{"id":548,"date":"2020-06-13T05:54:09","date_gmt":"2020-06-12T21:54:09","guid":{"rendered":"https:\/\/freeapp.sbs\/blog\/?p=548"},"modified":"2025-04-01T16:44:51","modified_gmt":"2025-04-01T07:44:51","slug":"f3w92s8ez5wnl6v","status":"publish","type":"post","link":"https:\/\/eternalsphere.net\/echoes\/index.php\/2020\/06\/13\/f3w92s8ez5wnl6v\/","title":{"rendered":"Linux\u4e09\u5251\u5ba2\uff08grep\u3001sed\u3001awk\uff09"},"content":{"rendered":"

\u539f\u6587\uff1ahttps:\/\/blog.csdn.net\/sj349781478\/article\/details\/82930982\u00a0 \u00a0<\/a><\/p>\n

\u4e0b\u9762\u6240\u8bf4\u7684\u662fLinux\u4e2d\u6700\u91cd\u8981\u7684\u4e09\u4e2a\u547d\u4ee4\u5728\u4e1a\u754c\u88ab\u79f0\u4e3a\u201c\u4e09\u5251\u5ba2\u201d\uff0c\u5b83\u4eec\u662fawk,sed,grep\u3002<\/p>\n

\u6211\u4eec\u73b0\u5728\u77e5\u9053Linux\u4e0b\u4e00\u5207\u7686\u6587\u4ef6\uff0c\u5bf9Linux\u7684\u64cd\u4f5c\u5c31\u662f\u5bf9\u6587\u4ef6\u7684\u5904\u7406\uff0c\u90a3\u4e48\u600e\u4e48\u80fd\u66f4\u597d\u7684\u5904\u7406\u6587\u4ef6\u5462\uff1f\u8fd9\u5c31\u8981\u7528\u5230\u6211\u4eec\u4e0a\u9762\u7684\u4e09\u5251\u5ba2\u547d\u4ee4\u3002<\/p>\n

\u5728\u8bf4\u8fd9\u4e09\u4e2a\u547d\u4ee4\u524d\u6211\u4eec\u8981\u63d2\u5165\u4e00\u4e2a\u5c0f\u63d2\u66f2\u5c31\u662f\u201c\u6b63\u5219\u8868\u8fbe\u5f0f\u201d\u3002<\/p>\n

\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f
\n\u6240\u8c13\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6211\u4e2a\u4eba\u7406\u89e3\u5c31\u662f\u6b63\u89c4\u7684\u8868\u793a\u65b9\u6cd5\u3002\u4ed6\u662f\u7528\u7b80\u5355\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u6240\u4ee5\u6df1\u53d7\u8ba1\u7b97\u673a\u7231\u597d\u8005\u7684\u4f7f\u7528\u3002<\/p>\n

\u4e09\u5251\u5ba2\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4ec0\u4e48\u5173\u7cfb\u5462\uff1f<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0c\u4e09\u5251\u5ba2\u5c31\u662f\u666e\u901a\u7684\u547d\u4ee4\uff0c\u6709\u7684\u628a\u4ed6\u4eec\u53eb\u505a\u5de5\u5177\uff0c\u5728\u6211\u770b\u6765\u90fd\u4e00\u6837\u3002\u800c\u6b63\u5219\u8868\u8fbe\u5f0f\u5c31\u597d\u6bd4\u4e00\u4e2a\u6a21\u7248\u3002\u4e09\u5251\u5ba2\u80fd\u8bfb\u61c2\u8fd9\u4e2a\u6a21\u7248\u3002\u5c31\u8fd9\u4e48\u7b80\u5355\u3002\u6ce8\u610f\u53ea\u6709\u4e09\u5251\u5ba2\u624d\u80fd\u8bfb\u61c2\u8fd9\u4e2a\u6a21\u7248\u54e6\uff01<\/p>\n

\u73b0\u5728\u4ed6\u4eec\u7684\u5173\u7cfb\u548c\u529f\u80fd\u90fd\u641e\u61c2\u4e86\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u6765\u8ba4\u8bc6\u4e0b\u4ed6\u4eec\u600e\u4e48\u7ed3\u5408\u7684\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u4e2a\u6a21\u7248\uff0c\u8fd9\u4e2a\u6a21\u7248\u662f\u7531\u4e00\u4e9b\u666e\u901a\u5b57\u7b26\u548c\u4e00\u4e9b\u5143\u5b57\u7b26\u7ec4\u6210\u3002\u666e\u901a\u5b57\u7b26\u5305\u62ec\u5927\u5c0f\u5199\u7684\u5b57\u6bcd\u548c\u6570\u5b57\uff0c\u800c\u5143\u5b57\u7b26\u5219\u5177\u6709\u7279\u6b8a\u7684\u542b\u4e49\u3002\u5177\u4f53\u5982\u4e0b<\/p>\n

