{"id":264,"date":"2021-07-01T21:05:12","date_gmt":"2021-07-01T13:05:12","guid":{"rendered":"https:\/\/www.buyao007.icu\/?p=264"},"modified":"2021-07-04T17:57:23","modified_gmt":"2021-07-04T09:57:23","slug":"12-linux%e5%9b%9b%e5%89%91%e5%ae%a2%e4%b9%8bgrep","status":"publish","type":"post","link":"https:\/\/www.buyao007.icu\/?p=264","title":{"rendered":"12.Linux\u56db\u5251\u5ba2\u4e4bgrep"},"content":{"rendered":"\n

\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6\u7fa4\u67b6\u6784\u4e0e\u81ea\u52a8\u5316\u8fd0\u7ef4\uff0c\u66fe\u8d1f\u8d23\u56fd\u5185\u67d0\u5927\u578b\u535a\u5ba2\u7f51\u7ad9\u8fd0\u7ef4\u5de5\u4f5c\u3002<\/p>\n\n\n\n

1.grep \u76f8\u5173\u9009\u9879<\/h2>\n\n\n\n

1.\u9009\u9879<\/p>\n\n\n\n

\u9009\u9879<\/td>\u89e3\u91ca<\/td><\/tr>
v<\/td>\u6392\u9664<\/td><\/tr>
i<\/td>\u4e0d\u533a\u5206\u5927\u5c0f\u5199<\/td><\/tr>
E<\/td>\u652f\u6301\u591a\u6761\u4ef6\u5339\u914d<\/td><\/tr>
n<\/td>\u663e\u793a\u884c\u53f7<\/td><\/tr>
A2<\/td>\u8fc7\u6ee4\u6587\u4ef6\u5185\u5bb9\u5e76\u6253\u5370\u4e0b\u4e24\u884c<\/td><\/tr>
o<\/td>\u53ea\u663e\u793a\u5339\u914d\u5230\u7684\u5185\u5bb9<\/td><\/tr>
w<\/td>\u51c6\u786e\u5339\u914d<\/td><\/tr>
R<\/td>\u9012\u5f52\u67e5\u627e<\/td><\/tr>
l\uff08\u5c0f\u5199L\uff09<\/td>\u53ea\u663e\u793a\u6587\u4ef6\u540d<\/td><\/tr>
h<\/td>\u53ea\u663e\u793a\u5185\u5bb9\uff0c\u4e0d\u663e\u793a\u6587\u4ef6\u540d<\/td><\/tr>
m<\/td>\u5339\u914d\u7684\u5185\u5bb9\uff0c\u8f93\u51fa\u51e0\u884c<\/td><\/tr>
c<\/td>\u7edf\u8ba1\u8fc7\u6ee4\u7684\u884c\u6570<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

2.\u793a\u4f8b<\/p>\n\n\n\n

\u6587\u4ef6\u51c6\u5907\n[root@test \/opt]# cat file.txt \r\nI love shell\r\nI love SHELL\r\nThis is test file\r\n-v\n[root@test \/opt]# grep -v I file.txt \r\nThis is test file\n-i\n[root@test \/opt]# grep  shell file.txt \r\nI love shell\r\n[root@test \/opt]# grep  -i shell file.txt \r\nI love shell\r\nI love SHELL\r\n-E -n\n[root@test \/opt]# grep  -nE \"shell|test\" file.txt \r\n1:I love shell\r\n3:This is test file\n\r-A\n[root@test \/opt]# grep  -A2 \"shell\" file.txt \r\nI love shell\r\nI love SHELL\r\nThis is test file\n-o\n[root@test \/opt]# grep  -o \"shell\" file.txt \r\nshell\n-w\n[root@test \/opt]# grep  -w \"shell\" file.txt \r\nI love shell<\/code><\/pre>\n\n\n\n
2.\u6b63\u5219\u8868\u8fbe\u5f0f\u4ecb\u7ecd<\/h1>\n\n\n\n
1.\u4ec0\u4e48\u662f\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n\n\n\n
\u4ee5\u7279\u5b9a\u7684\u7b26\u53f7\u8868\u793a \u4e00\u7ec4\u6570\u5b57\u6216\u5b57\u6bcd\u7684\u4e00\u79cd\u89c4\u5219\u3002<\/code><\/pre>\n\n\n\n
2.\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f<\/h2>\n\n\n\n
