\u5728\u4f7f\u7528sed\u5bf9\u65e5\u5fd7\u6216\u8005\u5176\u5b83\u6587\u672c\u8fdb\u884cparse\u7684\u8fc7\u7a0b\u5f53\u4e2d\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5f15\u7528\u5916\u90e8\u53d8\u91cf\u7684\u503c\uff0c<\/p>\n\n\n\n
\u6216\u8005\u83b7\u53d6\u4e00\u4e2ashell\u547d\u4ee4\u6267\u884c\u7684\u7ed3\u679c\uff0c\u4ee5\u4fbf\u8fbe\u5230\u66f4\u52a0\u53ef\u89c2\u7684\u8f93\u51fa\u7ed3\u679c\u3002\u8fd9\u91cc\u4ecb\u7ecd\u5982\u4f55\u505a\u5230\u3002<\/p>\n\n\n\n
sed\u4e2d\u4f7f\u7528\u53d8\u91cf\u66ff\u6362<\/strong><\/p>\n\n\n\n 1.sed\u547d\u4ee4\u4f7f\u7528\u53cc\u5f15\u53f7\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528$var\u76f4\u63a5\u5f15\u7528<\/p>\n\n\n\n $ echo|sed “s\/^\/$RANDOM.rmvb_\/g” <\/p>\n\n\n\n 29328.rmvb_ <\/p>\n\n\n\n # \u4e0a\u9762\u4f8b\u5b50\u5f15\u7528\u4e86\u4e00\u4e2a\u73af\u5883\u53d8\u91cf$RANDOM\u7684\u503c<\/p>\n\n\n\n 2.sed\u547d\u4ee4\u4f7f\u7528\u5355\u5f15\u53f7\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528'”$var”‘\u5f15\u7528<\/p>\n\n\n\n \u7c7b\u4f3c\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230<\/p>\n\n\n\n $ echo|sed ‘s\/^\/'”$RANDOM”‘.rmvb_\/g’ <\/p>\n\n\n\n 31338.rmvb_<\/p>\n\n\n\n sed\u4e2d\u6267\u884c\u5916\u90e8\u547d\u4ee4<\/strong><\/p>\n\n\n\n 1.sed\u547d\u4ee4\u4f7f\u7528\u5355\u5f15\u53f7\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528’`shell command`’\u6216\u8005’$(shell command)’\u5f15\u7528\u547d\u4ee4\u6267\u884c\u7684\u7ed3\u679c<\/p>\n\n\n\n \u8fd8\u662f\u4ee5\u4e0a\u9762\u6848\u4f8b\u5206\u6790\uff0c\u4f8b\u5b50\u5982\u4e0b<\/p>\n\n\n\n $ echo|sed ‘s\/^\/’`echo $RANDOM`’.rmvb_\/g’ <\/p>\n\n\n\n 8063.rmvb_ <\/p>\n\n\n\n # \u4e0a\u9762\u7684\u4f8b\u5b50\u4f7f\u7528\u4e86\u65e7\u5f0f\u7684\u547d\u4ee4\u66ff\u6362\uff0c\u4e5f\u53ef\u4ee5\u91c7\u7528\u65b0\u5f0f\u7684\u547d\u4ee4\u66ff\u6362\u65b9\u6cd5\uff0c\u5982\u4e0b<\/p>\n\n\n\n $ echo|sed ‘s\/^\/’$(echo $RANDOM)’.rmvb_\/g’ <\/p>\n\n\n\n 18554.rmvb_ <\/p>\n\n\n\n # \u4e0b\u9762\u4f8b\u5b50\u53d6\u7528\u5f53\u524d\u65e5\u671f\u4f5c\u4e3a\u7ed3\u679c\u7684\u4e00\u90e8\u5206\uff0c\u5982\u4e0b<\/p>\n\n\n\n $ echo|sed ‘s\/^\/’$(date +”%Y%m%d”)’.rmvb_\/g’ <\/p>\n\n\n\n 20120108.rmvb_ <\/p>\n\n\n\n 2.sed\u547d\u4ee4\u4f7f\u7528\u53cc\u5f15\u53f7\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5`shell command`\u6216\u8005$(shell command)\u5f15\u7528\u547d\u4ee4\u6267\u884c\u7684\u7ed3\u679c <\/p>\n\n\n\n \u7c7b\u4f3c\u7684\uff0c\u53cc\u5f15\u53f7\u7684\u60c5\u51b5\uff0c\u5982\u4e0b<\/p>\n\n\n\n $ echo|sed “s\/^\/$(date +”%Y%m%d”).rmvb_\/g” <\/p>\n\n\n\n 20120108.rmvb_ <\/p>\n\n\n\n # \u4f7f\u7528\u73af\u5883\u53d8\u91cf$RANDOM\u4ee5\u53ca\u65e7\u5f0f\u547d\u4ee4\u66ff\u6362\u7684\u4f8b\u5b50<\/p>\n\n\n\n $ echo|sed “s\/^\/`echo $RANDOM`.rmvb_\/g” <\/p>\n\n\n\n 4988.rmvb_<\/p>\n\n\n\n \u603b\u7ed3<\/strong><\/p>\n\n\n\n \u5728sed\u8bed\u53e5\u91cc\u9762\uff0c\u53d8\u91cf\u66ff\u6362\u6216\u8005\u6267\u884cshell\u547d\u4ee4\uff0c\u53cc\u5f15\u53f7\u6bd4\u5355\u5f15\u53f7\u5c11\u7ed5\u4e00\u4e9b\u5f2f\u5b50<\/mark><\/p>\n","protected":false},"excerpt":{"rendered":" \u5728\u4f7f\u7528sed\u5bf9\u65e5\u5fd7\u6216\u8005\u5176\u5b83\u6587\u672c\u8fdb\u884cparse\u7684\u8fc7\u7a0b\u5f53\u4e2d\uff0c\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5f15\u7528\u5916\u90e8\u53d8\u91cf\u7684\u503c\uff0c \u6216\u8005\u83b7\u53d6\u4e00\u4e2ashel … <\/p>\n