{"id":1697,"date":"2013-09-04T16:02:13","date_gmt":"2013-09-04T08:02:13","guid":{"rendered":"http:\/\/www.huzs.top\/?p=1697"},"modified":"2013-09-04T16:02:13","modified_gmt":"2013-09-04T08:02:13","slug":"linux-sed-%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.huzs.top\/?p=1697","title":{"rendered":"linux sed \u7528\u6cd5"},"content":{"rendered":"

1.\u00a0Sed\u7b80\u4ecb<\/strong><\/p>\n

sed \u662f\u4e00\u79cd\u5728\u7ebf\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\u00a0space\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\u63a5\u7740\u5904\u7406\u4e0b\u4e00\u884c\uff0c\u8fd9\u6837\u4e0d\u65ad\u91cd\u590d\uff0c\u76f4\u5230\u6587\u4ef6\u672b\u5c3e\u3002\u6587\u4ef6\u5185\u5bb9\u5e76\u6ca1\u6709\u00a0\u6539\u53d8\uff0c\u9664\u975e\u4f60\u4f7f\u7528\u91cd\u5b9a\u5411\u5b58\u50a8\u8f93 \u51fa\u3002Sed\u4e3b\u8981\u7528\u6765\u81ea\u52a8\u7f16\u8f91\u4e00\u4e2a\u6216\u591a\u4e2a\u6587\u4ef6\uff1b\u7b80\u5316\u5bf9\u6587\u4ef6\u7684\u53cd\u590d\u64cd\u4f5c\uff1b\u7f16\u5199\u8f6c\u6362\u7a0b\u5e8f\u7b49\u3002\u4ee5\u4e0b\u4ecb\u7ecd\u7684\u662fGnu\u7248\u672c\u7684Sed\u00a03.02\u3002<\/p>\n

\u65b9\u6cd51\uff1a
sed\u00a0-i\u00a0‘s\/\u88ab\u66ff\u6362\u7684\u5185\u5bb9\/\u8981\u66ff\u6362\u6210\u7684\u5185\u5bb9\/’\u00a0file<\/p>\n

\u65b9\u6cd52\uff1a
sed\u00a0‘s\/\u88ab\u66ff\u6362\u7684\u5185\u5bb9\/\u8981\u66ff\u6362\u6210\u7684\u5185\u5bb9\/g’\u00a0file\u00a0>\u00a0file.out
mv\u00a0file.out\u00a0file<\/p>\n

\u8fd9\u91cc\u6ce8\u610f\uff1a
\u4e0d\u80fd\u8fd9\u6837\u505a\uff1a
sed\u00a0‘s\/\u88ab\u66ff\u6362\u7684\u5185\u5bb9\/\u8981\u66ff\u6362\u6210\u7684\u5185\u5bb9\/g’\u00a0file\u00a0>\u00a0file
\u8fd9\u6837\u53ea\u4f1a\u6e05\u7a7a\u6e90\u6587\u4ef6\u3002
2.\u00a0\u5b9a\u5740<\/strong><\/p>\n

\u53ef\u4ee5\u901a\u8fc7\u5b9a\u5740\u6765\u5b9a\u4f4d\u4f60\u6240\u5e0c\u671b\u7f16\u8f91\u7684\u884c\uff0c\u8be5\u5730\u5740\u7528\u6570\u5b57\u6784\u6210\uff0c\u7528\u9017\u53f7\u5206\u9694\u7684\u4e24\u4e2a\u884c\u6570\u8868\u793a\u4ee5\u8fd9\u4e24\u884c\u4e3a\u8d77\u6b62\u7684\u884c\u7684\u8303\u56f4\uff08\u5305\u62ec\u884c\u6570\u8868\u793a\u7684\u90a3\u4e24\u884c\uff09\u3002\u59821\uff0c3\u8868\u793a1\uff0c2\uff0c3\u884c\uff0c\u7f8e\u5143\u7b26\u53f7($)\u8868\u793a\u6700\u540e\u4e00\u884c\u3002\u8303\u56f4\u53ef\u4ee5\u901a\u8fc7\u6570\u636e\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u6216\u8005\u4e8c\u8005\u7ed3\u5408\u7684\u65b9\u5f0f\u786e\u5b9a\u00a0\u3002
3.\u00a0Sed\u547d\u4ee4<\/strong><\/p>\n

\u8c03\u7528sed\u547d\u4ee4\u6709\u4e24\u79cd\u5f62\u5f0f\uff1a
sed\u00a0[options]\u00a0‘command’\u00a0file(s)<\/p>\n

sed\u00a0[options]\u00a0-f\u00a0scriptfile\u00a0file(s)
<
a\\
\u5728\u5f53\u524d\u884c\u540e\u9762\u52a0\u5165\u4e00\u884c\u6587\u672c\u3002<\/p>\n

b\u00a0lable
\u5206\u652f\u5230\u811a\u672c\u4e2d\u5e26\u6709\u6807\u8bb0\u7684\u5730\u65b9\uff0c\u5982\u679c\u5206\u652f\u4e0d\u5b58\u5728\u5219\u5206\u652f\u5230\u811a\u672c\u7684\u672b\u5c3e\u3002<\/p>\n

c\\
\u7528\u65b0\u7684\u6587\u672c\u6539\u53d8\u672c\u884c\u7684\u6587\u672c\u3002<\/p>\n

d
\u4ece\u6a21\u677f\u5757\uff08Pattern\u00a0space\uff09\u4f4d\u7f6e\u5220\u9664\u884c\u3002<\/p>\n

D
\u5220\u9664\u6a21\u677f\u5757\u7684\u7b2c\u4e00\u884c\u3002<\/p>\n

i\\
\u5728\u5f53\u524d\u884c\u4e0a\u9762\u63d2\u5165\u6587\u672c\u3002<\/p>\n

h
\u62f7\u8d1d\u6a21\u677f\u5757\u7684\u5185\u5bb9\u5230\u5185\u5b58\u4e2d\u7684\u7f13\u51b2\u533a\u3002<\/p>\n

H
\u8ffd\u52a0\u6a21\u677f\u5757\u7684\u5185\u5bb9\u5230\u5185\u5b58\u4e2d\u7684\u7f13\u51b2\u533a<\/p>\n

g
\u83b7\u5f97\u5185\u5b58\u7f13\u51b2\u533a\u7684\u5185\u5bb9\uff0c\u5e76\u66ff\u4ee3\u5f53\u524d\u6a21\u677f\u5757\u4e2d\u7684\u6587\u672c\u3002<\/p>\n

G
\u83b7\u5f97\u5185\u5b58\u7f13\u51b2\u533a\u7684\u5185\u5bb9\uff0c\u5e76\u8ffd\u52a0\u5230\u5f53\u524d\u6a21\u677f\u5757\u6587\u672c\u7684\u540e\u9762\u3002<\/p>\n

l
\u5217\u8868\u4e0d\u80fd\u6253\u5370\u5b57\u7b26\u7684\u6e05\u5355\u3002<\/p>\n

n
\u8bfb\u53d6\u4e0b\u4e00\u4e2a\u8f93\u5165\u884c\uff0c\u7528\u4e0b\u4e00\u4e2a\u547d\u4ee4\u5904\u7406\u65b0\u7684\u884c\u800c\u4e0d\u662f\u7528\u7b2c\u4e00\u4e2a\u547d\u4ee4\u3002<\/p>\n

