\n-rw-r--r-- 1 edsionte edsionte    0 2011-01-17 11:36 newfile.c\r\n-rw-r--r-- 1 edsionte edsionte  975 2010-10-17 22:06 pms.c\r\ndrwxr-xr-x 2 edsionte edsionte 4096 2011-01-13 20:49 shell\r\n-rw-r--r-- 1 edsionte edsionte   19 2011-01-13 21:08 test.c<\/pre>\n
5.\u7ee7\u7eed\u4f7f\u5f97dirtest\u6ca1\u6709\u6267\u884c\u6743\u9650\uff0c\u7531\u4e8e\u4e0d\u80fd\u8bfb\u53d6dirtest\u4e0b\u7684\u76ee\u5f55cdev\uff0c\u4e5f\u5c31\u66f4\u4e0d\u80fd\u8bfb\u53d6cdev\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\uff0c\u5373\u4fbfcdev\u5177\u6709\u53ef\u8bfb\u53ef\u6267\u884c\u6743\u9650\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ ls -ld dirtest\/cdev\/\r\ndrwxr-xr-x 3 edsionte edsionte 4096 2011-01-15 16:10 dirtest\/cdev\/\r\nedsionte@edsionte-desktop:~$ chmod a-x dirtest\/\r\nedsionte@edsionte-desktop:~$ ls -ld dirtest\/cdev\/\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/cdev\/: \u6743\u9650\u4e0d\u591f\r\nedsionte@edsionte-desktop:~$ ls -l dirtest\/cdev\/\r\nls: \u65e0\u6cd5\u8bbf\u95eedirtest\/cdev\/: \u6743\u9650\u4e0d\u591f<\/pre>\n
6.\u5982\u679cdirtest\u6709\u6267\u884c\u6743\u9650\u5374\u6ca1\u6709\u5199\u6743\u9650\uff0c\u5219\u4e0d\u80fd\u521b\u5efa\u65b0\u6587\u4ef6\u3002\u8fd9\u4e00\u70b9\u5f88\u597d\u7406\u89e3\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ ls -ld dirtest\/\r\ndr-xr-xr-x 4 edsionte edsionte 4096 2011-01-17 11:36 dirtest\/\r\nedsionte@edsionte-desktop:~$ mkdir .\/dirtest\/newdir\r\nmkdir: \u65e0\u6cd5\u521b\u5efa\u76ee\u5f55\".\/dirtest\/newdir\": \u6743\u9650\u4e0d\u591f<\/pre>\n
7.\u5982\u679cdirtest\u6709\u5199\u6743\u9650\u5374\u6ca1\u6709\u6267\u884c\u6743\u9650\uff0c\u5219\u4e0d\u80fd\u5728\u8be5\u76ee\u5f55\u4e0b\u5220\u9664\u6587\u4ef6\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ chmod a-x dirtest\/\r\nedsionte@edsionte-desktop:~$ ls -ld dirtest\/\r\ndrw-rw-rw- 4 edsionte edsionte 4096 2011-01-17 11:36 dirtest\/\r\nedsionte@edsionte-desktop:~$ rm .\/dirtest\/newfile.c\r\nrm: \u65e0\u6cd5\u5220\u9664\".\/dirtest\/newfile.c\": \u6743\u9650\u4e0d\u591f<\/pre>\n
8.\u5982\u679cdirtest\u76ee\u5f55\u6709\u53ef\u5199\u6743\u9650\u6ca1\u6709\u53ef\u6267\u884c\u6743\u9650\uff0c\u867d\u7136\u53ef\u4ee5\u6253\u5f00\u8be5\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6test.c\uff0c\u4f46\u662f\u5bf9\u5176\u4fee\u6539\u540e\u4e0d\u80fd\u4fdd\u5b58\uff1b<\/p>\n
edsionte@edsionte-desktop:~$ ls dirtest\/\r\ncdev  newfile.c  pms.c  shell  test.c\r\nedsionte@edsionte-desktop:~$ chmod a-x dirtest\/\r\nedsionte@edsionte-desktop:~$ vim .\/dirtest\/test.c<\/pre>\n
9.\u5982\u679c\u8981\u4fee\u6539dirtest\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6test.c\uff0c\u5bf9\u4e8edirtest\u76ee\u5f55\u800c\u8a00\uff0c\u5fc5\u987b\u5177\u5907\u6267\u884c\u6743\u9650\uff1b\u800c\u8be5\u76ee\u5f55\u7684\u5199\u6743\u9650\u5219\u4e0etest.c\u7684\u4fee\u6539\u65e0\u5173\uff1b<\/p>\n
\u901a\u8fc7\u4e0a\u9762\u7684\u6d4b\u8bd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u51fa\u4e0b\u9762\u7684\u7ed3\u8bba\uff1a<\/p>\n
1.\u5bf9\u4e00\u4e2a\u76ee\u5f55\u8fdb\u884c\u8bfb\u64cd\u4f5c\uff0c\u5373\u6307\u8bfb\u8be5\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u540d\uff1b<\/p>\n
2.\u5bf9\u4e00\u4e2a\u76ee\u5f55\u7684\u201c\u5199\u201d\u5305\u62ec\u5728\u8be5\u76ee\u5f55\u4e0b\u5220\u9664\u3001\u65b0\u5efa\u6587\u4ef6\uff1b\u66f4\u91cd\u8981\u7684\u662f\uff0c\u53ea\u6709\u8be5\u76ee\u5f55\u6709\u53ef\u6267\u884c\u6743\u9650\u65f6\uff0c\u5199\u64cd\u4f5c\u624d\u53ef\u4ee5\u8fdb\u884c\uff0c\u5426\u5219\uff0c\u4e0d\u80fd\u83b7\u53d6\u8be5\u76ee\u5f55\u4e0b\u9664\u6587\u4ef6\u540d\u4e4b\u5916\u7684\u4efb\u4f55\u6587\u4ef6\u72b6\u6001\u4fe1\u606f\uff1b<\/p>\n
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