\u5728\u5de5\u4f5c\u4e2d\uff0c\u6211\u4eec\u65f6\u523b\u9762\u5bf9\u7740\u5927\u91cf\u7684\u65e5\u5fd7\uff0c\u7a0b\u5e8f\uff0c\u4ee5\u53ca\u547d\u4ee4\u7684\u8f93\u51fa\u3002\u8feb\u5207\u7684\u9700\u8981\u8fc7\u6ee4\u6211\u4eec\u9700\u8981\u7684\u4e00\u90e8\u5206\u5185\u5bb9\uff0c\u751a\u81f3\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u6bd4\u5982\uff1a\u73b0\u5728\u6709\u4e00\u4e2a\u4e0a\u5343\u884c\u7684\u6587\u4ef6\uff0c\u6211\u4eec\u4ec5\u9700\u8981\u5176\u4e2d\u5305\u542b\u201droot\u201d\u7684\u884c\uff0c\u600e\u4e48\u529e\uff1f\u6b64\u65f6\u5c31\u9700\u8981\u4f7f\u7528\u5230\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u89c4\u5219\u6765\u7b5b\u9009\u60f3\u8981\u7684\u5185\u5bb9\u3002<\/code><\/pre>\n\n\n\n
3.\u6b63\u5219\u8868\u8fbe\u5f0f\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n
   1.\u6b63\u5219\u8868\u8fbe\u5f0f\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5b58\u5728\u4e8e\u5404\u79cd\u7f16\u7a0b\u8bed\u8a00\u4e2d\u3002\n   2.\u6b63\u5219\u8868\u8fbe\u5f0f\u548cLinux\u591a\u7684\u901a\u914d\u7b26\u4ee5\u53ca\u7279\u6b8a\u5b57\u7b26\u662f\u6709\u533a\u522b\u7684\u3002\n   3.\u60f3\u8981\u5b66\u4f1agrep\u3001sed\u3001awk\u9996\u5148\u5c31\u8981\u9700\u8981\u5bf9\u6b63\u5219\u8868\u8fbe\u5f0f\u6709\u4e00\u5b9a\u7684\u4e86\u89e3\u3002\u53ea\u6709\u4e86\u89e3\u4e86\u89c4\u5219\uff0c\u624d\u80fd\u7075\u6d3b\u7684\u8fd0\u7528\u3002<\/code><\/pre>\n\n\n\n
3.\u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5<\/h1>\n\n\n\n
1.\u57fa\u7840\u548c\u6269\u5c55\u6b63\u5219<\/h2>\n\n\n\n
\u6b63\u5219\u8868\u8fbe\u5f0f\t\u63cf\u8ff0\n\\\t\u8f6c\u4e49\u7b26\uff0c\u5c06\u7279\u6b8a\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\uff0c\u5ffd\u7565\u5176\u7279\u6b8a\u610f\u4e49\n^\t\u5339\u914d\u884c\u9996\uff0c^\u5219\u662f\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\n$\t\u5339\u914d\u884c\u5c3e\uff0c$\u5219\u662f\u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u5c3e\n^$\t\u8868\u793a\u7a7a\u884c\n.\t\u5339\u914d\u9664\u6362\u884c\u7b26\\n\u4e4b\u5916\u7684\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\n[]\t\u5339\u914d\u5305\u542b\u5728[\u5b57\u7b26]\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\n[^]\t\u5339\u914d[^]\u4e4b\u5916\u7684\u4efb\u610f\u5b57\u7b26\n[-]\t\u5339\u914d[]\u4e2d\u6307\u5b9a\u8303\u56f4\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\n?\t\u5339\u914d\u4e4b\u524d\u7684\u98791\u6b21\u62160\u6b21\n+\t\u5339\u914d\u4e4b\u524d\u7684\u98791\u6b21\u6216\u591a\u6b21\n*\t\u5339\u914d\u4e4b\u524d\u7684\u98790\u6b21\u6216\u591a\u6b21.*\n()\t\u5339\u914d\u8868\u8fbe\u5f0f\uff0c\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u5339\u914d\u7684\u5b57\u7b26\u4e32\n{n}\t\u5339\u914d\u4e4b\u524d\u7684\u9879n\u6b21\uff0cn\u662f\u53ef\u4ee5\u4e3a0\u7684\u6b63\u6574\u6570\n{n,}\t\u4e4b\u524d\u7684\u9879\u81f3\u5c11\u5339\u914dn\u6b21\n{n,m}\t\u6307\u5b9a\u4e4b\u524d\u7684\u9879\u81f3\u5c11\u5339\u914dn\u6b21\uff0c\u6700\u591a\u5339\u914dm\u6b21\uff0cn<=m\n|\t\u4ea4\u66ff\u5339\u914d|\u4e24\u8fb9\u7684\u4efb\u610f\u4e00\u9879ab(c|d)\u5339\u914dabc\u6216abd\n<\/code><\/pre>\n\n\n\n