N
\u8ffd\u52a0\u4e0b\u4e00\u4e2a\u8f93\u5165\u884c\u5230\u6a21\u677f\u5757\u540e\u9762\u5e76\u5728\u4e8c\u8005\u95f4\u5d4c\u5165\u4e00\u4e2a\u65b0\u884c\uff0c\u6539\u53d8\u5f53\u524d\u884c\u53f7\u7801\u3002<\/p>\n

p
\u6253\u5370\u6a21\u677f\u5757\u7684\u884c\u3002<\/p>\n

P\uff08\u5927\u5199\uff09
\u6253\u5370\u6a21\u677f\u5757\u7684\u7b2c\u4e00\u884c\u3002<\/p>\n

q
\u9000\u51faSed\u3002<\/p>\n

r\u00a0file
\u4ecefile\u4e2d\u8bfb\u884c\u3002<\/p>\n

t\u00a0label
if\u5206\u652f\uff0c\u4ece\u6700\u540e\u4e00\u884c\u5f00\u59cb\uff0c\u6761\u4ef6\u4e00\u65e6\u6ee1\u8db3\u6216\u8005T\uff0ct\u547d\u4ee4\uff0c\u5c06\u5bfc\u81f4\u5206\u652f\u5230\u5e26\u6709\u6807\u53f7\u7684\u547d\u4ee4\u5904\uff0c\u6216\u8005\u5230\u811a\u672c\u7684\u672b\u5c3e\u3002<\/p>\n

T\u00a0label
\u9519\u8bef\u5206\u652f\uff0c\u4ece\u6700\u540e\u4e00\u884c\u5f00\u59cb\uff0c\u4e00\u65e6\u53d1\u751f\u9519\u8bef\u6216\u8005T\uff0ct\u547d\u4ee4\uff0c\u5c06\u5bfc\u81f4\u5206\u652f\u5230\u5e26\u6709\u6807\u53f7\u7684\u547d\u4ee4\u5904\uff0c\u6216\u8005\u5230\u811a\u672c\u7684\u672b\u5c3e\u3002<\/p>\n

w\u00a0file
\u5199\u5e76\u8ffd\u52a0\u6a21\u677f\u5757\u5230file\u672b\u5c3e\u3002<\/p>\n

W\u00a0file
\u5199\u5e76\u8ffd\u52a0\u6a21\u677f\u5757\u7684\u7b2c\u4e00\u884c\u5230file\u672b\u5c3e\u3002<\/p>\n

!
\u8868\u793a\u540e\u9762\u7684\u547d\u4ee4\u5bf9\u6240\u6709\u6ca1\u6709\u88ab\u9009\u5b9a\u7684\u884c\u53d1\u751f\u4f5c\u7528\u3002<\/p>\n

s\/re\/string
\u7528string\u66ff\u6362\u6b63\u5219\u8868\u8fbe\u5f0fre\u3002<\/p>\n

=
\u6253\u5370\u5f53\u524d\u884c\u53f7\u7801\u3002<\/p>\n

#
\u628a\u6ce8\u91ca\u6269\u5c55\u5230\u4e0b\u4e00\u4e2a\u6362\u884c\u7b26\u4ee5\u524d\u3002<\/p>\n

\u4ee5\u4e0b\u7684\u662f\u66ff\u6362\u6807\u8bb0<\/p>\n

g\u8868\u793a\u884c\u5185\u5168\u9762\u66ff\u6362\u3002<\/p>\n

p\u8868\u793a\u6253\u5370\u884c\u3002<\/p>\n

w\u8868\u793a\u628a\u884c\u5199\u5165\u4e00\u4e2a\u6587\u4ef6\u3002<\/p>\n

x\u8868\u793a\u4e92\u6362\u6a21\u677f\u5757\u4e2d\u7684\u6587\u672c\u548c\u7f13\u51b2\u533a\u4e2d\u7684\u6587\u672c\u3002<\/p>\n

y\u8868\u793a\u628a\u4e00\u4e2a\u5b57\u7b26\u7ffb\u8bd1\u4e3a\u53e6\u5916\u7684\u5b57\u7b26\uff08\u4f46\u662f\u4e0d\u7528\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f\uff09
4.\u00a0\u9009\u9879<\/strong>
<
-e\u00a0command,\u00a0–expression=command
\u5141\u8bb8\u591a\u53f0\u7f16\u8f91\u3002<\/p>\n

-h,\u00a0–help
\u6253\u5370\u5e2e\u52a9\uff0c\u5e76\u663e\u793abug\u5217\u8868\u7684\u5730\u5740\u3002<\/p>\n

-n,\u00a0–quiet,\u00a0–silent
\u53d6\u6d88\u9ed8\u8ba4\u8f93\u51fa\u3002<\/p>\n

-f,\u00a0–filer=script-file
\u5f15\u5bfcsed\u811a\u672c\u6587\u4ef6\u540d\u3002<\/p>\n

-V,\u00a0–version
\u6253\u5370\u7248\u672c\u548c\u7248\u6743\u4fe1\u606f\u3002
5.\u00a0\u5143\u5b57\u7b26\u96c6<\/strong>
<
^
\u951a\u5b9a\u884c\u7684\u5f00\u59cb\u00a0\u5982\uff1a\/^sed\/\u5339\u914d\u6240\u6709\u4ee5sed\u5f00\u5934\u7684\u884c\u3002<\/p>\n

$
\u951a\u5b9a\u884c\u7684\u7ed3\u675f\u00a0\u5982\uff1a\/sed$\/\u5339\u914d\u6240\u6709\u4ee5sed\u7ed3\u5c3e\u7684\u884c\u3002<\/p>\n

.
\u5339\u914d\u4e00\u4e2a\u975e\u6362\u884c\u7b26\u7684\u5b57\u7b26\u00a0\u5982\uff1a\/s.d\/\u5339\u914ds\u540e\u63a5\u4e00\u4e2a\u4efb\u610f\u5b57\u7b26\uff0c\u7136\u540e\u662fd\u3002<\/p>\n

*
\u5339\u914d\u96f6\u6216\u591a\u4e2a\u5b57\u7b26\u00a0\u5982\uff1a\/*sed\/\u5339\u914d\u6240\u6709\u6a21\u677f\u662f\u4e00\u4e2a\u6216\u591a\u4e2a\u7a7a\u683c\u540e\u7d27\u8ddfsed\u7684\u884c\u3002<\/p>\n

[]
\u5339\u914d\u4e00\u4e2a\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5b57\u7b26\uff0c\u5982\/[Ss]ed\/\u5339\u914dsed\u548cSed\u3002<\/p>\n

[^]
\u5339\u914d\u4e00\u4e2a\u4e0d\u5728\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5b57\u7b26\uff0c\u5982\uff1a\/[^A-RT-Z]ed\/\u5339\u914d\u4e0d\u5305\u542bA-R\u548cT-Z\u7684\u4e00\u4e2a\u5b57\u6bcd\u5f00\u5934\uff0c\u7d27\u8ddfed\u7684\u884c\u3002<\/p>\n

\\(..\\)
\u4fdd\u5b58\u5339\u914d\u7684\u5b57\u7b26\uff0c\u5982s\/\\(love\\)able\/\\1rs\uff0cloveable\u88ab\u66ff\u6362\u6210lovers\u3002<\/p>\n

&
\u4fdd\u5b58\u641c\u7d22\u5b57\u7b26\u7528\u6765\u66ff\u6362\u5176\u4ed6\u5b57\u7b26\uff0c\u5982s\/love\/**&**\/\uff0clove\u8fd9\u6210**love**\u3002<\/p>\n

