{"id":14388,"date":"2022-03-28T08:36:05","date_gmt":"2022-03-28T00:36:05","guid":{"rendered":"https:\/\/www.linuxmi.com\/?p=14388"},"modified":"2022-03-28T08:36:53","modified_gmt":"2022-03-28T00:36:53","slug":"shell-use-bash-for-loop","status":"publish","type":"post","link":"https:\/\/www.linuxmi.com\/shell-use-bash-for-loop.html","title":{"rendered":"\u5982\u4f55\u5728 Shell \u811a\u672c\u4e2d\u4f7f\u7528 BASH ‘for’ \u5faa\u73af"},"content":{"rendered":"
\n

\u672c\u6587\u6211\u4eec\u8981\u5b66\u4f1a\u4ec0\u4e48<\/h3>\n
\n
    \n
  • \u5728 Bash\u00a0for\u5faa\u73af\u4e2d\uff0c\u00a0<\/strong>do<\/strong>\u548cdone<\/strong>\u4e4b\u95f4\u7684\u6240\u6709\u8bed\u53e5\u5bf9\u5217\u8868\u6216\u6570\u5b57\u8303\u56f4\u4e2d\u7684\u6bcf\u4e2a\u9879\u76ee\u6267\u884c\u4e00\u6b21\u3002<\/li>\n
  • \u5bf9\u4e8e\u5927\u5217\u8868\uff0c\u4f7f\u7528in<\/strong>\u00a0{list} \u5728\u8d77\u70b9\u548c\u7ec8\u70b9\u4e4b\u95f4\u5faa\u73af\u3002\u4f7f\u7528\u7701\u7565\u53f7\u8fed\u4ee3\u6574\u4e2a\u6570\u5b57\u8303\u56f4\uff0c\u4f8b\u5982{1..10} \u4e2d\u7684\u6570\u5b57<\/strong>\u3002<\/li>\n
  • \u8981\u8df3\u8fc7\u67d0\u4e9b\u6570\u5b57\uff0c\u8bf7\u5728\u8303\u56f4\u5185\u6dfb\u52a0\u7b2c\u4e09\u4e2a\u6570\u5b57\u3002\u4f8b\u5982\uff0c\u4f7f\u7528{0..100..10}<\/strong>\u4ec5\u5217\u51fa\u6bcf 10 \u4e2a\u6570\u5b57\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n

    \u5728\u7f16\u7a0b\u6216\u811a\u672c\u8bed\u8a00\u4e2d\uff0cBash \u63d0\u4f9b\u4e86\u51e0\u79cd\u91cd\u590d\u4ee3\u7801\u7684\u65b9\u6cd5 – \u79f0\u4e3a\u5faa\u73af\u7684\u8fc7\u7a0b – \u5176\u4e2d for <\/strong>\u5faa\u73af\u91cd\u590d\u4ee3\u7801\u7684\u67d0\u4e2a\u90e8\u5206\u3002\u8fd9\u5141\u8bb8\u8fd0\u884c\u4e00\u7cfb\u5217\u547d\u4ee4\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u3002\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u5c06\u5411\u60a8\u4ecb\u7ecd\u5982\u4f55\u7f16\u5199 Bash for <\/strong>\u5faa\u73af\u3002<\/p>\n

    \u5982\u4f55\u5faa\u73af\u904d\u5386\u5217\u8868<\/span><\/h2>\n

    \u8bf8\u5982 Bash \u4e4b\u7c7b\u7684\u811a\u672c\u8bed\u8a00\u5177\u6709\u4e0e\u5176\u4ed6\u8bed\u8a00\u76f8\u4f3c\u7684\u7f16\u7a0b\u7ed3\u6784\u3002\u4f8b\u5982\uff0c\u5bfc\u5165\u53c2\u6570\u4ece\u952e\u76d8\u83b7\u53d6\u8f93\u5165\u5e76\u5c06\u8fd9\u4e9b\u8f93\u5165\u5b58\u50a8\u4e3a\u53d8\u91cf\uff0c\u7136\u540e\u6839\u636e\u8f93\u5165\u53c2\u6570\u7684\u503c\u6267\u884c\u7279\u5b9a\u64cd\u4f5c\u3002<\/p>\n

    \u4e0b\u9762\u662f\u4e00\u4e2a\u540d\u4e3alinuxmi.sh<\/strong>\u00a0\u7684\u7b80\u5355\u793a\u4f8b\u811a\u672c\uff1a<\/p>\n

