{"id":281,"date":"2023-04-03T22:54:36","date_gmt":"2023-04-03T14:54:36","guid":{"rendered":"https:\/\/yajtech.synology.me\/wordpress\/?p=281"},"modified":"2023-04-06T21:17:28","modified_gmt":"2023-04-06T13:17:28","slug":"sed","status":"publish","type":"post","link":"https:\/\/www.yaj.com.tw\/wordpress\/?p=281","title":{"rendered":"sed"},"content":{"rendered":"\n<p>sed \u4e3b\u8981\u7528\u6765\u6279\u91cf\u7de8\u8f2f\u6587\u4ef6\uff0c\u5feb\u901f\u7f6e\u63db\u3001\u4fee\u6539\u7b49\u529f\u80fd<\/p>\n\n\n\n<p>\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sed [-hnV][-e&lt;script>][-f&lt;script>][file]<\/pre>\n\n\n\n<p>\u53c3\u6578\u8aaa\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-e&lt;script>\u6216&#8211;expression=&lt;script> <\/li><li>-f&lt;script\u6587\u4ef6>\u6216&#8211;file=&lt;script> <\/li><li>-h\u6216&#8211;help \u3002<\/li><li>-n\u6216&#8211;quiet\u6216&#8211;silent \u986f\u793a\u8655\u7406\u5f8c\u7684\u7d50\u679c<\/li><li>-V\u6216&#8211;version \u7248\u672c\u8a0a\u606f<\/li><\/ul>\n\n\n\n<p>script \u547d\u4ee4\u8aaa\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>a \uff1a\u65b0\u589e\uff0c a \u7684\u540e\u9762\u53ef\u4ee5\u63a5\u5b57\u4e32\uff0c\u800c\u8fd9\u4e9b\u5b57\u4e32\u6703\u51fa\u73fe\u5728\u76ee\u524d\u7684\u4e0b\u4e00\u884c<\/li><li>c \uff1a\u53d6\u4ee3\uff0c c \u7684\u540e\u9762\u53ef\u4ee5\u63a5\u5b57\u4e32\uff0c\u8fd9\u4e9b\u5b57\u4e32\u53ef\u4ee5\u53d6\u4ee3 n1,n2 \u4e4b\u9593\u7684\u884c<\/li><li>d \uff1a\u5220\u9664\uff0c\u56e0\u4e3a\u662f\u5220\u9664\u554a<\/li><li>i \uff1a\u63d2\u5165\uff0c i \u7684\u540e\u9762\u53ef\u4ee5\u63a5\u5b57\u4e32\uff0c\u800c\u8fd9\u4e9b\u5b57\u4e32\u6703\u51fa\u73fe\u5728\u76ee\u524d\u7684\u4e0a\u4e00\u884c<\/li><li>p \uff1a\u8f38\u51fa\u3002\u901a\u5e38 p \u6703\u4e0e\u53c2\u6578 sed -n \u4e00\u540c\u4f7f\u7528<\/li><li>s \uff1a\u53d6\u4ee3\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fdb\u884c\u53d6\u4ee3\u7684\u5de5\u4f5c\u3002\u901a\u5e38\u642d\u914d\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/li><\/ul>\n\n\n\n<p>script \u5728\u547d\u4ee4\u9700\u4f7f\u7528\u55ae\u5f15\u865f\u5305\u8d77\u4f86\uff0c\u4e26\u5728\u547d\u4ee4\u524d\u9762\uff0c\u52a0\u4e0a\u884c\u6578\uff0c \u5e38\u898b\u7684\u67092d\uff08\u522a\u9664\u7b2c2\u884c\uff092,$d\uff08\u5f9e\u7b2c2\u884c\u5230\u6700\u5f8c\uff09, 2,5d \uff08\u522a\u96642~5\u884c\uff09\uff0c\u5176\u4ed6\u547d\u4ee4\u4ee5\u8d77\u985e\u63a8\u3002<\/p>\n\n\n\n<p>\u5e38\u7528\u7684\u53d6\u4ee3\u53ca\u6b63\u898f\u5316\u6cd5<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sed 's\/\u8981\u88ab\u53d6\u4ee3\u7684\u5b57\u4e32\/\u65b0\u7684\u5b57\u4e32\/g'<\/pre>\n\n\n\n<p>\u7bc4\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ \/sbin\/ifconfig eth0 | grep 'inet addr' | sed 's\/^.*addr:\/\/g'\n192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0<\/pre>\n\n\n\n<p> \u6b63\u898f\u5316\u6cd5 \u5e38\u7528\u7684\u5b9a\u7fa9<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>\u547d\u4ee4<\/td><td>\u8aaa\u660e<\/td><\/tr><tr><td>^word<\/td><td>\u641c\u5c0b\u7684\u5b57\u4e32(word)\u5728\u884c\u9996<\/td><\/tr><tr><td>word$<\/td><td>\u641c\u5c0b\u7684\u5b57\u4e32(word)\u5728\u884c\u5c3e<\/td><\/tr><tr><td>.