\\<
\u951a\u5b9a\u5355\u8bcd\u7684\u5f00\u59cb\uff0c\u5982:\/\\<\/p>\n

\\>
\u951a\u5b9a\u5355\u8bcd\u7684\u7ed3\u675f\uff0c\u5982\/love\\>\/\u5339\u914d\u5305\u542b\u4ee5love\u7ed3\u5c3e\u7684\u5355\u8bcd\u7684\u884c\u3002<\/p>\n

x\\{m\\}
\u91cd\u590d\u5b57\u7b26x\uff0cm\u6b21\uff0c\u5982\uff1a\/0\\{5\\}\/\u5339\u914d\u5305\u542b5\u4e2ao\u7684\u884c\u3002<\/p>\n

x\\{m,\\}
\u91cd\u590d\u5b57\u7b26x,\u81f3\u5c11m\u6b21\uff0c\u5982\uff1a\/o\\{5,\\}\/\u5339\u914d\u81f3\u5c11\u67095\u4e2ao\u7684\u884c\u3002<\/p>\n

x\\{m,n\\}
\u91cd\u590d\u5b57\u7b26x\uff0c\u81f3\u5c11m\u6b21\uff0c\u4e0d\u591a\u4e8en\u6b21\uff0c\u5982\uff1a\/o\\{5,10\\}\/\u5339\u914d5–10\u4e2ao\u7684\u884c\u3002<\/p>\n

6.\u00a0\u5b9e\u4f8b<\/strong>
\u5220\u9664\uff1ad\u547d\u4ee4
$\u00a0sed\u00a0‘2d’\u00a0example—–\u5220\u9664example\u6587\u4ef6\u7684\u7b2c\u4e8c\u884c\u3002<\/p>\n

$\u00a0sed\u00a0‘2,$d’\u00a0example—–\u5220\u9664example\u6587\u4ef6\u7684\u7b2c\u4e8c\u884c\u5230\u672b\u5c3e\u6240\u6709\u884c\u3002<\/p>\n

$\u00a0sed\u00a0‘$d’\u00a0example—–\u5220\u9664example\u6587\u4ef6\u7684\u6700\u540e\u4e00\u884c\u3002<\/p>\n

$\u00a0sed\u00a0‘\/test\/’d\u00a0example—–\u5220\u9664example\u6587\u4ef6\u6240\u6709\u5305\u542btest\u7684\u884c\u3002<\/p>\n

\u66ff\u6362\uff1as\u547d\u4ee4
$\u00a0sed\u00a0‘s\/test\/mytest\/g’\u00a0example—–\u5728\u6574\u884c\u8303\u56f4\u5185\u628atest\u66ff\u6362\u4e3amytest\u3002\u5982\u679c\u6ca1\u6709g\u6807\u8bb0\uff0c\u5219\u53ea\u6709\u6bcf\u884c\u7b2c\u4e00\u4e2a\u5339\u914d\u7684test\u88ab\u66ff\u6362\u6210mytest\u3002<\/p>\n

$\u00a0sed\u00a0-n\u00a0‘s\/^test\/mytest\/p’\u00a0example—–(-n)\u9009\u9879\u548cp\u6807\u5fd7\u4e00\u8d77\u4f7f\u7528\u8868\u793a\u53ea\u6253\u5370\u90a3\u4e9b\u53d1\u751f\u66ff\u6362\u7684\u884c\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u67d0\u4e00\u884c\u5f00\u5934\u7684test\u88ab\u66ff\u6362\u6210mytest\uff0c\u5c31\u6253\u5370\u5b83\u3002<\/p>\n

$\u00a0sed\u00a0‘s\/^192.168.0.1 \/&localhost\/’\u00a0example—–&\u7b26\u53f7\u8868\u793a\u66ff\u6362\u6362\u5b57\u7b26\u4e32\u4e2d\u88ab\u627e\u5230\u7684\u90e8\u4efd\u3002\u6240\u6709\u4ee5192.168.0.1\u5f00\u5934\u7684\u884c\u90fd \u4f1a\u88ab\u66ff\u6362\u6210\u5b83\u81ea\u5df2\u52a0\u00a0localhost\uff0c\u53d8\u6210192.168.0.1localhost\u3002<\/p>\n

$\u00a0sed\u00a0-n\u00a0‘s\/\\(love\\)able\/\\1rs\/p’\u00a0example—–love\u88ab\u6807\u8bb0\u4e3a1\uff0c\u6240\u6709loveable\u4f1a\u88ab\u66ff\u6362\u6210lovers\uff0c\u800c\u4e14\u66ff\u6362\u7684\u884c\u4f1a\u88ab\u6253\u5370\u51fa\u6765\u3002<\/p>\n

$\u00a0sed\u00a0‘s#10#100#g’\u00a0example—–\u4e0d\u8bba\u4ec0\u4e48\u5b57\u7b26\uff0c\u7d27\u8ddf\u7740s\u547d\u4ee4\u7684\u90fd\u88ab\u8ba4\u4e3a\u662f\u65b0\u7684\u5206\u9694\u7b26\uff0c\u6240\u4ee5\uff0c\u201c#\u201d\u5728\u8fd9\u91cc\u662f\u5206\u9694\u7b26\uff0c\u4ee3\u66ff\u4e86\u9ed8\u8ba4\u7684\u201c\/\u201d\u5206\u9694\u7b26\u3002\u8868\u793a\u628a\u6240\u670910\u66ff\u6362\u6210100\u3002<\/p>\n

\u9009\u5b9a\u884c\u7684\u8303\u56f4\uff1a\u9017\u53f7
$\u00a0sed\u00a0-n\u00a0‘\/test\/,\/check\/p’\u00a0example—–\u6240\u6709\u5728\u6a21\u677ftest\u548ccheck\u6240\u786e\u5b9a\u7684\u8303\u56f4\u5185\u7684\u884c\u90fd\u88ab\u6253\u5370\u3002<\/p>\n

$\u00a0sed\u00a0-n\u00a0‘5,\/^test\/p’\u00a0example—–\u6253\u5370\u4ece\u7b2c\u4e94\u884c\u5f00\u59cb\u5230\u7b2c\u4e00\u4e2a\u5305\u542b\u4ee5test\u5f00\u59cb\u7684\u884c\u4e4b\u95f4\u7684\u6240\u6709\u884c\u3002<\/p>\n

$\u00a0sed\u00a0‘\/test\/,\/check\/s\/$\/sed\u00a0test\/’\u00a0example—–\u5bf9\u4e8e\u6a21\u677ftest\u548cwest\u4e4b\u95f4\u7684\u884c\uff0c\u6bcf\u884c\u7684\u672b\u5c3e\u7528\u5b57\u7b26\u4e32sed\u00a0test\u66ff\u6362\u3002<\/p>\n

\u591a\u70b9\u7f16\u8f91\uff1ae\u547d\u4ee4
$\u00a0sed\u00a0-e\u00a0‘1,5d’\u00a0-e\u00a0‘s\/test \/check\/’\u00a0example—–(-e)\u9009\u9879\u5141\u8bb8\u5728\u540c\u4e00\u884c\u91cc\u6267\u884c\u591a\u6761\u547d\u4ee4\u3002\u5982\u4f8b\u5b50\u6240\u793a\uff0c\u7b2c\u4e00\u6761\u547d\u4ee4\u5220\u96641\u81f35\u884c\uff0c\u7b2c\u4e8c\u6761\u547d\u4ee4\u7528check\u66ff\u6362 test\u3002\u547d\u4ee4\u7684\u6267\u00a0\u884c\u987a\u5e8f\u5bf9\u7ed3\u679c\u6709\u5f71\u54cd\u3002\u5982\u679c\u4e24\u4e2a\u547d\u4ee4\u90fd\u662f\u66ff\u6362\u547d\u4ee4\uff0c\u90a3\u4e48\u7b2c\u4e00\u4e2a\u66ff\u6362\u547d\u4ee4\u5c06\u5f71\u54cd\u7b2c\u4e8c\u4e2a\u66ff\u6362\u547d\u4ee4\u7684\u7ed3\u679c\u3002<\/p>\n