\u5143\u5b57\u7b26<\/p>\n

\u529f\u80fd<\/p>\n

\u610f\u601d<\/p>\n

^<\/p>\n

\u5339\u914d\u884c\u9996<\/p>\n

\u8868\u793a\u4ee5\u67d0\u4e2a\u5b57\u7b26\u5f00\u5934<\/p>\n

$<\/p>\n

\u5339\u914d\u884c\u5c3e<\/p>\n

\u8868\u793a\u4ee5\u67d0\u4e2a\u5b57\u7b26\u7ed3\u5c3e<\/p>\n

^$<\/p>\n

\u7a7a\u884c\u7684\u610f\u601d<\/p>\n

\u8868\u793a\u7a7a\u884c\u7684\u610f\u601d<\/p>\n

.<\/p>\n

\u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26<\/p>\n

\u8868\u793a\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26<\/p>\n

*<\/p>\n

\u5b57\u7b26*\u00a0\u00a0\u00a0\u5339\u914d0\u6216\u591a\u4e2a\u6b64\u5b57\u7b26<\/p>\n

\u8868\u793a\u91cd\u590d\u7684\u4efb\u610f\u591a\u4e2a\u5b57\u7b26<\/p>\n

\\<\/p>\n

\u5c4f\u853d\u4e00\u4e2a\u5143\u5b57\u7b26\u7684\u7279\u6b8a\u542b\u4e49<\/p>\n

\u8868\u793a\u53bb\u6389\u6709\u610f\u4e49\u7684\u5143\u5b57\u7b26\u7684\u542b\u4e49<\/p>\n

[]<\/p>\n

\u5339\u914d\u4e2d\u62ec\u53f7\u5185\u7684\u5b57\u7b26<\/p>\n

\u8868\u793a\u8fc7\u6ee4\u62ec\u53f7\u5185\u7684\u5b57\u7b26<\/p>\n

.*<\/p>\n

\u4ee3\u8868\u4efb\u610f\u591a\u4e2a\u5b57\u7b26<\/p>\n

\u5c31\u662f\u4ee3\u8868\u4efb\u610f\u591a\u4e2a\u5b57\u7b26<\/p>\n

lele\\{n\\}<\/p>\n

\u7528\u6765\u5339\u914d\u524d\u9762lele\u51fa\u73b0\u6b21\u6570\u3002n\u4e3a\u6b21\u6570<\/p>\n

\u5c31\u662f\u7edf\u8ba1\u524d\u9762lele\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n

lele\\{n,\\}<\/p>\n

\u542b\u4e49\u540c\u4e0a\uff0c\u4f46\u6b21\u6570\u6700\u5c11\u4e3an<\/p>\n

\u4ece\u529f\u80fd\u5c31\u53ef\u4ee5\u770b\u51fa<\/p>\n

lele\\{n,m\\}<\/p>\n

\u4e49\u540c\u4e0a\uff0c\u4f46lele\u51fa\u73b0\u6b21\u6570\u5728n\u4e0em\u4e4b\u95f4<\/p>\n

\u4ece\u529f\u80fd\u4e5f\u53ef\u4ee5\u770b\u51fa<\/p>\n

lele\\{n,m\\}<\/p>\n

\u4e49\u540c\u4e0a\uff0c\u4f46lele\u51fa\u73b0\u6b21\u6570\u5728n\u4e0em\u4e4b\u95f4<\/p>\n

\u4ece\u529f\u80fd\u4e5f\u53ef\u4ee5\u770b\u51fa<\/p>\n

\u4e09\u5251\u5ba2\u7684\u529f\u80fd\u975e\u5e38\u5f3a\u5927\uff0c\u4f46\u6211\u4eec\u53ea\u9700\u8981\u638c\u63e1\u4ed6\u4eec\u5206\u522b\u64c5\u957f\u7684\u9886\u57df\u5373\u53ef\uff1agrep\u64c5\u957f\u67e5\u627e\u529f\u80fd\uff0csed\u64c5\u957f\u53d6\u884c\u548c\u66ff\u6362\u3002awk\u64c5\u957f\u53d6\u5217\u3002<\/p>\n