2.\u7279\u6b8a\u7b26\u53f7<\/h2>\n\n\n\n
[[:space:]]<\/td>\u7a7a\u683c<\/td><\/tr>
[[:digit:]]<\/td>[0-9]<\/td><\/tr>
[[:lower:]]<\/td>[a-z]<\/td><\/tr>
[[:upper:]]<\/td>[A-Z]<\/td><\/tr>
[[:alpha:]]<\/td>[a-Z]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
3.perl\u6b63\u5219<\/h2>\n\n\n\n
3.1\u96f6\u5bbd\u65ad\u8a00<\/p>\n\n\n\n
(?=\u8981\u5339\u914d\u7684\u5185\u5bb9)<\/td>\u96f6\u5bbd\u5ea6\u6b63\u9884\u6d4b\u5148\u884c\u65ad\u8a00\uff08\u5411\u524d\u770b\uff09<\/td><\/tr>
(?<=\u8981\u5339\u914d\u7684\u5185\u5bb9)<\/td>\u96f6\u5bbd\u5ea6\u6b63\u56de\u987e\u540e\u53d1\u65ad\u8a00\uff08\u5411\u540e\u770b\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
[root@sfy ~]# uptime \n17:51:20 up 62 days, 18:46,  1 user,  load average: 0.00, 0.01, 0.05\n[root@sfy ~]# uptime |grep -Po '(?<=up).*(?=,.*user)'\n62 days, 18:46<\/code><\/pre>\n\n\n\n
3.2 perl \u7b26\u53f7<\/p>\n\n\n\n
\\d<\/td>[0-9]<\/td><\/tr>
\\D<\/td>[^0-9]<\/td><\/tr>
\\s<\/td>\u7a7a\u5b57\u7b26 \u7a7a\u683c tab \u8fde\u7eed\u7684\u7a7a\u683c \u8fde\u7eedtab [\\ \\t\\r\\n\\f]<\/td><\/tr>
\\w<\/td>[0-9a-zA-Z_]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
4.\u51c6\u5907\u5982\u4e0b\u6587\u4ef6\uff0c\u7136\u540e\u8fdb\u884c\u6b63\u5219\u8868\u8fbe\u5f0f\u89c4\u5219\u9a8c\u8bc1<\/h2>\n\n\n\n
I am sunfuyang!\nI like linux.\ntest\n\nI like badminton ball ,billiard ball and chinese chess!\nmy blog is http:\/\/www.buyao007.icu\nour site is http:\/\/www.buyao007.icu\nmy qq num is 2195802440\nnot 2795802440\n<\/code><\/pre>\n\n\n\n
1.\u8fc7\u6ee4\u4ee5m\u5f00\u5934\u7684\u884c<\/strong>\n[root@test ~]# grep \"^m\" test.txt\n2.\u6392\u9664\u7a7a\u884c\uff0c\u5e76\u6253\u5370\u884c\u53f7<\/strong>\n[root@test ~]# grep -nv \"^$\" test.txt\n3.\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\uff0c\u4e0d\u5305\u62ec\u7a7a\u884c<\/strong>\n[root@test ~]# grep  \".\" test.txt\n4.\u5339\u914d\u6240\u6709\u5185\u5bb9<\/strong>\n[root@test ~]# grep  \".*\" test.txt\n5.\u5339\u914d\u4ee5\u70b9\u7ed3\u5c3e\u7684<\/strong>\n[root@test ~]# grep  \"\\.$\" test.txt\n6.\u5339\u914d\u6709a\u6216b\u6216c\u7684\u884c<\/strong>\n[root@test ~]# grep  \"[a-c]\" test.txt\n7.\u5339\u914d\u6570\u5b57\u6240\u5728\u7684\u884c<\/strong>\n[root@test ~]# egrep  \"[0-9]\" test.txt\n8.\u5339\u914d\u6240\u6709\u5c0f\u5199\u5b57\u6bcd<\/strong>\n[root@test ~]# egrep  \"[a-z]\" test.txt<\/code><\/pre>\n\n\n\n
