{"id":3480,"date":"2012-09-12T13:33:40","date_gmt":"2012-09-12T05:33:40","guid":{"rendered":"http:\/\/jpuyy.com\/?p=3480"},"modified":"2012-10-16T22:24:06","modified_gmt":"2012-10-16T14:24:06","slug":"shell-read-text-files","status":"publish","type":"post","link":"https:\/\/jpuyy.com\/?p=3480","title":{"rendered":"\u5c06\u6570\u636e\u6587\u4ef6\u7684\u6307\u5b9a\u57df\u8bfb\u53d6\u5230shell\u811a\u672c\u4e2d"},"content":{"rendered":"<p>\u8fd9\u4e2a\u4f8b\u5b50\u8bf4\u660e\u4e86\u600e\u6837\u5728 shell \u811a\u672c\u4e2d\u4ece\u6570\u636e\u6587\u4ef6\u8bfb\u53d6\u7279\u5b9a\u7684\u57df\uff08field\uff09\u5e76\u8fdb\u884c\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6587\u4ef6 employees.txt \u7684\u683c\u5f0f\u662f{employee-name}:{employee-id}:{department-name}\uff0c\u4ee5\u5192\u53f7\u8fdb\u884c\u5212\u5206\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre>$ cat employees.txt<\/pre>\n<p>Emma Thomas:100:Marketing<br \/>\nAlex Jason:200:Sales<br \/>\nMadison Randy:300:Product Development<br \/>\nSanjay Gupta:400:Support<br \/>\nNisha Singh:500:Sales<\/p>\n<p>\u4e0b\u9762\u7684 shell \u811a\u672c\u8bf4\u660e\u4e86\u5982\u4f55\u4ece\u8fd9\u4e2a employee.txt \u6587\u4ef6\u4e2d\u8bfb\u53d6\u7279\u5b9a\u7684\u57df\uff08field\uff09\u3002<\/p>\n<pre> $ vi read-employees.sh<\/pre>\n<pre>#!\/bin\/bash\r\nIFS=:\r\necho \"Employee Names:\"\r\necho \"---------------\"\r\nwhile read name empid dept\r\ndo \r\n   echo \"$name is part of $dept department\"\r\ndone &lt; ~\/employees.txt<\/pre>\n<p>\u8d4b\u4e88\u811a\u672c\u53ef\u6267\u884c\u6743\u9650\u540e\u6267\u884c\u8be5\u811a\u672c<\/p>\n<pre> $ chmod u+x read-employees.sh <\/pre>\n<pre> $ .\/read-employees.sh <\/pre>\n<p>Employee Names:<br \/>\n&#8212;&#8212;&#8212;&#8212;&#8212;<br \/>\nEmma Thomas is part of Marketing department<br \/>\nAlex Jason is part of Sales department<br \/>\nMadison Randy is part of Product Development department<br \/>\nSanjay Gupta is part of Support department<br \/>\nNisha Singh is part of Sales department<\/p>\n<p>\u6765\u81ea\uff1a<a href=\"http:\/\/www.linuxnote.org\/the-data-file-to-the-specified-domain-to-read-shell-scripts.html\">http:\/\/www.linuxnote.org\/the-data-file-to-the-specified-domain-to-read-shell-scripts.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2a\u4f8b\u5b50\u8bf4\u660e\u4e86\u600e\u6837\u5728 shell \u811a\u672c\u4e2d\u4ece\u6570\u636e\u6587\u4ef6\u8bfb\u53d6\u7279\u5b9a\u7684\u57df\uff08field\uff09\u5e76\u8fdb\u884c\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6587\u4ef6 employees.txt \u7684\u683c\u5f0f\u662f{employee-name}:{employee-id}:{department-name}\uff0c\u4ee5\u5192\u53f7\u8fdb\u884c\u5212\u5206\uff0c\u5982\u4e0b\u6240\u793a\u3002 $ cat employees.txt Emma Thomas:100:Marketing Alex Jason:200:Sales Madison Randy:300:Product Development Sanjay Gupta:400:Support Nisha Singh:500:Sales \u4e0b\u9762\u7684 shell \u811a\u672c\u8bf4\u660e\u4e86\u5982\u4f55\u4ece\u8fd9\u4e2a employee.txt \u6587\u4ef6\u4e2d\u8bfb\u53d6\u7279\u5b9a\u7684\u57df\uff08field\uff09\u3002 $ vi read-employees.sh #!\/bin\/bash IFS=: echo &#8220;Employee Names:&#8221; echo &#8220;&#8212;&#8212;&#8212;&#8212;&#8212;&#8221; while read name empid dept do echo &#8220;$name is part of $dept department&#8221; done &lt; ~\/employees.txt \u8d4b\u4e88\u811a\u672c\u53ef\u6267\u884c\u6743\u9650\u540e\u6267\u884c\u8be5\u811a\u672c $ chmod u+x read-employees.sh [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-3480","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/3480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3480"}],"version-history":[{"count":7,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/3480\/revisions"}],"predecessor-version":[{"id":4076,"href":"https:\/\/jpuyy.com\/index.php?rest_route=\/wp\/v2\/posts\/3480\/revisions\/4076"}],"wp:attachment":[{"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jpuyy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}