\u4e8c\u3001grep
\n\u6587\u672c\u8fc7\u6ee4(\u6a21\u5f0f\uff1apattern)\u5de5\u5177\uff0cgrep, egrep<\/p>\n

grep [OPTIONS] PATTERN [FILE…]
\n–color=auto \u5bf9\u5339\u914d\u5230\u7684\u6587\u672c\u7740\u8272\u663e\u793a
\n-v \u663e\u793a\u4e0d\u88abpattern\u5339\u914d\u5230\u7684\u884c
\n-i \u5ffd\u7565\u5b57\u7b26\u5927\u5c0f\u5199
\n-n \u663e\u793a\u5339\u914d\u7684\u884c\u53f7
\n-c \u7edf\u8ba1\u5339\u914d\u7684\u884c\u6570
\n-o \u4ec5\u663e\u793a\u5339\u914d\u5230\u7684\u5b57\u7b26\u4e32
\n-q \u9759\u9ed8\u6a21\u5f0f\uff0c\u4e0d\u8f93\u51fa\u4efb\u4f55\u4fe1\u606f
\n-A # after, \u540e#\u884c
\n-B # before, \u524d#\u884c
\n-C # context, \u524d\u540e\u5404#\u884c
\n-e \u5b9e\u73b0\u591a\u4e2a\u9009\u9879\u95f4\u7684\u903b\u8f91or\u5173\u7cfb
\ngrep \u2013e \u2018cat \u2019 -e \u2018dog\u2019 file
\n-w \u5339\u914d\u6574\u4e2a\u5355\u8bcd
\n-E \u4f7f\u7528ERE,\u76f8\u5f53\u4e8eegrep
\n-F \u76f8\u5f53\u4e8efgrep\uff0c\u4e0d\u652f\u6301\u6b63\u5219\u8868\u8fbe\u5f0f
\n\u4e3e\u4f8b\u5b50\uff1a<\/p>\n

1\u3001\u67e5\u627e\u6587\u4ef6\u5185\u5bb9\u5305\u542broot\u7684\u884c\u6570<\/p>\n

2\u3001\u67e5\u627e\u6587\u4ef6\u5185\u5bb9\u4e0d\u5305\u542broot\u7684\u884c<\/p>\n

3\u3001\u67e5\u627e\u4ee5s\u5f00\u5934\u7684\u884c<\/p>\n

4\u3001\u67e5\u627e\u4ee5n\u7ed3\u5c3e\u7684\u884c<\/p>\n

\u4e09\u3001sed
\nsed\u662f\u4e00\u79cd\u6d41\u7f16\u8f91\u5668\uff0c\u5b83\u4e00\u6b21\u5904\u7406\u4e00\u884c\u5185\u5bb9\u3002\u5904\u7406\u65f6\uff0c\u628a\u5f53\u524d\u5904\u7406\u7684\u884c\u5b58\u50a8\u5728\u4e34\u65f6\u7f13\u51b2\u533a\u4e2d\uff0c\u79f0\u4e3a\u201c\u6a21\u5f0f\u7a7a\u95f4\u201d\uff08pattern space\uff09\uff0c\u63a5\u7740\u7528sed\u547d\u4ee4\u5904\u7406\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\uff0c\u5904\u7406\u5b8c\u6210\u540e\uff0c\u628a\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u9001\u5f80\u5c4f\u5e55\u3002\u7136\u540e\u8bfb\u5165\u4e0b\u884c\uff0c\u6267\u884c\u4e0b\u4e00\u4e2a\u5faa\u73af\u3002\u5982\u679c\u6ca1\u6709\u4f7f\u8bf8\u5982\u2018D\u2019 \u7684\u7279\u6b8a\u547d\u4ee4\uff0c\u90a3\u4f1a\u5728\u4e24\u4e2a\u5faa\u73af\u4e4b\u95f4\u6e05\u7a7a\u6a21\u5f0f\u7a7a\u95f4\uff0c\u4f46\u4e0d\u4f1a\u6e05\u7a7a\u4fdd\u7559\u7a7a\u95f4\u3002\u8fd9\u6837\u4e0d\u65ad\u91cd\u590d\uff0c\u76f4\u5230\u6587\u4ef6\u672b\u5c3e\u3002\u6587\u4ef6\u5185\u5bb9\u5e76\u6ca1\u6709\u6539\u53d8\uff0c\u9664\u975e\u4f60\u4f7f\u7528\u91cd\u5b9a\u5411\u5b58\u50a8\u8f93\u51fa\u3002<\/p>\n

