{"id":858,"date":"2020-06-23T16:50:19","date_gmt":"2020-06-23T08:50:19","guid":{"rendered":"https:\/\/www.linuxmi.com\/?p=858"},"modified":"2020-06-23T16:50:19","modified_gmt":"2020-06-23T08:50:19","slug":"bash","status":"publish","type":"post","link":"https:\/\/www.linuxmi.com\/bash.html","title":{"rendered":"\u5982\u4f55\u6b63\u786e\u7f16\u5199bash\u811a\u672c"},"content":{"rendered":"

\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u770b\u5230\u521b\u5efa\u811a\u672c\u65f6\u7684\u6700\u4f73\u5b9e\u8df5\u6cd5\u5219\uff0c\u6216\u8005\u66f4\u786e\u5207\u5730\u8bf4\uff0c\u5982\u4f55\u6b63\u786e\u5730\u7f16\u5199bash\u811a\u672c\uff0c\u4f7f\u5b83\u53ef\u4ee5\u88ab\u7406\u89e3\uff0c\u6700\u91cd\u8981\u7684\u662f\uff0c\u53ef\u91cd\u590d\u4f7f\u7528\u3002<\/p>\n

\u5982\u4f55\u6b63\u786e\u7f16\u5199bash\u811a\u672c<\/strong><\/p>\n

\u6211\u4eec\u63d0\u4f9b\u4e86\u4efb\u4f55bash\u5f00\u53d1\u4eba\u5458\u90fd\u5e94\u8be5\u9075\u5faa\u768410\u6761\u5efa\u8bae\u3002<\/p>\n

\u8bb0\u5f97\u6dfb\u52a0\u6ce8\u91ca<\/strong><\/p>\n

\u6ce8\u91ca\u6709\u52a9\u4e8e\u7406\u89e3\u811a\u672c\u5f00\u53d1\uff0c\u5e76\u4f7f\u5e0c\u671b\u7ee7\u7eed\u6216\u6539\u8fdb\u811a\u672c\u7684\u5176\u4ed6\u5f00\u53d1\u4eba\u5458\u66f4\u5bb9\u6613\u5b8c\u6210\u4efb\u52a1\u3002\u8bf7\u8bb0\u4f4f\uff0c\u5b83\u4eec\u662f\u6307\u793a\u6027\u7684\uff0c\u4e3a\u4e86\u907f\u514d\u6267\u884c\uff0c\u5b83\u4eec\u5fc5\u987b\u88ab\u6ce8\u91ca(\u5b57\u7b26#)\u3002<\/p>\n

\u5728Bash\u811a\u672c\u4e2d\u6dfb\u52a0\u6ce8\u91ca\u53ef\u4ee5\u8282\u7701\u4ee5\u540e\u67e5\u770b\u4ee3\u7801\u65f6\u7684\u5927\u91cf\u65f6\u95f4\u548c\u7cbe\u529b\uff0c\u5047\u8bbe\u60a8\u8981\u66f4\u6539\u51e0\u4e2a\u6708\u6216\u51e0\u5e74\u524d\u7f16\u5199\u7684\u811a\u672c\u3002\u9664\u975e\u60a8\u6dfb\u52a0\u6ce8\u91ca\uff0c\u5426\u5219\u60a8\u5c06\u4e0d\u8bb0\u5f97\u4e3a\u4ec0\u4e48\u7f16\u5199\u4e86\u8fd9\u4e9b\u590d\u6742\u7684\u4ee3\u7801\u3002<\/p>\n

\u5355\u884c\u6ce8\u91ca\uff1a<\/strong><\/p>\n

# The script by linuxmi.com, …..<\/p>\n

\u4f8b\u5b50\uff1a<\/p>\n

\u201c\uff03\u201d\u7b26\u53f7\u7528\u4e8e\u5728bash\u811a\u672c\u4e2d\u6dfb\u52a0\u5355\u884c\u6ce8\u91ca\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u201c linuxmi.com.sh\u201d\u7684\u65b0\u6587\u4ef6\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u5e26\u6709\u5355\u884c\u6ce8\u91ca\u7684\u811a\u672c\u3002<\/p>\n

