{"id":47342,"date":"2023-04-29T14:19:37","date_gmt":"2023-04-29T06:19:37","guid":{"rendered":"http:\/\/lrxjmw.cn\/?p=47342"},"modified":"2023-04-29T14:19:37","modified_gmt":"2023-04-29T06:19:37","slug":"bash3-bash4-different","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/bash3-bash4-different.html","title":{"rendered":"bash3\u4e0ebash4\u6570\u7ec4\u7ed3\u6784\u7684\u533a\u522b"},"content":{"rendered":"<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u5185\u5bb9\u5982\u4e0b<\/strong><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-33876 aligncenter\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/09\/bash-logo-web.png\" alt=\"\" width=\"376\" height=\"158\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/09\/bash-logo-web.png 376w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/09\/bash-logo-web-300x126.png 300w\" sizes=\"auto, (max-width: 376px) 100vw, 376px\" \/><\/p>\n<p>bash3.x\u4e0d\u652f\u6301\u5173\u8054\u6570\u7ec4(associative arrays)\u7ed3\u6784\uff0c\u53ea\u652f\u6301\u7528\u6570\u503c\u4f5c\u6570\u7ec4\u7d22\u5f15\uff0c\u5982<\/p>\n<pre>declare -a Myarray\r\nMyarray[1]=\u201dwww.ttlsa.com\u201d\r\nMyarray[2]=\u201d39514058\u201d<\/pre>\n<p>bash4.x\u652f\u6301\u5173\u8054\u6570\u7ec4\u7ed3\u6784\uff0c\u5982<\/p>\n<pre>declare -A Myarray\r\nMyarray['website']=\u201dwww.ttlsa.com\u201d\r\nMyarray['QQqun']=\u201d39514058\u201d<\/pre>\n<p>\u652f\u6301\u5173\u8054\u6570\u7ec4\u7ed3\u6784\uff0c\u5c06\u5927\u5927\u65b9\u4fbf\u5b9a\u4e49\u53d8\u91cf\uff0c\u66f4\u597d\u7684\u5199\u51fa\u65b9\u4fbf\u7b80\u6d01\u7684\u4ee3\u7801\u3002\u7b80\u5355\u5c31\u662f\u7f8e\u3002<br \/>\n\u6211\u4eec\u5de5\u4f5c\u4e2d\u770b\u5230\u4e00\u63a8if...elsif...else\u8bed\u53e5\uff0c\u5341\u591a\u4e2a\u5224\u65ad\uff0c\u773c\u775b\u90fd\u770b\u82b1\u4e86\uff0c\u4fee\u6539\u8d77\u6765\u4e5f\u4e0d\u65b9\u4fbf\u3002<br \/>\n\u987a\u4fbf\u6539\u4e86\u4e0b\uff1a<\/p>\n<pre>#!\/bin\/bash\r\n#\r\nftpserver=(\r\n           \"121.207.242:ftpserver1.backup.xx.com\"\r\n           \"121.207.240:ftpserver2.backup.xx.com\"\r\n           \"121.207.250:ftpserver3.backup.xx.com\"\r\n                )\r\n\r\nfunction process_array() {\r\n    declare -a hash=(\"${!1}\")\r\n    key=\"${2}\"\r\n    for ftpsrv in \"${hash[@]}\"; do\r\n\t# key: ${ftpsrv%%:*}\r\n\t# value: ${ftpsrv##*:}\r\n        if [ $key = ${ftpsrv%%:*} ];then\r\n            ftpserver=${ftpsrv#*:}\r\n            echo $ftpserver\r\n        fi\r\n    done\r\n}\r\nftp_s=$(process_array ftpserver[@] \"121.207.250\")\r\necho $ftp_s<\/pre>\n<p>\u8bf4\u660e\u4e0b\uff1a<span style=\"padding: 4px 8px; font-size: 12px; border-radius: 3px; color: #c7254e; background-color: #f9f2f4;\">121.207.242:ftpserver1.backup.xx.com<\/span>\uff0c\u5192\u53f7\u524d\u9762\u662fkey\uff0c\u540e\u9762\u662fvalue\uff0c\u4e0d\u540c\u7684IP\u6bb5\u5bf9\u5e94\u4e0d\u540c\u7684ftp\u5730\u5740\u3002\u6ca1\u6709\u5168\u90e8\u628aif...elsif...else\u8bed\u53e5\u6761\u4ef6\u7f57\u5217\u5230\u53d8\u91cfftpserver\u3002\u8981\u6dfb\u52a0\u66f4\u6539\u76f8\u5173\u4fe1\u606f\uff0c\u53ea\u9700\u66f4\u6539ftpserver\u53d8\u91cf\u5373\u53ef\u3002<\/p>\n<blockquote>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"http:\/\/www.ttlsa.com\/shell\/bash3-and-bash4-array\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.ttlsa.com\/shell\/bash3-and-bash4-array\/<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/bash3-bash4-different.html\" target=\"_blank\" rel=\"noopener\">http:\/\/lrxjmw.cn\/bash3-bash4-different.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u5218\u5cf0\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5185\u5bb9\u5982\u4e0b bash3.x\u4e0d\u652f\u6301\u5173\u8054\u6570\u7ec4(associative arrays)\u7ed3\u6784\uff0c\u53ea\u652f\u6301\u7528\u6570\u503c\u4f5c\u6570\u7ec4\u7d22\u5f15\uff0c\u5982 [&hellip;]<\/p>\n","protected":false},"author":116,"featured_media":35681,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-47342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/47342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/116"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=47342"}],"version-history":[{"count":10,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/47342\/revisions"}],"predecessor-version":[{"id":271055,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/47342\/revisions\/271055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/35681"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=47342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=47342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=47342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}