sed [option]… ‘script’ inputfile
\n\u9009\u9879
\n-n \u4e0d\u8f93\u51fa\u6a21\u5f0f\u7a7a\u95f4\u5185\u5bb9\u5230\u5c4f\u5e55\uff0c\u5373\u4e0d\u81ea\u52a8\u6253\u5370
\n-e \u591a\u70b9\u7f16\u8f91
\n-f \/PATH\/SCRIPT_FILE: \u4ece\u6307\u5b9a\u6587\u4ef6\u4e2d\u8bfb\u53d6\u7f16\u8f91\u811a\u672c
\n-r \u652f\u6301\u4f7f\u7528\u6269\u5c55\u6b63\u5219\u8868\u8fbe\u5f0f
\n-i \u76f4\u63a5\u7f16\u8f91\u6587\u4ef6
\n-i.bak \u5907\u4efd\u6587\u4ef6\u5e76\u539f\u5904\u7f16\u8f91
\nscript \u5730\u5740\u5b9a\u754c
\n\u4e0d\u7ed9\u5730\u5740\uff1a\u5bf9\u5168\u6587\u8fdb\u884c\u5904\u7406
\n\u5355\u5730\u5740\uff1a
\n#: \u6307\u5b9a\u7684\u884c\uff0c$\uff1a\u6700\u540e\u4e00\u884c
\n\/pattern\/\uff1a\u88ab\u6b64\u5904\u6a21\u5f0f\u6240\u80fd\u591f\u5339\u914d\u5230\u7684\u6bcf\u4e00\u884c
\n\u5730\u5740\u8303\u56f4\uff1a
\n#,#
\n#,+#
\n\/pat1\/,\/pat2\/
\n`#,\/pat1\/
\n~\uff1a\u6b65\u8fdb
\n1~2 \u5947\u6570\u884c
\n2~2 \u5076\u6570\u884c
\n\u7f16\u8f91\u547d\u4ee4\uff1a
\nd \u5220\u9664\u6a21\u5f0f\u7a7a\u95f4\u5339\u914d\u7684\u884c\uff0c\u5e76\u7acb\u5373\u542f\u7528\u4e0b\u4e00\u8f6e\u5faa\u73af
\np \u6253\u5370\u5f53\u524d\u6a21\u5f0f\u7a7a\u95f4\u5185\u5bb9\uff0c\u8ffd\u52a0\u5230\u9ed8\u8ba4\u8f93\u51fa\u4e4b\u540e
\na [\\]text1 \u5728\u6307\u5b9a\u884c\u540e\u9762\u8ffd\u52a0\u6587\u672c,\u652f\u6301\u4f7f\u7528\\n\u5b9e\u73b0\u591a\u884c\u8ffd\u52a0
\ni [\\]text \u5728\u884c\u524d\u9762\u63d2\u5165\u6587\u672c
\nc [\\]text \u66ff\u6362\u884c\u4e3a\u5355\u884c\u6216\u591a\u884c\u6587\u672c
\nw \/path\/somefile \u4fdd\u5b58\u6a21\u5f0f\u5339\u914d\u7684\u884c\u81f3\u6307\u5b9a\u6587\u4ef6
\nr \/path\/somefile \u8bfb\u53d6\u6307\u5b9a\u6587\u4ef6\u7684\u6587\u672c\u81f3\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u5339\u914d\u5230\u7684\u884c\u540e
\n= \u4e3a\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u7684\u884c\u6253\u5370\u884c\u53f7
\n! \u6a21\u5f0f\u7a7a\u95f4\u4e2d\u5339\u914d\u884c\u53d6\u53cd\u5904\u7406
\ns\/\/\/\uff1a\u67e5\u627e\u66ff\u6362,\u652f\u6301\u4f7f\u7528\u5176\u5b83\u5206\u9694\u7b26\uff0cs@@@\uff0cs###
\n\u66ff\u6362\u6807\u8bb0\uff1a
\ng \u884c\u5185\u5168\u5c40\u66ff\u6362
\np \u663e\u793a\u66ff\u6362\u6210\u529f\u7684\u884c
\nw \/PATH\/TO\/SOMEFILE \u5c06\u66ff\u6362\u6210\u529f\u7684\u884c\u4fdd\u5b58\u81f3\u6587\u4ef6\u4e2d
\n\u4e3e\u4f8b\u5b50\uff1a<\/p>\n

1\u3001\u6253\u5370\u51fa\u6587\u4ef6\u7b2c\u4e8c\u884c<\/p>\n

2\u3001\u6253\u5370\u51fa2-5\u884c\u7684\u5185\u5bb9<\/p>\n

3\u3001\u5c06\u6587\u4ef6\u4e2d\u7684root\u5168\u90e8\u66ff\u6362\u4e3aabc<\/p>\n

\u76f4\u63a5\u4fee\u6539\u8bfb\u53d6\u7684\u6587\u4ef6\u5185\u5bb9\uff0c\u800c\u4e0d\u662f\u8f93\u51fa\u5230\u7ec8\u7aef\u3002
\ns \uff1a\u53d6\u4ee3\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fdb\u884c\u53d6\u4ee3\u7684\u5de5\u4f5c\u3002<\/p>\n

g: \u662f\u5168\u5c40\u7684\u610f\u601d\u3002\u5176\u4e2d#\u662f\u683c\u5f0f\u7b26\uff0c\u4ed6\u4e5f\u53ef\u4ee5\u662f@\u6216\u8005\u522b\u7684\/\u3002<\/p>\n