$\u00a0sed\u00a0–expression=’s\/test\/check\/’\u00a0–expression=’\/love\/d’\u00a0example—–\u4e00\u4e2a\u6bd4-e\u66f4\u597d\u7684\u547d\u4ee4\u662f–expression\u3002\u5b83\u80fd\u7ed9sed\u8868\u8fbe\u5f0f\u8d4b\u503c\u3002<\/p>\n

\u4ece\u6587\u4ef6\u8bfb\u5165\uff1ar\u547d\u4ee4
$\u00a0sed\u00a0‘\/test\/r\u00a0file’\u00a0example—–file\u91cc\u7684\u5185\u5bb9\u88ab\u8bfb\u8fdb\u6765\uff0c\u663e\u793a\u5728\u4e0etest\u5339\u914d\u7684\u884c\u540e\u9762\uff0c\u5982\u679c\u5339\u914d\u591a\u884c\uff0c\u5219file\u7684\u5185\u5bb9\u5c06\u663e\u793a\u5728\u6240\u6709\u5339\u914d\u884c\u7684\u4e0b\u9762\u3002<\/p>\n

\u5199\u5165\u6587\u4ef6\uff1aw\u547d\u4ee4
$\u00a0sed\u00a0-n\u00a0‘\/test\/w\u00a0file’\u00a0example—–\u5728example\u4e2d\u6240\u6709\u5305\u542btest\u7684\u884c\u90fd\u88ab\u5199\u5165file\u91cc\u3002
\u8ffd\u52a0\u547d\u4ee4\uff1aa\u547d\u4ee4
$\u00a0sed\u00a0‘\/^test\/a\\\\—>this\u00a0is\u00a0a\u00a0example’\u00a0example<—–‘this\u00a0is\u00a0a\u00a0example’\u88ab\u8ffd\u52a0\u5230\u4ee5test\u5f00\u5934\u7684\u884c\u540e\u9762\uff0csed\u8981\u6c42\u547d\u4ee4a\u540e\u9762\u6709\u4e00\u4e2a\u53cd\u659c\u6760\u3002<\/p>\n

\u63d2\u5165\uff1ai\u547d\u4ee4
$\u00a0sed\u00a0‘\/test\/i\\\\<\/p>\n

new\u00a0line<\/p>\n

————————-‘\u00a0example<\/p>\n

\u5982\u679ctest\u88ab\u5339\u914d\uff0c\u5219\u628a\u53cd\u659c\u6760\u540e\u9762\u7684\u6587\u672c\u63d2\u5165\u5230\u5339\u914d\u884c\u7684\u524d\u9762\u3002<\/p>\n

\u4e0b\u4e00\u4e2a\uff1an\u547d\u4ee4
$\u00a0sed\u00a0‘\/test\/{\u00a0n;\u00a0s\/aa\/bb\/;\u00a0}’\u00a0example—–\u5982\u679ctest\u88ab\u5339\u914d\uff0c\u5219\u79fb\u52a8\u5230\u5339\u914d\u884c\u7684\u4e0b\u4e00\u884c\uff0c\u66ff\u6362\u8fd9\u4e00\u884c\u7684aa\uff0c\u53d8\u4e3abb\uff0c\u5e76\u6253\u5370\u8be5\u884c\uff0c\u7136\u540e\u7ee7\u7eed\u3002<\/p>\n

\u53d8\u5f62\uff1ay\u547d\u4ee4
$\u00a0sed\u00a0‘1,10y\/abcde\/ABCDE\/’\u00a0example—–\u628a1–10\u884c\u5185\u6240\u6709abcde\u8f6c\u53d8\u4e3a\u5927\u5199\uff0c\u6ce8\u610f\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u5143\u5b57\u7b26\u4e0d\u80fd\u4f7f\u7528\u8fd9\u4e2a\u547d\u4ee4\u3002<\/p>\n

\u9000\u51fa\uff1aq\u547d\u4ee4
$\u00a0sed\u00a0’10q’\u00a0example—–\u6253\u5370\u5b8c\u7b2c10\u884c\u540e\uff0c\u9000\u51fased\u3002<\/p>\n

\u4fdd\u6301\u548c\u83b7\u53d6\uff1ah\u547d\u4ee4\u548cG\u547d\u4ee4
$\u00a0sed\u00a0-e\u00a0‘\/test \/h’\u00a0-e\u00a0‘$G\u00a0example—–\u5728sed\u5904\u7406\u6587\u4ef6\u7684\u65f6\u5019\uff0c\u6bcf\u4e00\u884c\u90fd\u88ab\u4fdd\u5b58\u5728\u4e00\u4e2a\u53eb\u6a21\u5f0f\u7a7a\u95f4\u7684\u4e34\u65f6\u7f13\u51b2\u533a\u4e2d\uff0c\u9664\u975e\u884c\u88ab\u5220\u9664\u6216\u8005\u8f93\u51fa\u88ab\u53d6\u6d88\uff0c \u5426\u5219\u6240\u6709\u88ab\u5904\u7406\u7684\u884c\u90fd\u5c06\u00a0\u6253\u5370\u5728\u5c4f\u5e55\u4e0a\u3002\u63a5\u7740\u6a21\u5f0f\u7a7a\u95f4\u88ab\u6e05\u7a7a\uff0c\u5e76\u5b58\u5165\u65b0\u7684\u4e00\u884c\u7b49\u5f85\u5904\u7406\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u91cc\uff0c\u5339\u914dtest\u7684\u884c\u88ab\u627e\u5230\u540e\uff0c\u5c06\u5b58\u5165\u6a21\u5f0f\u7a7a\u95f4\uff0ch\u547d\u4ee4 \u5c06\u5176\u590d\u5236\u5e76\u5b58\u5165\u4e00\u4e2a\u79f0\u4e3a\u4fdd\u00a0\u6301\u7f13\u5b58\u533a\u7684\u7279\u6b8a\u7f13\u51b2\u533a\u5185\u3002\u7b2c\u4e8c\u6761\u8bed\u53e5\u7684\u610f\u601d\u662f\uff0c\u5f53\u5230\u8fbe\u6700\u540e\u4e00\u884c\u540e\uff0cG\u547d\u4ee4\u53d6\u51fa\u4fdd\u6301\u7f13\u51b2\u533a\u7684\u884c\uff0c\u7136\u540e\u628a\u5b83\u653e\u56de\u6a21\u5f0f\u7a7a\u95f4\u4e2d\uff0c\u4e14\u8ffd\u52a0 \u5230\u73b0\u5728\u5df2\u7ecf\u5b58\u5728\u4e8e\u6a21\u5f0f\u7a7a\u95f4\u4e2d\u00a0\u7684\u884c\u7684\u672b\u5c3e\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u5c31\u662f\u8ffd\u52a0\u5230\u6700\u540e\u4e00\u884c\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u4efb\u4f55\u5305\u542btest\u7684\u884c\u90fd\u88ab\u590d\u5236\u5e76\u8ffd\u52a0\u5230\u8be5\u6587\u4ef6\u7684\u672b\u5c3e\u3002<\/p>\n

\u4fdd\u6301\u548c\u4e92\u6362\uff1ah\u547d\u4ee4\u548cx\u547d\u4ee4
$\u00a0sed\u00a0-e\u00a0‘\/test\/h’\u00a0-e\u00a0‘\/check\/x’\u00a0example\u00a0—–\u4e92\u6362\u6a21\u5f0f\u7a7a\u95f4\u548c\u4fdd\u6301\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u3002\u4e5f\u5c31\u662f\u628a\u5305\u542btest\u4e0echeck\u7684\u884c\u4e92\u6362\u3002<\/p>\n

