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为什么这2种情况下,结果不一样呢?不一样的aa.patch内容,一样的查找模式。
1)
$cat aa.patch
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
$ cat aa.patch |sed -n '1,/^r379/p'
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
2)
$ cat aa.patch
#r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
$ cat aa.patch |sed -n '1,/^r379/p'
#r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
为什么这2种情况也不一样呢?同样的aa.patch内容,不同的查找模式(中间加了个grep)
11)
$ cat aa.patch
#r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
$ cat aa.patch |sed -n '1,/^r379/p'
#r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
22)
$ cat aa.patch
#r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
$ cat aa.patch |grep "^r"|sed -n '1,/^r379/p'
r379 | build | 2009-10-12 22:23:41 -0700 (Mon, 12 Oct 2009) | 1 line
r378 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
r376 | build | 2009-10-12 19:29:50 -0700 (Mon, 12 Oct 2009) | 1 line
哪位朋友解释一下,谢谢 |
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