    \n
    \n
    \n
    #!\/bin\/bash\r\nfor number in 1 2 3 4 5\r\ndo\r\necho $number\r\ndone\r\nexit 0<\/code><\/pre>\n
    Bash \u4f7f\u7528for\u5faa\u73af\u7684\u65b9\u5f0f\u4e0e\u5176\u4ed6\u7f16\u7a0b\u548c\u811a\u672c\u8bed\u8a00\u5904\u7406<\/strong>for<\/strong>\u5faa\u73af\u7684\u65b9\u5f0f\u6709\u4e9b\u4e0d\u540c\u3002\u8ba9\u6211\u4eec\u5206\u89e3\u811a\u672c\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n
    \u5728 BASH\u00a0for<\/strong>\u5faa\u73af\u4e2d\uff0cdo<\/strong>\u548cdone<\/strong>\u4e4b\u95f4\u7684\u6240\u6709\u8bed\u53e5\u5bf9\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u9879\u76ee\u90fd\u6267\u884c\u4e00\u6b21\u3002\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5217\u8868\u662fin<\/strong>\u5355\u8bcd\u4e4b\u540e\u7684\u6240\u6709\u5185\u5bb9\u2014 \u6570\u5b571 2 3 4 5<\/strong>\u3002<\/p>\n
    \u6bcf\u6b21\u5faa\u73af\u8fed\u4ee3\u65f6\uff0c\u5217\u8868\u4e2d\u7684\u4e0b\u4e00\u4e2a\u503c\u5c06\u63d2\u5165\u5230\u5355\u8bcdfor<\/strong>\u4e4b\u540e\u6307\u5b9a\u7684\u53d8\u91cf\u4e2d\u3002\u5728\u4e0a\u9762\u7684\u5faa\u73af\u4e2d\uff0c\u53d8\u91cf\u88ab\u79f0\u4e3anumber<\/strong>\u3002<\/p>\n
    echo\u8bed\u53e5 \u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u4fe1\u606f\u3002\u56e0\u6b64\uff0c\u6b64\u793a\u4f8b\u91c7\u7528\u6570\u5b57 1 \u5230 5\uff0c\u5e76\u5c06\u6bcf\u4e2a\u6570\u5b57\u4e00\u4e00\u8f93\u51fa\u5230\u5c4f\u5e55\uff1a<\/p>\n
    \"\"<\/p>\n
    \u5982\u4f55\u5728\u8d77\u70b9\u548c\u7ec8\u70b9\u4e4b\u95f4\u5faa\u73af<\/span><\/h2>\n
    \u8fd9\u4e2a linuxmi.sh \u811a\u672c\u7684\u95ee\u9898\u5728\u4e8e\uff0c\u5982\u679c\u60a8\u60f3\u5904\u7406\u4e00\u4e2a\u66f4\u5927\u7684\u5217\u8868\uff08\u4f8b\u5982\uff0c1 \u5230 500\uff09\uff0c\u5219\u952e\u5165\u6240\u6709\u6570\u5b57\u5c06\u82b1\u8d39\u5f88\u957f\u65f6\u95f4\u3002\u76f8\u53cd\uff0c\u6307\u5b9a\u4e00\u4e2a\u8d77\u70b9\u548c\u7ec8\u70b9\u5c31\u7b80\u5355\u4e86\uff1a<\/p>\n
    \n
    #!\/bin\/bash\r\nfor number in {1..10}\r\ndo\r\necho \"$number \"\r\ndone\r\nexit 0<\/code><\/pre>\n
    \u89c4\u5219\u662f\u4e00\u6837\u7684\u3002in<\/strong>\u8fd9\u4e2a\u8bcd\u540e\u9762\u7684\u503c\u7ec4\u6210\u4e86\u8981\u8fed\u4ee3\u7684\u5217\u8868\uff0c\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u503c\u90fd\u653e\u5728\u53d8\u91cf\uff08\u5373number<\/code>\uff09\u4e2d\uff0c\u6bcf\u6b21\u5faa\u73af\u8fed\u4ee3\u65f6\uff0c\u90fd\u4f1a\u6267\u884cdo<\/strong>\u548cdone<\/strong>\u4e4b\u95f4\u7684\u8bed\u53e5\u3002<\/p>\n<\/div>\n
    \u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5217\u8868\u7684\u5f62\u6210\u65b9\u5f0f\u3002\u5927\u62ec\u53f7\u8868\u793a\u4e00\u4e2a\u8303\u56f4\uff0c\u5728\u672c\u4f8b\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8303\u56f4\u662f 1 \u5230 10\uff08\u4e24\u4e2a\u70b9\u5206\u9694\u8303\u56f4\u7684\u5f00\u59cb\u548c\u7ed3\u675f\uff09\u3002<\/p>\n
    \u56e0\u6b64\uff0c\u6b64\u793a\u4f8b\u904d\u5386 1 \u5230 10 \u4e4b\u95f4\u7684\u6bcf\u4e2a\u6570\u5b57\u5e76\u5c06\u8be5\u6570\u5b57\u8f93\u51fa\u5230\u5c4f\u5e55\u3002\u5982\u4e0b\uff1a<\/p>\n
    \"\"<\/p>\n
    \u76f8\u540c\u7684\u5faa\u73af\u53ef\u4ee5\u8fd9\u6837\u7f16\u5199\uff0c\u8bed\u6cd5\u4e0e\u7b2c\u4e00\u4e2a\u793a\u4f8b\u76f8\u540c\uff1a<\/p>\n
    \n
    for number in 1 2 3 4 5 6 7 8 9 10<\/code><\/pre>\n<\/div>\n
    \u5982\u4f55\u8df3\u8fc7\u8303\u56f4\u5185\u7684\u6570\u5b57<\/span><\/h2>\n