7.\u00a0\u811a\u672c
Sed\u811a\u672c\u662f\u4e00\u4e2ased\u7684\u547d\u4ee4\u6e05\u5355\uff0c\u542f\u52a8Sed\u65f6\u4ee5-f\u9009\u9879\u5f15\u5bfc\u811a\u672c\u6587\u4ef6\u540d\u3002Sed\u5bf9\u4e8e\u811a\u672c\u4e2d\u8f93\u5165\u7684\u547d\u4ee4\u975e\u5e38\u6311\u5254\uff0c\u5728\u547d\u4ee4\u7684\u672b\u5c3e\u4e0d\u80fd\u6709\u4efb\u4f55\u7a7a\u767d\u6216\u6587\u672c\uff0c\u5982\u679c\u5728\u4e00\u884c\u4e2d\u6709\u591a\u4e2a\u547d\u4ee4\uff0c\u8981\u7528\u5206\u53f7\u5206\u9694\u3002\u4ee5#\u5f00\u5934\u7684\u884c\u4e3a\u6ce8\u91ca\u884c\uff0c\u4e14\u4e0d\u80fd\u8de8\u884c\u3002
\u6bd4\u5982\uff0c\u5982\u679c\u8981\u6253\u5370\u51fa\u542b\u6709\u5b57\u4e32\u201d1024\u201d\u7684\u884c\uff0c\u6211\u5c31\u53ef\u80fd\u4f1a\u7528\uff1a
cat\u00a0filename\u00a0|\u00a0sed\u00a0\u2013n\u00a0\u2018\/1024\/p\u2019sed\u547d\u4ee4\u8be6\u89e3!!(\u8981\u5b66\u4e60shell\u7684\u00a0\u670b\u53cb\u8981\u597d\u597d\u770b\u770b)<\/p>\n

\u00a01,sed\u4ecb\u7ecd<\/strong>
sed \u53ef\u5220\u9664(delete)\u3001\u6539\u53d8(change)\u3001\u6dfb\u52a0(append)\u3001\u63d2\u5165(insert)\u3001\u5408\u3001\u4ea4\u6362\u6587\u4ef6\u4e2d\u7684\u8d44\u6599\u884c,\u6216\u8bfb\u5165\u5176\u5b83\u6863\u7684\u8d44\u6599\u5230 \u6587\u00a0>\u4ef6\u4e2d,\u4e5f\u53ef\u66ff\u6362(substuite)\u5b83\u4eec\u5176\u4e2d\u7684\u5b57\u4e32\u3001\u6216\u8f6c\u6362(tranfer)\u5176\u4e2d\u7684\u5b57\u6bcd\u7b49\u7b49\u3002\u4f8b\u5982\u5c06\u6587\u4ef6\u4e2d\u7684\u8fde\u7eed\u7a7a\u767d\u884c\u5220\u6210\u4e00 \u884c\u3001\u00a0“local”\u5b57\u4e32\u66ff\u6362\u6210”remote”\u3001”t”\u5b57\u6bcd\u8f6c\u6362\u6210”T”\u3001\u5c06\u7b2c10\u884c\u8d44\u6599\u4e0e\u7b2c11\u8d44\u6599\u5408\u7b49.
\u603b \u5408\u4e0a\u8ff0\u6240\u8a00,\u5f53sed\u7531\u6807\u51c6\u8f93\u5165\u8bfb\u5165\u4e00\u884c\u8d44\u6599\u5e76\u653e\u5165pattern\u00a0space\u65f6,sed\u4f9d\u7167sed\u00a0script\u00a0\u7684\u7f16\u8f91\u6307\u4ee4\u9010\u4e00\u5bf9 pattern\u00a0space\u5185\u7684\u8d44\u6599\u6267\u884c\u7f16\u8f91,\u4e4b\u5f8c,\u518d\u7531pattern\u00a0space\u5185\u7684\u7ed3\u679c\u9001\u5230\u6807\u51c6\u8f93\u51fa,\u63a5\u7740\u518d\u5c06\u4e0b\u4e00\u884c\u8d44\u6599\u8bfb\u5165.\u5982\u6b64\u91cd\u6267\u884c\u4e0a\u8ff0\u52a8 \u4f5c,\u76f4\u81f3\u8bfb>\u5b8c\u6240\u6709\u8d44\u6599\u884c\u4e3a\u6b62.
\u5c0f\u7ed3,\u8bb0\u4f4f:
(1)sed\u603b\u662f\u4ee5\u884c\u5bf9\u8f93\u5165\u8fdb\u884c\u5904\u7406
(2)sed\u5904\u7406\u7684\u4e0d\u662f\u539f\u6587\u4ef6\u800c\u662f\u539f\u6587\u4ef6\u7684\u62f7\u8d1d<\/p>\n

\u547d\u4ee4\u884c\u6982\u8ff0:
sed\u00a0\u7f16\u8f91\u6307\u4ee4\u7684\u683c\u5f0f\u5982\u4e0b\u00a0:
[address1[,address2]]function[argument]
\u5176\u4e2d\u00a0,\u00a0\u4f4d\u5740\u53c2\u6570\u00a0address1\u00a0\u3001address2\u00a0\u4e3a\u884c\u6570\u6216\u00a0regular\u00a0expression\u00a0\u5b57\u4e32\u00a0,\u00a0\u8868\u793a\u6240\u6267\u884c\u7f16\u8f91\u7684\u8d44\u6599\u884c;\u00a0\u51fd\u6570\u53c2\u6570\u00a0function[argument]\u00a0\u4e3a\u00a0sed\u00a0\u7684\u5185\u5b9a\u51fd\u6570\u00a0,\u00a0\u8868\u793a\u6267\u884c\u7684\u7f16\u8f91\u52a8\u4f5c\u3002<\/p>\n

