From: arisawa <arisawa@ar.aichi-u.ac.jp>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] grep bug?
Date: Fri, 12 Jul 2013 06:39:26 +0900 [thread overview]
Message-ID: <037DE2C5-A225-4741-A3F1-AA7BC24C0B80@ar.aichi-u.ac.jp> (raw)
In-Reply-To: <24ccd68343090eaea81aabf6e539c2b1@coraid.com>
Thanks erik,
It is not easy to get small sample.
I tried to make smaller sample discarding the first line of pattern file and target file.
the problem depends not only pattern file but also target file!
it is curious why grep does not give conclusion to each line that is read from target file.
my result is shown below.
t0 and t1 are target file
z0 and z1 are pattern file
term% echo $t
e54272690d513f8b2403568a7574b1ba
term% grep -n $t z0 z1 t0 t1
z0:4081: e54272690d513f8b2403568a7574b1ba
z1:4082: e54272690d513f8b2403568a7574b1ba
t0:4298: e54272690d513f8b2403568a7574b1ba /usr/arisawa/src/taskfs/Q/task.387.a/
t1:4299: e54272690d513f8b2403568a7574b1ba /usr/arisawa/src/taskfs/Q/task.387.a/
term% wc z0 z1 t0 t1
4575 4575 150975 z0
4576 4576 151008 z1
4583 9166 388702 t0
4584 9168 388756 t1
18318 27485 1079441 total
term% diff -c z0 z1
z0:1,3 - z1:1,4
+ 00775d6a004acb79a2cd3ec30f743a9e
008de90ca02f6c4f10e2f172e0511105
00cfd51ea3ea1152f98c1f90130be7d0
00cff9d5f2b4d08753f96564dac50a58
term% diff -c t0 t1
t0:1,3 - t1:1,4
+ f104706a82b7c20e0f2c3cf83033958c /usr/arisawa/bin/rc/
521db7c46291f0785d8d77f8e614350a /usr/arisawa/bin/rc/photo/
e76b64877aea9c8b4dcc24069436d52d /usr/arisawa/lib/
1d6ca6d83f5f51ebfdd94fea02a9fb8b /usr/arisawa/lib/cookies/
term% grep -f z0 t0 | grep $t
e54272690d513f8b2403568a7574b1ba /usr/arisawa/src/taskfs/Q/task.387.a/
term% grep -f z1 t0 | grep $t
e54272690d513f8b2403568a7574b1ba /usr/arisawa/src/taskfs/Q/task.387.a/
term% grep -f z0 t1 | grep $t
e54272690d513f8b2403568a7574b1ba /usr/arisawa/src/taskfs/Q/task.387.a/
term% grep -f z1 t1 | grep $t
term%
Kenji Arisawa
next prev parent reply other threads:[~2013-07-11 21:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-11 13:11 arisawa
2013-07-11 14:05 ` erik quanstrom
2013-07-11 21:39 ` arisawa [this message]
2013-07-21 3:29 ` [9fans] grep bug again arisawa
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