Sed\u66ff\u6362\u683c\u5f0f\u662f\uff1ased -i \u2018s\/\u8981\u66ff\u6362\u7684\u5185\u5bb9\/\u66ff\u6362\u6210\u7684\u5185\u5bb9\/g’ \u6587\u4ef6\u540d\u3002<\/p>\n

\u56db\u3001awk
\n\u62a5\u544a\u751f\u6210\u5668\uff0c\u683c\u5f0f\u5316\u6587\u672c\u8f93\u51fa,\u6709\u591a\u79cd\u7248\u672c\uff1aNew awk\uff08nawk\uff09\uff0cGNU awk\uff08 gawk\uff09<\/p>\n

awk [options] ‘program’ file\u2026
\nprogram:pattern{action statements;..}
\npattern\u90e8\u5206\u51b3\u5b9a\u52a8\u4f5c\u8bed\u53e5\u4f55\u65f6\u89e6\u53d1\u53ca\u89e6\u53d1\u4e8b\u4ef6
\nBEGIN,END
\naction statements\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u653e\u5728{}\u5185\u6307\u660e
\nprint, printf
\n\u9009\u9879\uff1a
\n-F \u6307\u660e\u8f93\u5165\u65f6\u7528\u5230\u7684\u5b57\u6bb5\u5206\u9694\u7b26
\n-v var=value \u81ea\u5b9a\u4e49\u53d8\u91cf
\n\u5206\u5272\u7b26\u3001\u57df\u548c\u8bb0\u5f55
\nawk\u6267\u884c\u65f6\uff0c\u7531\u5206\u9694\u7b26\u5206\u9694\u7684\u5b57\u6bb5\uff08\u57df\uff09\u6807\u8bb01,1,2..n\u79f0\u4e3a\u57df\u6807\u8bc6\uff0cn\u79f0\u4e3a\u57df\u6807\u8bc6\uff0c0\u4e3a\u6240\u6709\u57df\u3002
\n\u7701\u7565action\uff0c\u5219\u9ed8\u8ba4\u6267\u884c print $0 \u7684\u64cd\u4f5c\u3002
\n\u53d8\u91cf
\nFS:\u8f93\u5165\u5b57\u6bb5\u5206\u9694\u7b26\uff1bOFS\uff1a\u8f93\u51fa\u5b57\u6bb5\u5206\u9694\u7b26\uff1bRS\uff1a\u8f93\u5165\u8bb0\u5f55\u5206\u9694\u7b26\uff1bORS\uff1a\u8f93\u51fa\u8bb0\u5f55\u5206\u9694\u7b26\uff1bNF\uff1a\u5b57\u6bb5\u6570\u91cf\uff1bNR:\u8bb0\u5f55\u53f7\uff1bNFR\uff1a\u5404\u6587\u4ef6\u5206\u522b\u8ba1\u6570\uff0c\u8bb0\u5f55\u53f7\u3002FILENAME\uff1a\u5f53\u524d\u6587\u4ef6\u540d\uff1bARGC\uff1a\u547d\u4ee4\u884c\u7684\u53c2\u6570\uff1bARGV\uff1a\u6570\u7ec4\uff0c\u4fdd\u5b58\u7684\u662f\u547d\u4ee4\u884c\u6240\u7ed9\u5b9a\u7684\u5404\u53c2\u6570\u3002<\/p>\n

\u6ce8\u610f\uff1a\u4ee5\u4e0a\u90fd\u662f\u5185\u7f6e\u53d8\u91cf\uff0c\u5728\u5f15\u7528\u65f6\u4e0d\u9700\u8981\u524d\u9762\u52a0$\uff0c\u6bcf\u65b0\u5efa\u4e00\u4e2a\u53d8\u91cf\uff0c\u90fd\u9700\u8981\u52a0\u4e2a-v,\u4e0e\u53d8\u91cf\u540d\u4e4b\u95f4\u6709\u65e0\u7a7a\u683c\u90fd\u53ef\u4ee5\uff0c\u53d8\u91cf\u53ef\u4ee5\u5728\u5f15\u7528\u4e4b\u540e\u518d\u58f0\u660e\uff0c\u4f46\u90a3\u4e00\u884c\u7684\u8f93\u51fa\u4f1a\u8f93\u51fa\u7a7a\u884c\u3002<\/p>\n

printf\u547d\u4ee4
\nprintf \u201cFORMAT\u201d , item1, item2, … \u4e0d\u4f1a\u81ea\u52a8\u6362\u884c\uff0cFORMAT\u4e2d\u9700\u8981\u5206\u522b\u4e3a\u540e\u9762\u6bcf\u4e2aitem\u6307\u5b9a\u683c\u5f0f\u7b26\u3002<\/p>\n