\u6709\u90a3\u4e9b\u51fd\u6570(function)\u53c2\u6570
\u4e0b\u9875\u8868\u4e2d\u4ecb\u7ecd\u6240\u6709\u00a0sed\u00a0\u7684\u51fd\u6570\u53c2\u6570(\u53c2\u7167[chapter\u00a04])\u7684\u529f\u80fd\u3002
\u51fd\u6570\u53c2\u6570\u00a0\u529f\u80fd
:\u00a0label\u00a0\u00a0\u5efa\u7acb\u00a0script\u00a0file\u00a0\u5185\u6307\u4ee4\u4e92\u76f8\u53c2\u8003\u7684\u4f4d\u7f6e\u3002
#\u00a0\u00a0\u5efa\u7acb\u89e3
{\u00a0}\u00a0\u00a0\u96c6\u5408\u6709\u76f8\u540c\u4f4d\u5740\u53c2\u6570\u7684\u6307\u4ee4\u3002
!\u00a0\u00a0\u4e0d\u6267\u884c\u51fd\u6570\u53c2\u6570\u3002
=\u00a0\u00a0\u5370\u51fa\u8d44\u6599\u884c\u6570(\u00a0line\u00a0number\u00a0)\u3002
a\\\u00a0\u00a0\u6dfb\u52a0\u4f7f\u7528\u8005\u8f93\u5165\u7684\u8d44\u6599\u3002
b\u00a0label\u00a0\u00a0\u5c06\u6267\u884c\u7684\u6307\u4ee4\u8df3\u81f3\u7531\u00a0:\u00a0\u5efa\u7acb\u7684\u53c2\u8003\u4f4d\u7f6e\u3002
c\\\u00a0\u00a0\u4ee5\u4f7f\u7528\u8005\u8f93\u5165\u7684\u8d44\u6599\u53d6\u4ee3\u8d44\u6599\u3002
d\u00a0\u00a0\u5220\u9664\u8d44\u6599\u3002
D\u00a0\u00a0\u5220\u9664\u00a0pattern\u00a0space\u00a0\u5185\u7b2c\u4e00\u4e2a\u00a0newline\u00a0\u5b57\u6bcd\u00a0\\\u00a0\u524d\u7684\u8d44\u6599\u3002
g\u00a0\u00a0\u62f7\u8d1d\u8d44\u6599\u4ece\u00a0hold\u00a0space\u3002
G\u00a0\u00a0\u6dfb\u52a0\u8d44\u6599\u4ece\u00a0hold\u00a0space\u00a0\u81f3\u00a0pattern\u00a0space\u00a0\u3002
h\u00a0\u00a0\u62f7\u8d1d\u8d44\u6599\u4ece\u00a0pattern\u00a0space\u00a0\u81f3\u00a0hold\u00a0space\u00a0\u3002
H\u00a0\u00a0\u6dfb\u52a0\u8d44\u6599\u4ece\u00a0pattern\u00a0space\u00a0\u81f3\u00a0hold\u00a0space\u00a0\u3002
l\u00a0\u00a0\u5370\u51fa\u00a0l\u00a0\u8d44\u6599\u4e2d\u7684\u00a0nonprinting\u00a0character\u00a0\u7528\u00a0ASCII\u00a0\u7801\u3002
i\\\u00a0\u00a0\u63d2\u5165\u6dfb\u52a0\u4f7f\u7528\u8005\u8f93\u5165\u7684\u8d44\u6599\u884c\u3002
n\u00a0\u00a0\u8bfb\u5165\u4e0b\u4e00\u7b14\u8d44\u6599\u3002
N\u00a0\u00a0\u6dfb\u52a0\u4e0b\u4e00\u7b14\u8d44\u6599\u5230\u00a0pattern\u00a0space\u3002
p\u00a0\u00a0\u5370\u51fa\u8d44\u6599\u3002
P\u00a0\u00a0\u5370\u51fa\u00a0pattern\u00a0space\u00a0\u5185\u7b2c\u4e00\u4e2a\u00a0newline\u00a0\u5b57\u6bcd\u00a0\\\u00a0\u524d\u7684\u8d44\u6599\u3002
q\u00a0\u00a0\u8df3\u51fa\u00a0sed\u00a0\u7f16\u8f91\u3002
r\u00a0\u00a0\u8bfb\u5165\u5b83\u6863\u5185\u5bb9\u3002
s\u00a0\u00a0\u66ff\u6362\u5b57\u4e32\u3002
t\u00a0label\u00a0\u00a0\u5148\u6267\u884c\u4e00\u66ff\u6362\u7684\u7f16\u8f91\u6307\u4ee4\u00a0,\u00a0\u5982\u679c\u66ff\u6362\u6210\u725bp>\u5219\u5c06\u7f16\u8f91\u6307\u4ee4\u8df3\u81f3\u00a0:\u00a0label\u00a0\u5904\u6267\u884c\u3002
w\u00a0\u00a0\u5199\u8d44\u6599\u5230\u5b83\u6863\u5185\u3002
x\u00a0\u00a0\u4ea4\u6362\u00a0hold\u00a0space\u00a0\u4e0e\u00a0pattern\u00a0space\u00a0\u5185\u5bb9\u3002
y\u00a0\u00a0\u8f6c\u6362(transform)\u5b57\u5143\u3002
\u867d\u7136\u00a0,\u00a0sed\u00a0\u53ea\u6709\u4e0a\u8868\u6240\u8ff0\u51e0\u4e2a\u62e5\u6709\u57fa\u672c\u7f16\u8f91\u529f\u80fd\u7684\u51fd\u6570\u00a0,\u00a0\u4f46\u7531\u6307\u4ee4\u4e2d\u4f4d\u5740\u53c2\u6570\u548c\u6307\u4ee4\u4e0e\u6307\u4ee4\u95f4\u7684\u914d\u5408\u00a0,\u00a0\u4e5f\u80fd\u4f7fsed\u00a0\u5b8c\u6210\u5927\u90e8\u4efd\u7684\u7f16\u8f91\u4efb\u52a1\u3002<\/p>\n

2,1\u00a0\u5220\u9664<\/strong>
(1)\u00a0sed\u00a0-e\u00a0‘1d’\u00a0inputfile\u00a0(\u5220\u9664\u7b2c\u4e00\u884c)
\u90a3\u4e48\u5220\u9664\u7b2cx\u884c\u5462?\u5220\u9664\u7b2cx1,x2,x3\u884c\u5462\uff1f
sed\u00a0-e\u00a0‘xd’\u00a0inputfile
sed\u00a0-e\u00a0‘x1d’\u00a0-e\u00a0‘x2d’\u00a0-e\u00a0‘x3d’\u00a0inputfile
\u5f53\u7136\u4e5f\u8bb8\u8fd8\u6709\u66f4\u597d\u7684\u529e\u6cd5\u3002<\/p>\n

(2)\u00a0sed\u00a0-e\u00a0‘1,3d’\u00a0file\u00a0(\u5220\u9664\u7b2c\u4e00\u5230\u7b2c\u4e09\u884c)
\u601d\u8003\uff1a\u5220\u9664\u7b2cn\u884c\u5230\u7b2cm\u884c?\u4e5f\u5c31\u662f
sed\u00a0-e\u00a0‘n,md’\u00a0file
\u5220\u9664\u7b2c\u4e00\u884c\u5230\u6700\u540e\u4e00\u884c
sed\u00a0-e\u00a0‘1,$d’\u00a0file\u00a0\u00a0\u00a0\u00a0\u00a0#$\u00a0\u6700\u540e\u4e00\u884c\u548c\u4e00\u884c\u7684\u6700\u540e<\/p>\n

(3)\u00a0sed\u00a0-e\u00a0‘\/#\/d’\u00a0file\u00a0\u00a0(\u5220\u9664\u542b\u6709’#’\u53f7\u7684\u884c)
\u601d\u8003\uff1a\u5220\u9664\u542b\u6709\u5b57\u6bcdxx\u7684\u884c
sed\u00a0-e\u00a0‘\/xx\/d’\u00a0file
\u601d\u8003:\u00a0\u5220\u9664\u9664\u542b\u6709\u5b57\u7b26\u4e32xx\u7684\u6240\u6709\u884c
sed\u00a0-e\u00a0‘\/xx\/!d’\u00a0file<\/p>\n

(4)\u00a0sed\u00a0-e\u00a0‘\/word1\/,\u00a0\/word2\/d’\u00a0file\u00a0\u00a0(\u5220\u9664\u4ece\u542b\u6709\u5355\u8bcdword1\u5230\u542b\u6709\u5355\u8bcdword2\u7684\u884c)
sed\u00a0-e\u00a0’10,\/word1\/d’\u00a0file
\u5220\u9664\u6587\u4ef6\u4e2d\u4ece\u7b2c10\u884c\u5230\u542b\u6709word1\u7684\u884c
sed\u00a0-e\u00a0‘\/word1\/,10\/d’\u00a0file
\u548c\u4e0a\u9762\u7684\u5339\u914d\u76f8\u53cd\uff0c\u5220\u9664\u4ece\u542b\u6709word1\u7684\u884c\u5230\u7b2c10\u884c<\/p>\n

