{"id":1557,"date":"2021-05-26T19:26:24","date_gmt":"2021-05-26T11:26:24","guid":{"rendered":"http:\/\/www.821121.com\/?p=1557"},"modified":"2021-06-03T10:28:55","modified_gmt":"2021-06-03T02:28:55","slug":"linux-shell-%e6%96%87%e6%9c%ac%e5%a4%84%e7%90%86%e5%b7%a5%e5%85%b7%e4%b9%8bsed","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=1557","title":{"rendered":"linux Shell \u6587\u672c\u5904\u7406\u5de5\u5177\u4e4bSED"},"content":{"rendered":"

sed \u6587\u672c\u66ff\u6362\u5229\u5668<\/p>\n

\u9996\u5904\u66ff\u6362<\/p>\n

  seg 's\/text\/replace_text\/' file   \/\/\u66ff\u6362\u6bcf\u4e00\u884c\u7684\u7b2c\u4e00\u5904\u5339\u914d\u7684text<\/code><\/pre>\n
\u5168\u5c40\u66ff\u6362<\/p>\n
   seg 's\/text\/replace_text\/g' file<\/code><\/pre>\n
\u9ed8\u8ba4\u66ff\u6362\u540e\uff0c\u8f93\u51fa\u66ff\u6362\u540e\u7684\u5185\u5bb9\uff0c\u5982\u679c\u9700\u8981\u76f4\u63a5\u66ff\u6362\u539f\u6587\u4ef6,\u4f7f\u7528-i\uff1a<\/p>\n
  seg -i 's\/text\/repalce_text\/g' file<\/code><\/pre>\n
\u79fb\u9664\u7a7a\u767d\u884c\uff1a<\/p>\n
  sed '\/^$\/d' file<\/code><\/pre>\n
\u53d8\u91cf\u8f6c\u6362<\/p>\n
\u5df2\u5339\u914d\u7684\u5b57\u7b26\u4e32\u901a\u8fc7\u6807\u8bb0&\u6765\u5f15\u7528.<\/p>\n
echo this is en example | seg 's\/\\w+\/[&]\/g'\n\n$>[this]  [is] [en] [example]<\/code><\/pre>\n
\u5b50\u4e32\u5339\u914d\u6807\u8bb0<\/p>\n
\u7b2c\u4e00\u4e2a\u5339\u914d\u7684\u62ec\u53f7\u5185\u5bb9\u4f7f\u7528\u6807\u8bb0 \\1 \u6765\u5f15\u7528<\/p>\n
  sed 's\/hello[0\u22129]\/\\1\/'<\/code><\/pre>\n
\u53cc\u5f15\u53f7\u6c42\u503c<\/p>\n
sed\u901a\u5e38\u7528\u5355\u5f15\u53f7\u6765\u5f15\u7528\uff1b\u4e5f\u53ef\u4f7f\u7528\u53cc\u5f15\u53f7\uff0c\u4f7f\u7528\u53cc\u5f15\u53f7\u540e\uff0c\u53cc\u5f15\u53f7\u4f1a\u5bf9\u8868\u8fbe\u5f0f\u6c42\u503c\uff1a<\/p>\n
  sed 's\/$var\/HLLOE\/' <\/code><\/pre>\n
\u5f53\u4f7f\u7528\u53cc\u5f15\u53f7\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u5728sed\u6837\u5f0f\u548c\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u53d8\u91cf\uff1b<\/p>\n
eg:<\/p>\n
p=patten\n\nr=replaced\n\necho "line con a patten" | sed "s\/$p\/$r\/g"\n\n$>line con a replaced<\/code><\/pre>\n
\u5176\u5b83\u793a\u4f8b<\/p>\n
\u5b57\u7b26\u4e32\u63d2\u5165\u5b57\u7b26\uff1a\u5c06\u6587\u672c\u4e2d\u6bcf\u884c\u5185\u5bb9(PEKSHA) \u8f6c\u6362\u4e3a PEK\/SHA<\/p>\n
  sed 's\/^.\\{3\\}\/&\\\/\/g' file<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
sed \u6587\u672c\u66ff\u6362\u5229\u5668 \u9996\u5904\u66ff\u6362 seg &#039<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-1557","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1557"}],"version-history":[{"count":1,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1557\/revisions"}],"predecessor-version":[{"id":1558,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1557\/revisions\/1558"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1557"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}