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Unix command to find lines common in two files
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$ bash --version
GNU bash, version 3.2.51(1)-release
Copyright (C) 2007 Free Software Foundation, Inc.
$ cat > abc
123
567
132
$ cat > def
132
777
321
So the files abc and def have one line in common, the one with "132".
Using comm on unsorted files:
$ comm abc def
123
132
567
132
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custom listview adapter getView method being called multiple times, and in no coherent order
...of android (pre ICS) because it can lead you to MemoryLeak exception. feel free to use it in ICS+ versions.
– Vahid Ghadiri
Aug 25 '15 at 22:50
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What is the best way to test for an empty string in Go?
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This seems to be premature microoptimization. The compiler is free to produce the same code for both cases or at least for these two
if len(s) != 0 { ... }
and
if s != "" { ... }
because the semantics is clearly equal.
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jQuery SVG vs. Raphael [closed]
...ke to note that I ended up choosing Raphael, because of the clean API and "free" IE support, and also because the active development looks promising (event support was just added in 0.7, for instance). However, I'll leave the question unanswered, and I'd still be interested to hear about others' exp...
Why do we need a fieldset tag?
... and be able to read it off to the user in some sort of natural way. Feel free to disappear the legend if you don't want sighted users to see it. Laying out and styling legend just right with CSS is sometimes dicey cross-browsers especially with legacy browsers, so I find making the legend tag inv...
How do I get bit-by-bit data from an integer value in C?
... = n_bits; bit--;)
printf("%u", bits[bit]);
printf("\n");
free(bits);
}
Assuming that you want to calculate all bits as in this case, and not a specific one, the loop can be further changed to
for(bit = 0; bit < n_bits; ++bit, input >>= 1)
bits[bit] = input & 1;
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腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...();
printf("%s:%d consume task %d\n", __func__, __LINE__, task->id);
free(task);
}
return NULL;
}
int main()
{
stEnv_t* env = new stEnv_t;
env->cond = co_cond_alloc();
stCoRoutine_t* consumer_routine;
co_create(&consumer_routine, NULL, Consumer, env);
co_resume(consumer_rout...
How do I “Add Existing Item” an entire directory structure in Visual Studio?
I have a free standing set of files not affiliated with any C# project at all that reside in a complicated nested directory structure.
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Read lines from a file into a Bash array [duplicate]
...E='*' command eval 'XYZ=($(cat /etc/passwd))' as the first two lines. Feel free to edit as this is your answer anyway. nJoy!
– user2350426
Dec 22 '15 at 11:53
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read file from assets
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Your code doesn't guaranty to close the stream and free the resource in a timely manner. I recommend you to use finally {reader.close();}.
– Vincent Cantin
Apr 10 '14 at 4:17
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