    \u524d\u9762\u7684\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u8d77\u70b9\u548c\u7ec8\u70b9\u4e4b\u95f4\u5faa\u73af\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u8df3\u8fc7\u8303\u56f4\u5185\u7684\u6570\u5b57\u3002<\/p>\n
    \u4f8b\u5982\uff0c\u8981\u5728 0 \u548c 100 \u4e4b\u95f4\u5faa\u73af\uff0c\u4f46\u53ea\u663e\u793a 10 \u7684\u500d\u6570\u7684\u6570\u5b57\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u811a\u672c\u83b7\u53d6\u6b64\u8f93\u51fa\uff1a<\/p>\n
    \n
    #!\/bin\/bash\r\nfor number in {0..100..10}\r\ndo\r\necho \"$number \"\r\ndone\r\nexit 0<\/code><\/pre>\n<\/div>\n
    \u89c4\u5219\u662f\u4e00\u6837\u7684\u3002\u5728do<\/strong>\u548cdone<\/strong>\u4e4b\u95f4\u6709\u4e00\u4e2a\u5217\u8868\u3001\u4e00\u4e2a\u53d8\u91cf\u548c\u4e00\u7ec4\u8981\u6267\u884c\u7684\u8bed\u53e5\u3002\u8fd9\u6b21\u7684\u5217\u8868\u5982\u4e0b\u6240\u793a\uff1a{0..100..10}<\/strong>\u3002<\/p>\n
    \u5927\u62ec\u53f7\u4e2d\u7b2c\u4e00\u4e2a\u6570\u5b57\u662f 0\uff0c\u7ed3\u675f\u6570\u5b57\u662f 100\u3002\u7b2c\u4e09\u4e2a\u6570\u5b57 (10) \u662f\u5217\u8868\u4e2d\u5c06\u8df3\u8fc7\u7684\u9879\u76ee\u6570\u3002<\/p>\n
    \u56e0\u6b64\uff0c\u4e0a\u9762\u7684\u793a\u4f8b\u663e\u793a\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n
    \"\"<\/p>\n
    \u4e00\u4e2a\u5b9e\u9645\u7684\u4f8b\u5b50<\/span><\/h2>\n
    For \u5faa\u73af\u4e0d\u4ec5\u4ec5\u8fed\u4ee3\u6570\u5b57\u5217\u8868\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u5176\u4ed6\u547d\u4ee4\u7684\u8f93\u51fa\u4f5c\u4e3a\u5217\u8868\u3002<\/p>\n
    \u4ee5\u4e0b\u793a\u4f8b\u663e\u793a\u5982\u4f55\u5c06\u97f3\u9891\u6587\u4ef6\u4eceMP3\u8f6c\u6362\u4e3aWAV\uff1a<\/p>\n
    \n
    #!\/bin\/bash\r\nfor file in .\/*.mp3\r\ndo\r\nmpg -w .\/wavs\/\"${file}\".wav \"$file\"\r\ndone<\/code><\/pre>\n<\/div>\n
    \u6b64\u793a\u4f8b\u4e2d\u7684\u5217\u8868\u662f\u5f53\u524d\u6587\u4ef6\u5939\u4e2d\u6bcf\u4e2a\u6269\u5c55\u540d\u4e3a .MP3 \u7684\u6587\u4ef6\uff0c\u53d8\u91cf\u662f\u4e00\u4e2a\u6587\u4ef6\u3002<\/p>\n
    mpg \u547d\u4ee4\u5c06 MP3 \u6587\u4ef6\u8f6c\u6362\u4e3a WAV\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5148\u4f7f\u7528\u5305\u7ba1\u7406\u5668\u5b89\u88c5\u6b64\u5de5\u5177\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u672c\u6587\u6211\u4eec\u8981\u5b66\u4f1a\u4ec0\u4e48 \u5728 Bash\u00a0for\u5faa\u73af\u4e2d\uff0c\u00a0do\u548cdone\u4e4b\u95f4\u7684\u6240\u6709\u8bed\u53e5\u5bf9\u5217\u8868\u6216\u6570\u5b57\u8303\u56f4\u4e2d\u7684\u6bcf …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2],"tags":[75,946],"class_list":["post-14388","post","type-post","status-publish","format-standard","hentry","category-zixun","tag-bash","tag-shell"],"aioseo_notices":[],"views":1685,"_links":{"self":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/14388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/comments?post=14388"}],"version-history":[{"count":4,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/14388\/revisions"}],"predecessor-version":[{"id":15161,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/14388\/revisions\/15161"}],"wp:attachment":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/media?parent=14388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/categories?post=14388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/tags?post=14388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}