{"id":34,"date":"2017-08-18T16:03:57","date_gmt":"2017-08-18T08:03:57","guid":{"rendered":"http:\/\/lst.wting.me\/?p=34"},"modified":"2017-08-19T16:04:06","modified_gmt":"2017-08-19T08:04:06","slug":"%e6%a0%91%e8%8e%93%e6%b4%be%e6%99%ba%e8%83%bd%e5%ae%b6%e5%b1%85%ef%bc%9ashell%e8%84%9a%e6%9c%ac%e4%b9%8b%e9%9f%b3%e4%b9%90%e9%a1%ba%e5%ba%8f%e5%92%8c%e9%9a%8f%e6%9c%ba%e6%92%ad%e6%94%be","status":"publish","type":"post","link":"https:\/\/lst.wting.top\/?p=34","title":{"rendered":"\u6811\u8393\u6d3e\u667a\u80fd\u5bb6\u5c45\uff1ashell\u811a\u672c\u4e4b\u97f3\u4e50\u987a\u5e8f\u548c\u968f\u673a\u64ad\u653e"},"content":{"rendered":"

\u4e4b\u524d\u6211\u4eec\u77e5\u9053\u4e86\u5982\u4f55\u4f7f\u7528shell\u811a\u672c\u6765\u65b0\u589e\u548c\u5220\u9664\u97f3\u4e50\u5217\u8868\uff0c\u4e0b\u9762\u6211\u4eec\u60f3\u8981\u8ba9\u6211\u4eec\u8fd9\u4e2a\u811a\u672c\u987a\u5e8f\u6216\u8005\u968f\u673a\u64ad\u653e\u97f3\u4e50\u5217\u8868\u7684wav\u6587\u4ef6\uff0c\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n

\u9996\u5148\u662f\u987a\u5e8f\u64ad\u653e\uff0c\u6211\u4eec\u53ea\u9700\u8981\u628a\u97f3\u4e50\u5217\u8868\u6309\u987a\u5e8f\u8bfb\u51fa\u7136\u540e\u8c03\u7528aplay\u5373\u53ef\uff0c\u5177\u4f53\u811a\u672c\u5982\u4e0b\uff1a<\/p>\n

#!\/bin\/bash<\/p>\n

cat rasp.txt | while read line<\/p>\n

do<\/p>\n

aplay -D hw:0,0 $line<\/p>\n

done<\/p>\n

\u90a3\u4e48\u5982\u679c\u6211\u4eec\u60f3\u968f\u673a\u64ad\u653e\u5462\uff1fLinux\u7cfb\u7edf\u662f\u5e26\u6709Random\u968f\u673a\u6570\u7684\uff0c\u968f\u673a\u6570\u8303\u56f4\u662f0-32767\u3002\u5982\u679c\u60f3\u5f97\u5230100\u4ee5\u5185\u7684\u968f\u673a\u6570\uff0c\u90a3\u4f7f\u7528$RANDOM%100\u5373\u53ef\u3002\u6240\u4ee5\u73b0\u5728\u6211\u4eec\u9700\u8981\u77e5\u9053\u6211\u4eec\u7684\u5217\u8868\u91cc\u6709\u591a\u5c11\u884c\u97f3\u4e50\u6587\u4ef6\uff0c\u7136\u540e\u7528$RANDOM%\u884c\u6570+1\uff0c\u5f97\u5230\u968f\u673a\u7684\u884c\u6570\uff0c\u7136\u540e\u53bb\u8bfb\u53d6\u8fd9\u4e00\u884c\u7684\u97f3\u4e50\u6587\u4ef6\u5373\u53ef\u5b9e\u73b0\u968f\u673a\u64ad\u653e\uff0c\u90a3\u4e48\u6211\u4eec\u7684\u811a\u672c\u5982\u4e0b\uff1a<\/p>\n

#!\/bin\/bash<\/p>\n

int=1<\/p>\n

while(( $int<=100 ))<\/p>\n

do<\/p>\n

lines=`cat rasp.txt|wc -l`<\/p>\n

let rand=$RANDOM%$lines+1<\/p>\n

files=`sed -n “$rand,1p” rasp.txt`<\/p>\n

aplay -D hw:0,0 $files<\/p>\n

let “int++”<\/p>\n

done<\/p>\n

\u5728\u8fd9\u4e2a\u811a\u672c\u91cc\u9700\u8981\u6ce8\u610f\u7684\u662flines=`cat rasp.txt|wc -l`\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba4\u4e3a\u53cd\u5f15\u53f7\u662f\u4e00\u4e2a\u547d\u4ee4\u6267\u884c\u5b8c\u6bd5\u540e\u8d4b\u503c\u7ed9lines\u7684\u4f5c\u7528\u3002\u5230\u8fd9\u91cc\uff0c\u987a\u5e8f\u64ad\u653e\u548c\u968f\u673a\u64ad\u653e\u5c31\u5b8c\u6bd5\u4e86\u3002<\/p>\n