<\/td><td>\u300e\u4e00\u5b9a\u6709\u4e00\u500b\u4efb\u610f\u5b57\u5143\u300f\u7684\u5b57\u7b26<\/td><\/tr><tr><td>\\<\/td><td>\u8df3\u812b\u5b57\u7b26\uff0c\u5c07\u7279\u6b8a\u7b26\u865f\u7684\u7279\u6b8a\u610f\u7fa9\u53bb\u9664<\/td><\/tr><tr><td>*<\/td><td>\u91cd\u8907\u96f6\u500b\u5230\u7121\u7aae\u591a\u500b\u5b57<\/td><\/tr><tr><td>[list]<\/td><td>\u5b57\u5143\u96c6\u5408\u7684\u5b57\uff0c\u88e1\u9762\u5217\u51fa\u60f3\u8981\u64f7\u53d6\u7684\u5b57\u5143<\/td><\/tr><tr><td>[n1-n2]<\/td><td>\u5b57\u5143\u96c6\u5408\u7684\u5b57\uff0c\u88e1\u9762\u5217\u51fa\u60f3\u8981\u64f7\u53d6\u7684\u5b57\u5143\u7bc4\u570d<\/td><\/tr><tr><td>[^list]<\/td><td>\u5b57\u5143\u96c6\u5408\u7684\u5b57\uff0c\u88e1\u9762\u5217\u51fa\u4e0d\u8981\u7684\u5b57\u4e32\u6216\u7bc4\u570d<\/td><\/tr><tr><td>\\{n,m\\}<\/td><td>\u9023\u7e8c n \u5230 m \u500b\u7684\u300e\u524d\u4e00\u500b\u5b57 \u300f<br>\u82e5\u70ba \\{n\\} \u5247\u662f\u9023\u7e8c n \u500b\u7684\u524d\u4e00\u500b\u5b57<br>\u82e5\u662f \\{n,\\} \u5247\u662f\u9023\u7e8c n \u500b\u4ee5\u4e0a\u7684\u524d\u4e00\u500b\u5b57<\/td><\/tr><tr><td>[:alnum:]<\/td><td>\u82f1\u6587\u5927\u5c0f\u5beb\u5b57\u5143\u53ca\u6578\u5b57\uff0c\u4ea6\u5373 0-9, A-Z, a-z<\/td><\/tr><tr><td>[:alpha:]<\/td><td>\u4efb\u4f55\u82f1\u6587\u5927\u5c0f\u5beb\u5b57\u5143\uff0c\u4ea6\u5373 A-Z, a-z<\/td><\/tr><tr><td>[:blank:]<\/td><td>\u7a7a\u767d\u9375\u8207 [Tab] \u6309\u9375\u5169\u8005<\/td><\/tr><tr><td>[:cntrl:]<\/td><td>\u9375\u76e4\u4e0a\u9762\u7684\u63a7\u5236\u6309\u9375\uff0c\u4ea6\u5373\u5305\u62ec CR, LF, Tab, Del.. \u7b49\u7b49<\/td><\/tr><tr><td>[:digit:]<\/td><td>\u6578\u5b57\u800c\u5df2\uff0c\u4ea6\u5373 0-9<\/td><\/tr><tr><td>[:graph:]<\/td><td>\u9664\u4e86\u7a7a\u767d\u5b57\u5143 (\u7a7a\u767d\u9375\u8207 [Tab] \u6309\u9375) \u5916\u7684\u5176\u4ed6\u6240\u6709\u6309\u9375<\/td><\/tr><tr><td>[:lower:]<\/td><td>\u5c0f\u5beb\u5b57\u5143\uff0c\u4ea6\u5373 a-z<\/td><\/tr><tr><td>[:print:]<\/td><td>\u4efb\u4f55\u53ef\u4ee5\u88ab\u5217\u5370\u51fa\u4f86\u7684\u5b57\u5143<\/td><\/tr><tr><td>[:punct:]<\/td><td>\u6a19\u9ede\u7b26\u865f (punctuation symbol)\uff0c\u4ea6\u5373\uff1a&#8221; &#8216; ? ! ; : # $&#8230;<\/td><\/tr><tr><td>[:upper:]<\/td><td>\u5927\u5beb\u5b57\u5143\uff0c\u4ea6\u5373 A-Z<\/td><\/tr><tr><td>[:space:]<\/td><td>\u4efb\u4f55\u6703\u7522\u751f\u7a7a\u767d\u7684\u5b57\u5143\uff0c\u5305\u62ec\u7a7a\u767d\u9375, [Tab], CR \u7b49\u7b49<\/td><\/tr><tr><td>[:xdigit:]<\/td><td>16 \u9032\u4f4d\u7684\u6578\u5b57\u985e\u578b\uff0c\u56e0\u6b64\u5305\u62ec\uff1a 0-9, A-F, a-f \u7684\u6578\u5b57\u8207\u5b57\u5143<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>sed \u4e3b\u8981\u7528\u6765\u6279\u91cf\u7de8\u8f2f\u6587\u4ef6\uff0c\u5feb\u901f\u7f6e\u63db\u3001\u4fee\u6539\u7b49\u529f\u80fd \u547d\u4ee4\uff1a sed [-hnV][-e&lt;script>] &#8230; <a title=\"sed\" class=\"read-more\" href=\"https:\/\/www.yaj.com.tw\/wordpress\/?p=281\" aria-label=\"\u95b1\u8b80\u3008sed\u3009\u5168\u6587\">\u95b1\u8b80\u5168\u6587<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[17],"class_list":["post-281","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-linux"],"_links":{"self":[{"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=281"}],"version-history":[{"count":3,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/281\/revisions"}],"predecessor-version":[{"id":304,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/281\/revisions\/304"}],"wp:attachment":[{"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yaj.com.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}