\u683c\u5f0f\u7b26
\n\u683c\u5f0f\u7b26 item\u8868\u73b0\u5f62\u5f0f
\n%c \u663e\u793a\u5b57\u7b26\u7684ASCII\u7801
\n%d, %i \u663e\u793a\u5341\u8fdb\u5236\u6574\u6570
\n%e, %E \u663e\u793a\u79d1\u5b66\u8ba1\u6570\u6cd5\u6570\u503c
\n%f \u663e\u793a\u4e3a\u6d6e\u70b9\u6570
\n%g, %G \u4ee5\u79d1\u5b66\u8ba1\u6570\u6cd5\u6216\u6d6e\u70b9\u5f62\u5f0f\u663e\u793a\u6570\u503c
\n%s \u663e\u793a\u5b57\u7b26\u4e32
\n%u \u65e0\u7b26\u53f7\u6574\u6570
\n%% \u663e\u793a%\u81ea\u8eab
\n\u4fee\u9970\u7b26
\n\u683c\u5f0f\u7b26 item\u8868\u73b0\u5f62\u5f0f
\n#[.#] \u7b2c\u4e00\u4e2a\u6570\u5b57\u63a7\u5236\u663e\u793a\u7684\u5bbd\u5ea6\uff1b\u7b2c\u4e8c\u4e2a#\u8868\u793a\u5c0f\u6570\u70b9\u540e\u7cbe\u5ea6\uff0c%3.1f
\n– \u5de6\u5bf9\u9f50\uff08\u9ed8\u8ba4\u53f3\u5bf9\u9f50\uff09 %-15s
\n+ \u663e\u793a\u6570\u503c\u7684\u6b63\u8d1f\u7b26\u53f7 %+d
\n\u64cd\u4f5c\u7b26<\/p>\n

\u7b97\u672f\u64cd\u4f5c\u7b26\uff1ax+y, x-y, x*y, x\/y, x^y, x%y
\n-x: \u8f6c\u6362\u4e3a\u8d1f\u6570
\n+x: \u8f6c\u6362\u4e3a\u6570\u503c
\n\u6bd4\u8f83\u64cd\u4f5c\u7b26\uff1a==, !=, >, >=, <, <=
\n\u6a21\u5f0f\u5339\u914d\u7b26\uff1a~\uff1a\u5de6\u8fb9\u662f\u5426\u548c\u53f3\u8fb9\u5339\u914d\u5305\u542b !~\uff1a\u662f\u5426\u4e0d\u5339\u914d
\n\u903b\u8f91\u64cd\u4f5c\u7b26\uff1a\u4e0e&&\uff0c\u6216||\uff0c\u975e!
\n\u51fd\u6570\u8c03\u7528\uff1afunction_name(argu1, argu2, …)
\n\u6761\u4ef6\u8868\u8fbe\u5f0f\uff08\u4e09\u76ee\u8868\u8fbe\u5f0f\uff09\uff1aselector?if-true-expression:if-false-expression
\nPATTERN:\u6839\u636epattern\u6761\u4ef6\uff0c\u8fc7\u6ee4\u5339\u914d\u7684\u884c\uff0c\u518d\u505a\u5904\u7406
\n\u5982\u679c\u672a\u6307\u5b9a\uff1a\u7a7a\u6a21\u5f0f\uff0c\u5339\u914d\u6bcf\u4e00\u884c
\n\/regular expression\/\uff1a\u4ec5\u5904\u7406\u80fd\u591f\u6a21\u5f0f\u5339\u914d\u5230\u7684\u884c\uff0c\u9700\u8981\u7528\/ \/\u62ec\u8d77\u6765
\nrelational expression: \u5173\u7cfb\u8868\u8fbe\u5f0f\uff0c\u7ed3\u679c\u4e3a\u201c\u771f\u201d\u624d\u4f1a\u88ab\u5904\u7406
\nline ranges\uff1a\u884c\u8303\u56f4 startline,endline\uff1a\/pat1\/,\/pat2\/\u4e0d\u652f\u6301\u76f4\u63a5\u7ed9\u51fa\u6570\u5b57\u683c\u5f0f
\nBEGIN\/END\u6a21\u5f0f
\nawk\u63a7\u5236\u8bed\u53e5
\n{ statements;\u2026 } \u7ec4\u5408\u8bed\u53e5
\nif(condition) {statements;\u2026}
\nif(condition) {statements;\u2026} else {statements;\u2026}
\nwhile(conditon) {statments;\u2026}
\ndo {statements;\u2026} while(condition)
\nfor(expr1;expr2;expr3) {statements;\u2026}
\nbreak
\ncontinue
\ndelete array[index]
\ndelete array
\nexit
\nawk [-F|-v] ‘\u884c\u6570\u7b5b\u9009{XXX;XXX;printf \u201c\u201d,XXX,XXX}’<\/p>\n