4.grep\u6b63\u5219\u8868\u8fbe\u5f0f\u793a\u4f8b<\/h1>\n\n\n\n
1.\u63d0\u53d6eth0\u7684IP\u5730\u5740<\/h2>\n\n\n\n
[root@test ~]# ifconfig eth0|grep \"inet \"|grep -Eo \"[0-9.]{1,}\"|head -1\n10.0.0.100\n[root@test ~]# ifconfig eth0 | grep \"^.*inet \" | egrep -o \"[[:digit:]]{2,3}\\.[[:digit:]]{1,3}\\.[[:digit:]]{1,3}\\.[[:digit:]]{1,3}\"|head -1\n10.0.0.100\n<\/code><\/pre>\n\n\n\n
2.\u6392\u9664nginx\u65e5\u5fd7\u6587\u4ef6\u7684\u7a7a\u884c\u548c#\u53f7\u5f00\u5934\u7684\u884c<\/h2>\n\n\n\n
[root@test ~]# egrep -v  \"(^#|^$|^[ ]+#)\" \/etc\/nginx\/nginx.conf<\/code><\/pre>\n\n\n\n
3.\u5339\u914dnginx\u65e5\u5fd7\u4e2d\u7684http1.0\u548chttp1.1 http2.1 http2.0<\/h2>\n\n\n\n
[root@sfy ~]# egrep -o \"HTTP\/[123].(0|1)\" \/var\/log\/nginx\/access.log<\/code><\/pre>\n\n\n\n
4.\u5339\u914dzabbix_agentd.conf\u914d\u7f6e\u6587\u4ef6\u4e2d\u6240\u6709\u5df2\u542f\u7528\u7684\u914d\u7f6e<\/h2>\n\n\n\n
[root@test ~]# egrep -v \"^#|^$\" zabbix_agentd.conf\n[root@test ~]# grep '^[a-Z]' zabbix_agentd.conf<\/code><\/pre>\n\n\n\n
5.\u5339\u914d133\u3001152\u3001166\u3001135\u5f00\u5934\u7684\u624b\u673a\u53f7\u7801<\/h2>\n\n\n\n
[root@test \/server\/script]# cat ponum.sh\n#!\/bin\/bash\nwhile true\ndo\n\tread -p \"\u8bf7\u8f93\u5165\u4f60\u7684\u624b\u673a\u53f7:\"  po\n\tif [[ ! $po =~ ^[0-9]{11}$ ]];then\n\t\techo \u624b\u673a\u53f7\u4e0d\u5408\u6cd5\uff0c\u8bf7\u91cd\u65b0\u8f93\u5165\n\t\tcontinue\n\tfi\n\tif [[ $po =~ ^(133|152|166|135)[0-9]{8}$ ]];then\n\t\techo \u624b\u673a\u53f7\u9a8c\u8bc1\u6210\u529f\n\telse\n\t\techo \u624b\u673a\u53f7\u5728\u7cfb\u7edf\u4e2d\u65e0\u6cd5\u641c\u7d22\u5230\n\t\tbreak\n\tfi\ndone<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5b59\u5bcc\u9633\uff0c \u6c5f\u6e56\u4eba\u79f0\u6ca1\u4eba\u79f0\u3002\u591a\u5e74\u4e92\u8054\u7f51\u8fd0\u7ef4\u5de5\u4f5c\u7ecf\u9a8c\uff0c\u66fe\u8d1f\u8d23\u8fc7\u5b59\u5e03\u65af\u5927\u89c4\u6a21\u96c6\u7fa4\u67b6\u6784\u81ea\u52a8\u5316\u8fd0\u7ef4\u7ba1\u7406\u5de5\u4f5c\u3002\u64c5\u957fWeb\u96c6 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,15],"tags":[],"_links":{"self":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/264"}],"collection":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=264"}],"version-history":[{"count":5,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/264\/revisions"}],"predecessor-version":[{"id":275,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=\/wp\/v2\/posts\/264\/revisions\/275"}],"wp:attachment":[{"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.buyao007.icu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}