(5)\u00a0sed\u00a0-e\u00a0‘\/t.*t\/d’\u00a0file\u00a0\u00a0\u00a0\u00a0\u00a0(\u5220\u9664\u542b\u6709\u4e24\u4e2at\u7684\u884c)
\u601d\u8003\uff1a\u5220\u9664\u542b\u6709\u6307\u5b9a\u6b63\u5728\u8868\u8fbe\u5f0f\u5339\u914d\u7684\u884c\u3002
2.2\u00a0\u66ff\u6362\u00a0\u00a0<\/strong>
Sed\u00a0\u53ef\u66ff\u6362\u6587\u4ef6\u4e2d\u7684\u5b57\u4e32\u3001\u8d44\u6599\u884c\u3001\u751a\u81f3\u8d44\u6599\u533a\u3002\u5176\u4e2d,\u8868\u793a\u66ff\u6362\u5b57\u4e32\u7684\u6307\u4ee4\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u4e3as;\u8868\u793a\u66ff\u6362\u8d44\u6599\u884c\u3001\u6216\u8d44\u6599\u533a>\u7684\u6307\u4ee4\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u4e3ac\u3002\u4e0a\u8ff0\u60c5\u51b5\u4ee5\u4e0b\u9762\u4e09\u4e2a\u4f8b\u5b50\u8bf4\u660e\u3002<\/p>\n

*\u884c\u7684\u66ff\u6362
(1)\u00a0sed\u00a0-e\u00a0‘1c\\#!\/bin\/more’\u00a0file\u00a0(\u628a\u7b2c\u4e00\u884c\u66ff\u6362\u6210#!\/bin\/more)
\u601d\u8003:\u00a0\u628a\u7b2cn\u884c\u66ff\u6362\u6210just\u00a0do\u00a0it
sed\u00a0-e\u00a0‘nc\\just\u00a0do\u00a0it’\u00a0file<\/p>\n

(2)\u00a0sed\u00a0-e\u00a0‘1,10c\\I\u00a0can\u00a0do\u00a0it’\u00a0file\u00a0\u00a0(\u628a1\u523010\u884c\u66ff\u6362\u6210\u4e00\u884c:I\u00a0can\u00a0do\u00a0it)
\u601d\u8003:\u00a0\u6362\u6210\u4e24\u884c(I\u00a0can\u00a0do\u00a0it!\u00a0Let’s\u00a0start)
sed\u00a0-e\u00a0‘1,10c\\I\u00a0can\u00a0do\u00a0it!\\nLet'”\\'”‘s\u00a0start’\u00a0file<\/p>\n

*\u5b57\u7b26\u7684\u66ff\u6362
(3)\u00a0sed\u00a0-e\u00a0‘s\/word1\/&\u00a0word2\/’\u00a0file\u00a0(\u5c06\u6bcf\u4e00\u884c\u7684word1\u5355\u8bcd\u66ff\u6362\u6210s\u53c2\u6570\u6700\u591a\u4e0e\u4e24\u4e2a\u4f4d\u7f6e\u53c2\u6570\u76f8\u7ed3\u5408,\u51fd\u6570\u53c2\u6570s\u4e2d\u6709\u4e24\u4e2a\u7279\u6b8a\u7684\u7b26\u53f7:
&\u00a0:\u00a0\u4ee3\u8868pattern
\\n\u00a0:\u00a0\u4ee3\u8868\u00a0pattern\u00a0\u4e2d\u88ab\u7b2c\u00a0n\u00a0\u4e2a\u00a0\\(\u00a0\u3001\\)(\u53c2\u7167[\u9644\u5f55\u00a0A])\u00a0\u6240\u62ec\u8d77\u6765\u7684\u5b57\u4e32\u3002\u4f8b\u5982<\/p>\n

sed\u00a0-e\u00a0‘s\/w1\/&\u00a0w2\/’\u00a0file\u00a0\u00a0#\u00a0w1\u7684\u5730\u65b9\u8f93\u51fa\u00a0w1\u00a0w2
sed\u00a0-e\u00a0\u00a0‘s\/\\(test\\)\u00a0\\(my\\)\u00a0\\(car\\)\/[\\2\u00a0\\3\u00a0\\1]\/’\u00a0file\u00a0\u00a0\u00a0#\u7ed3\u679c:\u00a0[my\u00a0car\u00a0test]<\/p>\n

*flag\u00a0\u53c2\u6570\u4e3e\u4f8b
sed\u00a0-e\u00a0‘s\/w1\/&\u00a0w2\/g’\u00a0file
g\u00a0:\u00a0\u4ee3\u8868\u66ff\u6362\u6240\u6709\u5339\u914d\u9879\u76ee;\u8fd9\u91cc,\u6587\u4ef6\u4e2d\u6240\u6709\u5b57\u7b26\u4e32w1\u90fd\u4f1a\u88ab\u66ff\u6362\u6210\u5b57\u4e32w1\u00a0w2
sed\u00a0-e\u00a0‘s\/w1\/&\u00a0w2\/10’\u00a0file
m(10)\u00a0:\u00a0\u66ff\u6362\u884c\u5185\u7b2cm\u4e2a\u7b26\u5408\u7684\u5b57\u4e32;\u00a0\u8bb0\u4f4f\uff0c\u662f\u884c\u5185\u7684\u7b2cm\u4e2a\u5339\u914d\u7684\u5b57\u4e32
sed\u00a0-e\u00a0‘s\/w1\/&\u00a0w2\/p’\u00a0file
p\u00a0:\u00a0\u66ff\u6362\u7b2c\u4e00\u4e2a\u548cw1\u5339\u914d\u7684\u5b57\u7b26\u4e32\u4e3aw1\u00a0w2\uff0c\u5e76\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa.
sed\u00a0-e\u00a0‘s\/w1\/&\u00a0w2\/w\u00a0w2file’\u00a0file
w\u00a0filename\u00a0:\u00a0\u8be5\u53c2\u6570\u4f1a\u5c06\u66ff\u6362\u8fc7\u7684\u5185\u5bb9\u5199\u5165\u5230\u6587\u4ef6w2file\u5e76\u8f93\u51fa\u66ff\u6362\u540e\u7684\u6574\u4e2a\u6587\u4ef6\u3002\u6ce8\u610fw2file\u91cc\u5199\u7684\u53ea\u662f\u66ff\u6362\u8fc7\u7684\u884c\u3002\u00a0\u00a0\u00a0\u00a0sed\u00a0‘e\u00a0‘s\/w1\/&\u00a0w2\/’\u00a0file
\u8fd9\u91cc\u7684flag\u00a0\u4e3a\u7a7a,\u00a0\u8fd9\u6837\u5c31\u53ea\u662f\u5c06\u7b2c\u4e00\u4e2aw1\u5339\u914d\u7684\u5b57\u7b26\u4e32\u66ff\u6362\u6210w1\u00a0w2\u800c\u540e\u9762\u7684\u4e0d\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n

*\u4f4d\u7f6e\u53c2\u6570\u5e94\u7528\u4e3e\u4f8b
sed\u00a0-e\u00a0‘\/machine\/s\/phi\/beta\/g’\u00a0file
\u5c06\u6587\u4ef6\u4e2d\u542b”machine”\u5b57\u4e32\u7684\u8d44\u6599\u884c\u4e2d\u7684”phi”\u5b57\u4e32,\u66ff\u6362\u6210\u4e3a”beta”\u5b57\u4e32
sed\u00a0-e\u00a0‘1,10\u00a0s\/w1\/&\u00a0w2\/g’\u00a0file
\u628a1\u523010\u5185\u7684w1\u5b57\u7b26\u4e32\u66ff\u6362\u6210w1\u00a0w2\u5b57\u7b26\u4e32\u3002
sed\u00a0-e\u00a0‘1,\/else\/\u00a0s\/w1\/&\u00a0w2\/g’\u00a0file
\u628a1\u5230\u5b57\u7b26\u4e32else\u5185\u7684w1\u5b57\u7b26\u4e32\u66ff\u6362\u6210w1\u00a0w2\u5b57\u7b26\u4e32\u3002<\/p>\n