\u8fd9\u6837\u8fd8\u8fdc\u8fdc\u4e0d\u591f\uff0c\u6211\u4eec\u9700\u8981\u80fd\u591f\u542f\u52a8\u4e00\u4e2a\u64ad\u653e\u5668\u7684\u540e\u53f0\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u540e\u53f0\u8fdb\u7a0b\u80fd\u591f\u5b9e\u65f6\u63a5\u6536\u6211\u4eec\u4f20\u5165\u7684\u63a7\u5236\u547d\u4ee4\uff0c\u6bd4\u5982\u4e0a\u4e00\u66f2\u3001\u4e0b\u4e00\u66f2\u3001\u6682\u505c\u3001\u505c\u6b62\u64ad\u653e\u3001\u4fee\u6539\u64ad\u653e\u65b9\u5f0f\u5982\u5355\u66f2\u5faa\u73af\uff0c\u4f46\u662f\u76ee\u524d\u6765\u8bb2\uff0c\u8fd9\u4e48\u591a\u529f\u80fd\u6682\u65f6\u65e0\u6cd5\u901a\u8fc7\u7eafshell\u811a\u672c\u7684\u5f62\u5f0f\u5b9e\u73b0\uff0c\u8fd9\u4e2a\u9700\u8981\u8fdb\u884cLinux-C\u7684\u5f00\u53d1\u3002\u4f46\u662f\u65e2\u7136\u63d0\u5230\u4e86\u8fdb\u7a0b\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u4e86\u89e3\u4e00\u4e0b\u5173\u4e8eshell\u7684\u8fdb\u7a0b\u7ba1\u7406\u3002<\/p>\n

\u4e4b\u524d\u6211\u4eec\u8bf4\u8fc7\uff0c\u5982\u679c\u60f3\u4e00\u4e2a\u4efb\u52a1\u6216\u8005\u7a0b\u5e8f\u8fd8\u540e\u53f0\u6267\u884c\u53ef\u4ee5\u4f7f\u7528&\uff0c\u5b9e\u9645\u4e0alinux\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u4efb\u52a1\u8c03\u5ea6\u7684\u547d\u4ee4\u3002<\/p>\n

bg\uff1a\u5c06\u4e00\u4e2a\u5728\u540e\u53f0\u6682\u505c\u7684\u547d\u4ee4\uff0c\u53d8\u6210\u7ee7\u7eed\u6267\u884c<\/p>\n

fg\uff1a\u5c06\u540e\u53f0\u4e2d\u7684\u547d\u4ee4\u8c03\u81f3\u524d\u53f0\u7ee7\u7eed\u8fd0\u884c<\/p>\n

jobs\uff1a\u67e5\u770b\u5f53\u524d\u6709\u591a\u5c11\u5728\u540e\u53f0\u8fd0\u884c\u7684\u547d\u4ee4<\/p>\n

ctrl + z\uff1a\u53ef\u4ee5\u5c06\u4e00\u4e2a\u6b63\u5728\u524d\u53f0\u6267\u884c\u7684\u547d\u4ee4\u653e\u5230\u540e\u53f0\uff0c\u5e76\u4e14\u6682\u505c<\/p>\n