\u4e3e\u4f8b\u5b50\uff1a<\/p>\n

1\u3001\u6253\u5370\u6587\u4ef6\u7b2c\u4e00\u5217\uff1a<\/p>\n

\u8fd9\u91cc\u7684\u5206\u9694\u7b26\u662f\u5192\u53f7 \uff0c\u7136\u540eprint\u6253\u5370\u7b2c\u4e00\u5217<\/p>\n

2\u3001\u8f93\u51fa\u5b57\u6bb51,3,6\uff0c\u4ee5\u5236\u8868\u7b26\u4f5c\u4e3a\u5206\u9694\u7b26<\/p>\n

\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n

awk\u8be6\u89e3\uff1ahttps:\/\/www.cnblogs.com\/xudong-bupt\/p\/3721210.html
\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014
\n\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3aCSDN\u535a\u4e3b\u300cJetBrains_\u5b59\u5065\u300d\u7684\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faaCC 4.0 BY-SA\u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u53ca\u672c\u58f0\u660e\u3002
\n\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/sj349781478\/java\/article\/details\/82930982<\/p>\n","protected":false},"excerpt":{"rendered":"

\u539f\u6587\uff1ahttps:\/\/blog.csdn.net\/sj349781478\/article\/details\/82930982\u00a0 \u00a0 \u4e0b\u9762\u6240\u8bf4\u7684\u662fLinux\u4e2d\u6700\u91cd\u8981\u7684\u4e09\u4e2a\u547d\u4ee4\u5728\u4e1a\u754c\u88ab\u79f0\u4e3a\u201c\u4e09\u5251\u5ba2\u201d\uff0c\u5b83\u4eec\u662fawk,sed,grep\u3002 \u6211\u4eec\u73b0\u5728\u77e5\u9053Linux\u4e0b\u4e00\u5207\u7686\u6587\u4ef6\uff0c\u5bf9Linux\u7684\u64cd\u4f5c\u5c31\u662f\u5bf9\u6587\u4ef6\u7684\u5904\u7406\uff0c\u90a3\u4e48\u600e\u4e48\u80fd\u66f4\u597d\u7684\u5904\u7406\u6587\u4ef6\u5462\uff1f\u8fd9\u5c31\u8981\u7528\u5230\u6211\u4eec\u4e0a\u9762\u7684\u4e09\u5251\u5ba2\u547d\u4ee4\u3002 \u5728\u8bf4\u8fd9\u4e09\u4e2a\u547d\u4ee4\u524d\u6211\u4eec\u8981\u63d2\u5165\u4e00\u4e2a\u5c0f\u63d2\u66f2\u5c31\u662f\u201c\u6b63\u5219\u8868\u8fbe\u5f0f\u201d\u3002 \u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f \u6240\u8c13\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6211\u4e2a\u4eba\u7406\u89e3\u5c31\u662f\u6b63\u89c4\u7684\u8868\u793a\u65b9\u6cd5\u3002\u4ed6\u662f\u7528\u7b80\u5355\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u6240\u4ee5\u6df1\u53d7\u8ba1\u7b97\u673a\u7231\u597d\u8005\u7684\u4f7f\u7528\u3002 \u4e09\u5251\u5ba2\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4ec0\u4e48\u5173\u7cfb\u5462\uff1f \u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0c\u4e09\u5251\u5ba2\u5c31\u662f\u666e\u901a\u7684\u547d\u4ee4\uff0c\u6709\u7684\u628a\u4ed6\u4eec\u53eb\u505a\u5de5\u5177\uff0c\u5728\u6211\u770b\u6765\u90fd\u4e00\u6837\u3002\u800c\u6b63\u5219\u8868\u8fbe\u5f0f\u5c31\u597d\u6bd4\u4e00\u4e2a\u6a21\u7248\u3002\u4e09\u5251\u5ba2\u80fd\u8bfb\u61c2\u8fd9\u4e2a\u6a21\u7248\u3002\u5c31\u8fd9\u4e48\u7b80\u5355\u3002\u6ce8\u610f\u53ea\u6709\u4e09\u5251\u5ba2\u624d\u80fd\u8bfb\u61c2\u8fd9\u4e2a\u6a21\u7248\u54e6\uff01 \u73b0\u5728\u4ed6\u4eec\u7684\u5173\u7cfb\u548c\u529f\u80fd\u90fd\u641e\u61c2\u4e86\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u6765\u8ba4\u8bc6\u4e0b\u4ed6\u4eec\u600e\u4e48\u7ed3\u5408\u7684\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u4e2a\u6a21\u7248\uff0c\u8fd9\u4e2a\u6a21\u7248\u662f\u7531\u4e00\u4e9b\u666e\u901a\u5b57\u7b26\u548c\u4e00\u4e9b\u5143\u5b57\u7b26\u7ec4\u6210\u3002\u666e\u901a\u5b57\u7b26\u5305\u62ec\u5927\u5c0f\u5199\u7684\u5b57\u6bcd\u548c\u6570\u5b57\uff0c\u800c\u5143\u5b57\u7b26\u5219\u5177\u6709\u7279\u6b8a\u7684\u542b\u4e49\u3002\u5177\u4f53\u5982\u4e0b \u5143\u5b57\u7b26 \u529f\u80fd \u610f\u601d ^ \u5339\u914d\u884c\u9996 \u8868\u793a\u4ee5\u67d0\u4e2a\u5b57\u7b26\u5f00\u5934 $ \u5339\u914d\u884c\u5c3e \u8868\u793a\u4ee5\u67d0\u4e2a\u5b57\u7b26\u7ed3\u5c3e ^$ \u7a7a\u884c\u7684\u610f\u601d \u8868\u793a\u7a7a\u884c\u7684\u610f\u601d . \u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26 \u8868\u793a\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26 * \u5b57\u7b26*\u00a0\u00a0\u00a0\u5339\u914d0\u6216\u591a\u4e2a\u6b64\u5b57\u7b26 \u8868\u793a\u91cd\u590d\u7684\u4efb\u610f\u591a\u4e2a\u5b57\u7b26 \\ \u5c4f\u853d\u4e00\u4e2a\u5143\u5b57\u7b26\u7684\u7279\u6b8a\u542b\u4e49 \u8868\u793a\u53bb\u6389\u6709\u610f\u4e49\u7684\u5143\u5b57\u7b26\u7684\u542b\u4e49 [] \u5339\u914d\u4e2d\u62ec\u53f7\u5185\u7684\u5b57\u7b26 \u8868\u793a\u8fc7\u6ee4\u62ec\u53f7\u5185\u7684\u5b57\u7b26 .* \u4ee3\u8868\u4efb\u610f\u591a\u4e2a\u5b57\u7b26 \u5c31\u662f\u4ee3\u8868\u4efb\u610f\u591a\u4e2a\u5b57\u7b26 lele\\{n\\} \u7528\u6765\u5339\u914d\u524d\u9762lele\u51fa\u73b0\u6b21\u6570\u3002n\u4e3a\u6b21\u6570 \u5c31\u662f\u7edf\u8ba1\u524d\u9762lele\u51fa\u73b0\u7684\u6b21\u6570 lele\\{n,\\} \u542b\u4e49\u540c\u4e0a\uff0c\u4f46\u6b21\u6570\u6700\u5c11\u4e3an \u4ece\u529f\u80fd\u5c31\u53ef\u4ee5\u770b\u51fa lele\\{n,m\\} \u4e49\u540c\u4e0a\uff0c\u4f46lele\u51fa\u73b0\u6b21\u6570\u5728n\u4e0em\u4e4b\u95f4 \u4ece\u529f\u80fd\u4e5f\u53ef\u4ee5\u770b\u51fa lele\\{n,m\\} \u4e49\u540c\u4e0a\uff0c\u4f46lele\u51fa\u73b0\u6b21\u6570\u5728n\u4e0em\u4e4b\u95f4 \u4ece\u529f\u80fd\u4e5f\u53ef\u4ee5\u770b\u51fa \u4e09\u5251\u5ba2\u7684\u529f\u80fd\u975e\u5e38\u5f3a\u5927\uff0c\u4f46\u6211\u4eec\u53ea\u9700\u8981\u638c\u63e1\u4ed6\u4eec\u5206\u522b\u64c5\u957f\u7684\u9886\u57df\u5373\u53ef\uff1agrep\u64c5\u957f\u67e5\u627e\u529f\u80fd\uff0csed\u64c5\u957f\u53d6\u884c\u548c\u66ff\u6362\u3002awk\u64c5\u957f\u53d6\u5217\u3002 …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-548","post","type-post","status-publish","format-standard","hentry","category-bdobq3k1tczue"],"_links":{"self":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/comments?post=548"}],"version-history":[{"count":1,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/548\/revisions"}],"predecessor-version":[{"id":2217,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/548\/revisions\/2217"}],"wp:attachment":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/media?parent=548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/categories?post=548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/tags?post=548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}