大约有 1,824 项符合查询结果（耗时：0.0421秒） [XML]
Select random lines from a file
... sort actually sorts identical lines together, so if you may have duplicate lines and you have shuf (a gnu tool) installed, it's better to use it for this.
– Kevin
Feb 12 '12 at 3:59
...
Create a tar.xz in one command
...p2 > some-dir.tar.bz2
Decompressing is also quite straightforward:
xzcat tarball.tar.xz | tar x
bzcat tarball.tar.bz2 | tar x
zcat tarball.tar.gz | tar x
If you have only tar archive, you can use cat:
cat archive.tar | tar x
If you need to list the files only, use tar t.
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Efficiency of premature return in a function
...
There is no difference at all:
=====> cat test_return.cpp
extern void something();
extern void something2();
void test(bool b)
{
if(b)
{
something();
}
else
something2();
}
=====> cat test_return2.cpp
extern void something();
e...
Retrieve specific commit from a remote Git repository
...push.sh:
git fetch --depth=1 ../testrepo/.git $SHA1
You can use the git cat-file command to see that the commit has been fetched:
git cat-file commit $SHA1
"git upload-pack" that serves "git fetch" can be told to serve
commits that are not at the tip of any ref, as long as they are
reac...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
...you don't wont to use the notebook as a text editor ? (I mean : each modification in the cell won't change the .py file). By the way, I have no clue of a native way to insert a .py content in a cell, I always copy/paste my code when needed... sorry
– Raphaël Braud
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Java - No enclosing instance of type Foo is accessible
... System.out.println("Dog checkup");
}
}
class Cat extends Animal {
@Override
void checkup() {
System.out.println("Cat Checkup");
}
}
}
share
|
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How do I join two SQLite tables in my Android application?
... a.alternative
FROM tbl_question AS q, tbl_alternative AS a
WHERE q.categoryid = a.categoryid
AND q._id = a.questionid;
This is from memory so there may be some syntactic issues.
http://www.sqlite.org/lang_createview.html
I mention this approach because then you can use SQLiteQueryBui...
Is there a better way to express nested namespaces in C++ within the header
...R_EXPAND(VA_COUNT_HELPER(__VA_ARGS__, 6, 5, 4, 3, 2, 1))
#define VA_SELECT_CAT(_Name, _Count, ...) VA_HELPER_EXPAND(_Name##_Count(__VA_ARGS__))
#define VA_SELECT_HELPER(_Name, _Count, ...) VA_SELECT_CAT(_Name, _Count, __VA_ARGS__)
#define VA_SELECT(_Name, ...) VA_SELECT_HE...
How to use Checkbox inside Select Option
...heckbox" size="5">
<option>Dog</option>
<option>Cat</option>
<option>Hippo</option>
<option>Dinosaur</option>
<option>Another Dog</option>
</select>
<h3>Font Awesome</h3>
<select multiple="" class...
Create a pointer to two-dimensional array
...itb, i'm sorry but this is wrong as your solution does not provide any allocation of storage for the array.
– Rob Wells
Jun 27 '09 at 18:11
2
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