nohup\uff1a\u4e0d\u6302\u65ad\u5730\u8fd0\u884c\u547d\u4ee4<\/p>\n

\u4e0b\u9762\u6211\u4eec\u5c31\u8fd9\u4e9b\u547d\u4ee4\u505a\u4e00\u6b21\u8fde\u8d2f\u7684\u987a\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u5f00\u542f\u4e00\u4e2ashell\u547d\u4ee4\u540e\uff0c\u6309\u952ectrl+z\uff0c\u8fd9\u4e2a\u65f6\u5019\u8fd9\u4e2a\u8fdb\u7a0b\u4f1a\u6682\u505c\u653e\u5230\u540e\u53f0\uff0c\u7136\u540e\u8f93\u5165\u547d\u4ee4jobs\u770b\u5230\u6211\u4eec\u8fd9\u4e2a\u8fdb\u7a0b\u5df2\u7ecfstop\u4e86\uff0c\u7136\u540e\u5462\u6211\u4eec\u8f93\u5165bg\uff0c\u53d1\u73b0\u4e4b\u524d\u7684\u8fdb\u7a0b\u4ece\u6682\u505c\u91cd\u65b0\u5f00\u59cb\u8fd0\u884c\u4e86\uff0c\u7136\u540e\u8f93\u5165fg\uff0c\u8fd9\u4e2a\u65f6\u5019\u547d\u4ee4\u7a97\u53e3\u5c31\u88ab\u6211\u4eec\u7684\u8fd9\u4e2a\u8fdb\u7a0b\u5360\u9886\u4e86\uff0c\u4e5f\u5c31\u662f\u8bf4\u4ed6\u5df2\u7ecf\u79fb\u5230\u4e86\u524d\u53f0\u3002\u90a3\u4e48\uff0c\u4e0d\u7ba1\u6211\u4eec\u6709\u6ca1\u6709\u5728\u547d\u4ee4\u7ed3\u5c3e\u4f7f\u7528&\uff0c\u6211\u4eec\u767b\u51fashell\u540e\u8fdb\u7a0b\u90fd\u4e0d\u4f1a\u518d\u6267\u884c\uff0c\u56e0\u4e3a\u6211\u4eec\u7684\u540e\u53f0\u8fdb\u7a0b\u662f\u8ddf\u6211\u4eec\u7684xshell\u7684Session\u76f8\u5173\u7684\u3002\u90a3\u4e48\u6211\u4eec\u5c31\u9700\u8981\u4f7f\u7528nohup\u547d\u4ee4\u4e86\uff0c\u4e3e\u4e2a\u4f8b\u5b50\u6211\u53ef\u4ee5\u8fd9\u6837\u7528\uff1a<\/p>\n

nohup \/home\/play.sh &<\/p>\n

\u8fd9\u6837\u4fbf\u53ef\u4ee5\u5b9e\u73b0\u5728\u767b\u51fashell\u540e\u4f9d\u7136\u53ef\u4ee5\u540e\u53f0\u5904\u7406\u8fdb\u7a0b\u4e86\u3002<\/p>\n

\u56e0\u4e3ashell\u6ca1\u6709\u591a\u7ebf\u7a0b\u7684\u6982\u5ff5\uff0c\u4e0b\u4e00\u66f2\uff0c\u4e0a\u4e00\u66f2\u6682\u65f6\u65e0\u6cd5\u901a\u8fc7\u811a\u672c\u5b9e\u73b0\uff0c\u8fd9\u4e2a\u53ef\u4ee5\u901a\u8fc7Java\u6216\u8005C\u5b9e\u73b0\u3002\u53e6\u5916\uff0c\u8fd9\u51e0\u5929\u4e00\u76f4\u5728\u5404\u79cd\u5c1d\u8bd5\u5982\u4f55\u5b89\u88c5ffmpg\u6216mpg123\u7684\u5305\uff0c\u5728Ubuntu\u4e0b\u8fd9\u4e2a\u5305\u5f88\u5bb9\u6613\u5b89\u88c5\uff0c\u4f46\u662fcentos\u4e0b\uff0c\u7279\u522b\u662farm\u7248\uff0c\u597d\u50cf\u5e76\u6ca1\u6709\u4e13\u95e8\u7684\u5de5\u5177\u5305\uff0c\u4e0d\u77e5\u9053\u54ea\u4f4d\u5927\u795e\u6709\u6b64\u7c7b\u7684\u5b89\u88c5\u5305\u53ef\u5426\u5206\u4eab\u4e00\u4e0b\uff0c\u5728\u8fd9\u91cc\u8c22\u8fc7\u5404\u4f4d\u5927\u795e\u3002<\/p>\n

\"\u6811\u8393\u6d3e\u667a\u80fd\u5bb6\u5c45\uff1ashell\u811a\u672c\u4e4b\u97f3\u4e50\u987a\u5e8f\u548c\u968f\u673a\u64ad\u653e\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e4b\u524d\u6211\u4eec\u77e5\u9053\u4e86\u5982\u4f55\u4f7f\u7528shell\u811a\u672c\u6765\u65b0\u589e\u548c\u5220\u9664\u97f3\u4e50\u5217\u8868\uff0c\u4e0b\u9762\u6211\u4eec\u60f3\u8981\u8ba9\u6211\u4eec\u8fd9\u4e2a\u811a\u672c\u987a\u5e8f\u6216\u8005\u968f\u673a\u64ad\u653e\u97f3\u4e50\u5217\u8868\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[11],"_links":{"self":[{"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/posts\/34"}],"collection":[{"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lst.wting.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=34"}],"version-history":[{"count":1,"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/posts\/34\/revisions"}],"predecessor-version":[{"id":35,"href":"https:\/\/lst.wting.top\/index.php?rest_route=\/wp\/v2\/posts\/34\/revisions\/35"}],"wp:attachment":[{"href":"https:\/\/lst.wting.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=34"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lst.wting.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=34"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lst.wting.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=34"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}