\u5176\u5b83\u4f4d\u7f6e\u53c2\u6570\u7684\u5e94\u7528\u4e0e\u524d\u9762\u7684\u76f8\u540c\u3002
2.3\u00a0\u5185\u5bb9\u7684\u63d2\u5165<\/strong>
i
\u57fa\u672c\u683c\u5f0f:
[address]\u00a0i\\\u00a0\u63d2\u5165\u5185\u5bb9\u00a0filename
word2)
\u8bf4\u660e:
\u51fd\u6570\u53c2\u6570\u00a0s\u00a0\u8868\u793a\u66ff\u6362(substitute)\u6587\u4ef6\u5185\u5b57\u4e32\u3002\u5176\u6307\u4ee4\u683c\u5f0f\u5982\u4e0b\u00a0:
[address1[\u00a0,address2]]\u00a0s\/pattern\/replacemen\/[flag]<\/p>\n

sed\u00a0-e\u00a0‘\/#\/i\\words’\u00a0file\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0#\u5728#\u5b57\u7b26\u7684\u524d\u9762\u63d2\u5165\u4e00\u884cwords<\/p>\n

\u8bf4\u660e\uff1a
\u8fd9\u91cc\u7684\u51fd\u6570\u53c2\u6570\u662fi\uff0c\u5b83\u53ea\u80fd\u6709\u4e00\u4e2a\u5730\u5740\u53c2\u6570\u3002
sed\u00a0-e\u00a0‘1\/i\\words’\u00a0file
\u5728\u7b2c\u4e00\u884c\u524d\u52a0\u4e00\u884cwords
cat\u00a0“word”\u00a0|\u00a0sed\u00a0-e\u00a0‘\/$\/.doc\/g’\u00a0\u00a0\u00a0#\u8f93\u51faword.doc
\u5728word\u540e\u9762\u52a0\u4e0a\u540e\u7f00\u540d\uff0c\u4ece\u800c\u8f93\u51faword.doc
i\u00a0\u53c2\u6570\u6b63\u597d\u4e0ea\u53c2\u6570\u76f8\u53cd\uff0c\u5b83\u662f\u63d2\u5165\u5230\u6240\u7ed9\u5185\u5bb9\u7684\u524d\u9762.<\/p>\n

a
a\u53c2\u6570\u7684\u4f7f\u7528\u683c\u5f0f\u5982\u4e0b\uff1a
[address]\u00a0a\\\u00a0<\u63d2\u5165\u5185\u5bb9>\u00a0filename<\/p>\n

sed\u00a0-e\u00a0‘\/unix\/a\\\u00a0haha’\u00a0test.txt\u00a0\u00a0\u00a0#\u5728\u542b\u6709unix\u7684\u884c\u540e\u6dfb\u52a0”haha”
#\u8f93\u51fa\u7ed3\u679c\u4e3a:
unix
haha<\/p>\n

\u53e6\u5916:\u00a0sed\u00a0-e\u00a0‘1\u00a0a\\\u00a0hh’\u00a0test.txt\u00a0\u00a0#\u5728\u7b2c\u4e00\u884c\u540e\u6dfb\u52a0hh\u5b57\u7b26.<\/p>\n

2.4\u00a0\u6587\u672c\u7684\u6253\u5370:\u00a0p<\/strong>
\u57fa\u672c\u683c\u5f0f\uff1a
[address1,[address2]]\u00a0p<\/p>\n

(1)\u00a0sed\u00a0-e\u00a0‘\/then\/\u00a0p’\u00a0filename\u00a0\u00a0#\u6253\u5370\u6240\u6709\u884c\u5e76\u91cd\u590d\u6253\u5370\u542b\u6709then\u00a0\u7684\u884c
(2)\u00a0sed\u00a0-n\u00a0‘\/then\/\u00a0p’\u00a0filename\u00a0\u00a0#\u53ea\u6253\u5370\u542b\u6709then\u7684\u884c
(3)\u00a0sed\u00a0-e\u00a0‘1,3\u00a0p’\u00a0filename\u00a0\u00a0\u00a0\u00a0\u00a0#\u00a0\u6253\u5370\u6240\u6709\u884c\u5e76\u91cd\u590d1-3\u884c
(4)\u00a0sed\u00a0-n\u00a0‘1,3\u00a0p’\u00a0filename\u00a0\u00a0\u00a0\u00a0\u00a0#\u00a0\u6253\u53701-3\u884c
(5)\u00a0sed\u00a0-n\u00a0‘\/if\/,\/fi\/\u00a0p’\u00a0filename\u00a0#\u6253\u5370\u5b57\u7b26if\u548cfi\u4e4b\u95f4\u7684\u5185\u5bb9<\/p>\n

p\u51fd\u6570\u4e3ased\u7684\u6253\u5370\u51fd\u6570\uff0c\u5728\u8fd9\u91cc\u8981\u6ce8\u610f-e\u00a0\u548c-n\u00a0\u53c2\u6570\u7684\u533a\u522b\u3002\u4e00\u822c\u4f7f\u7528-n\u53c2\u6570\u3002
2.5\u00a0\u5b57\u5143\u7684\u66ff\u6362:\u00a0y<\/strong>
\u4f8b\u5982\uff1a
(1)sed\u00a0-e\u00a0‘y\/abc..\/xyz..\/’\u00a0filename
\u628a\u6587\u4ef6\u4e2d\u7684a\u5b57\u6bcd\u66ff\u6362\u6210x,\u00a0b\u66ff\u6362\u6210y,\u00a0c\u66ff\u6362\u6210z\u3002
(2)\u00a0sed\u00a0\u00a0-e\u00a0‘y\/abc\/ABC’\u00a0filename
\u628a\u5c0f\u5199\u7684abc\u8f6c\u6362\u6210\u5927\u5199\u7684ABC<\/p>\n

2.6\u00a0\u53cd\u76f8\u6267\u884c\u547d\u4ee4\u00a0:\u00a0!<\/strong>
\u57fa\u672c\u683c\u5f0f:
[address1[\u00a0,\u00a0address2]]\u00a0!\u00a0\u51fd\u6570\u53c2\u6570<\/p>\n

sed\u00a0-e\u00a0‘\/1996\/!d’\u00a0filename
\u5220\u9664\u9664\u4e86\u542b\u67091996\u7684\u6240\u6709\u884c\u3002
2.7\u00a0\u6539\u53d8\u6587\u4ef6\u4e2d\u7684\u8d44\u6599:\u00a0c<\/strong>
\u57fa\u672c\u683c\u5f0f\uff1a
[address1[\u00a0,address2]]c\\\u00a0filename
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sed\u00a0-e\u00a0‘\/zhengxh\/c\u00a0hhhh’\u00a0filename
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2.8\u00a0\u8bfb\u5165\u4e0b\u4e00\u884c\u8d44\u6599:\u00a0n<\/strong>
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sed\u00a0-n\u00a0-e\u00a0‘\/echo\/n’\u00a0-e\u00a0‘p’\u00a0temp
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sed\u00a0-n\u00a0-e\u00a0‘n’\u00a0-e\u00a0‘p’\u00a0filename
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3,\u00a0\u547d\u4ee4\u7684\u590d\u7528<\/strong>
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