{"id":161,"date":"2025-09-05T09:42:08","date_gmt":"2025-09-05T01:42:08","guid":{"rendered":"https:\/\/www.mooloco.com\/?p=161"},"modified":"2025-12-09T11:21:08","modified_gmt":"2025-12-09T03:21:08","slug":"shell-%e6%95%b0%e7%bb%84%e5%b8%b8%e7%94%a8%e6%93%8d%e4%bd%9c%e9%80%9f%e6%9f%a5%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/www.mooloco.com\/?p=161","title":{"rendered":"Shell \u6570\u7ec4\u5e38\u7528\u64cd\u4f5c\u901f\u67e5\u8868"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728 <strong>Shell \u811a\u672c<\/strong>\uff08\u4e3b\u8981\u662f bash\/zsh\uff09\u91cc\uff0c\u6570\u7ec4\u662f\u5f88\u5e38\u7528\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u64cd\u4f5c<\/th><th>\u5199\u6cd5 \/ \u793a\u4f8b<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u5b9a\u4e49\u6570\u7ec4<\/td><td><code>arr=(a b c)<\/code><\/td><td>\u4e00\u6b21\u6027\u5b9a\u4e49<\/td><\/tr><tr><td>\u6307\u5b9a\u7d22\u5f15\u8d4b\u503c<\/td><td><code>arr[2]=x<\/code><\/td><td>\u7ed9\u7d22\u5f15 2 \u8d4b\u503c<\/td><\/tr><tr><td>\u53d6\u5355\u4e2a\u5143\u7d20<\/td><td><code>${arr[0]}<\/code><\/td><td>\u53d6\u7b2c 0 \u4e2a\u5143\u7d20<\/td><\/tr><tr><td>\u6240\u6709\u5143\u7d20<\/td><td><code>${arr[@]}<\/code><\/td><td>\u5c55\u5f00\u4e3a\u591a\u4e2a\u53c2\u6570<\/td><\/tr><tr><td><\/td><td><code>${arr[*]}<\/code><\/td><td>\u5c55\u5f00\u4e3a\u4e00\u4e2a\u6574\u4f53<\/td><\/tr><tr><td>\u957f\u5ea6\uff08\u4e2a\u6570\uff09<\/td><td><code>${#arr[@]}<\/code><\/td><td>\u6570\u7ec4\u5143\u7d20\u6570\u91cf<\/td><\/tr><tr><td>\u5355\u4e2a\u5143\u7d20\u957f\u5ea6<\/td><td><code>${#arr[0]}<\/code><\/td><td>\u7d22\u5f15 0 \u5143\u7d20\u7684\u957f\u5ea6<\/td><\/tr><tr><td>\u904d\u5386\u6570\u7ec4<\/td><td><code>for i in \"${arr[@]}\"; do echo $i; done<\/code><\/td><td>\u904d\u5386\u6240\u6709\u5143\u7d20<\/td><\/tr><tr><td>\u5220\u9664\u5143\u7d20<\/td><td><code>unset arr[1]<\/code><\/td><td>\u5220\u9664\u7d22\u5f15 1 \u7684\u5143\u7d20<\/td><\/tr><tr><td>\u5220\u9664\u6574\u4e2a\u6570\u7ec4<\/td><td><code>unset arr<\/code><\/td><td>\u6e05\u7a7a\u6574\u4e2a\u6570\u7ec4<\/td><\/tr><tr><td>\u5207\u7247\uff08\u5b50\u96c6\uff09<\/td><td><code>${arr[@]:1:2}<\/code><\/td><td>\u4ece\u7d22\u5f15 1 \u5f00\u59cb\uff0c\u53d6 2 \u4e2a\u5143\u7d20<\/td><\/tr><tr><td>\u66ff\u6362\u5185\u5bb9<\/td><td><code>${arr[@]\/old\/new}<\/code><\/td><td>\u6279\u91cf\u66ff\u6362\u6570\u7ec4\u91cc\u5b57\u7b26\u4e32<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Shell \u811a\u672c\uff08\u4e3b\u8981\u662f bash\/zsh\uff09\u91cc\uff0c\u6570\u7ec4\u662f\u5f88\u5e38\u7528\u7684\u6570\u636e\u7ed3\u6784\u3002 \u64cd\u4f5c \u5199\u6cd5 \/ \u793a\u4f8b \u8bf4\u660e \u5b9a\u4e49<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/www.mooloco.com\/?p=161\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-161","post","type-post","status-publish","format-standard","hentry","category-main_contents"],"_links":{"self":[{"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/posts\/161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=161"}],"version-history":[{"count":1,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/posts\/161\/revisions"}],"predecessor-version":[{"id":162,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=\/wp\/v2\/posts\/161\/revisions\/162"}],"wp:attachment":[{"href":"https:\/\/www.mooloco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mooloco.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}