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

# \u4e24\u4e2a\u6570\u503c\u76f8\u52a0
\n((sum=17+20))<\/p>\n

#\u6253\u5370\u7ed3\u679c
\necho $sum<\/p>\n

\u591a\u884c\u6ce8\u91ca\uff1a<\/strong><\/p>\n

\u5728bash\u4e2d\u53ef\u4ee5\u4ee5\u5404\u79cd\u65b9\u5f0f\u4f7f\u7528\u591a\u884c\u6ce8\u91ca\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u663e\u793a\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u5728\u8fd9\u91cc\uff0c’:’\u548c” ‘ “\u7b26\u53f7\u7528\u4e8e\u5728bash\u811a\u672c\u4e2d\u6dfb\u52a0\u591a\u884c\u6ce8\u91ca\u3002\u4e0b\u9762\u7684\u811a\u672c\u5c06\u8ba1\u7b977×9\u7684\u79ef\u3002<\/p>\n

#!\/bin\/bash
\n: ‘<\/span><\/strong>
\n\u4e0b\u9762\u662f\u4e24\u4e2a\u6570\u7684\u76f8\u4e58\u7684\u79ef
\n\u8fd9\u91cc\u662f7\u4e589
\n‘<\/span><\/strong>
\n((area=7*9))
\necho $area<\/p>\n

$\"\"$ <\/p>\n

\u53d1\u73b0\u9519\u8bef\u65f6\u9000\u51fa\u811a\u672c<\/strong><\/p>\n

Bash\u975e\u5e38\u5f3a\u5927\uff0c\u6709\u65f6\u5f53\u51fa\u73b0\u9519\u8bef\u65f6\uff0c\u5b83\u80fd\u591f\u7ee7\u7eed\u8fd0\u884c\u3002\u60a8\u4e0d\u5e94\u8be5\u5141\u8bb8\u8fd9\u6837\u505a\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u201cerrexit\u201d\u7684\u7f29\u5199\u9009\u9879\u3002<\/p>\n

# The script by linuxmi.com<\/p>\n

set -e<\/p>\n

\u5f53bash\u4f7f\u7528\u672a\u58f0\u660e\u7684\u53d8\u91cf\u65f6\u9000\u51fa\u811a\u672c<\/strong><\/p>\n

\u6709\u65f6bash\u53ef\u80fd\u4f1a\u5c1d\u8bd5\u8fd0\u884c\u672a\u58f0\u660e\u7684\u53d8\u91cf\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u811a\u672c\u6700\u7ec8\u7ed3\u679c\u7684\u5f02\u5e38\u8fd0\u884c\u3002\u8981\u9000\u51fa\u811a\u672c\uff0c\u6211\u4eec\u4f7f\u7528\u7f29\u5199\u7684\u201cnounset\u201d\u9009\u9879\u3002<\/p>\n

# The script by linuxmi.com<\/p>\n

set -u<\/p>\n

\u5bf9\u53d8\u91cf\u7684\u5f15\u7528\u5fc5\u987b\u5e26\u6709\u53cc\u5f15\u53f7<\/strong><\/p>\n

\u5f53\u6211\u4eec\u5728\u5f15\u7528\u53d8\u91cf\u65f6\u5fc5\u987b\u4f7f\u7528\u53cc\u5f15\u53f7\uff0c\u6211\u4eec\u907f\u514d\u4e86\u5355\u8bcd\u7684\u5212\u5206\u548c\u7a7a\u683c\u3002<\/p>\n

#!\/bin\/bash
\n# The script by linuxmi.com<\/p>\n

set -e<\/p>\n

set -u<\/p>\n

echo “\u6211\u662fLinux\u8ff7”
\necho
\nnames=”www.linuxmi.com<\/a>\u00a0Linux\u8ff7”
\nfor name in $names; do
\necho “$name”
\ndone
\necho<\/p>\n

echo “\u53cc\u5f15\u53f7\u8f93\u51fa”
\necho
\nfor name in “$names”; do
\necho “$name”
\ndone<\/p>\n

exit 0<\/p>\n

\u8f93\u51fa\u5982\u4e0b\u56fe\uff1a<\/p>\n

$\"\"$ <\/p>\n