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Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...s an old trick to do this with only one comparison/branch. Whether it'll really improve speed may be open to question, and even if it does, it's probably too little to notice or care about, but when you're only starting with two comparisons, the chances of a huge improvement are pretty remote. The c...
How to only get file name with Linux 'find'?
I'm using find to all files in directory, so I get a list of paths. However, I need only file names. i.e. I get ./dir1/dir2/file.txt and I want to get file.txt
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How to specify more spaces for the delimiter using cut?
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Actually awk is exactly the tool you should be looking into:
ps axu | grep '[j]boss' | awk '{print $5}'
or you can ditch the grep altogether since awk knows about regular expressions:
ps axu | awk '/[j]boss/ {print $5}'
But...
JPG vs. JPEG image formats
... Photographic Expert Group File Format was ‘.jpeg’; however in Windows all files required a three letter file extension. So, the file extension was shortened to ‘.jpg’. However, Macintosh was not limited to three letter file extensions, so Mac users used ‘.jpeg’. Eventually, with upgrade...
Weighted random numbers
...a weighted random numbers. I'm currently just banging my head against the wall and cannot figure this out.
7 Answers
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How do I put two increment statements in a C++ 'for' loop?
...us:
for(int i = 0; i != 5; ++i,++j)
do_something(i,j);
But is it really a comma operator?
Now having wrote that, a commenter suggested it was actually some special syntactic sugar in the for statement, and not a comma operator at all. I checked that in GCC as follows:
int i=0;
int a=5;
int...
MySQL dump by query
...he database by query. What he asked and what he meant were different. He really wanted to just mysqldump all tables.
mysqldump --tables myTable --where="id < 1000"
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elasticsearch v.s. MongoDB for filtering application [closed]
...to elastic. Our use case differs from yours in that our Mongo data changes all the time: a record, or a subset of the fields of a record, can be updated several times a day and this can call for re-indexing of that record to elastic. For that reason alone, using elastic as the sole data store is not...
Android: How to bind spinner to custom object list?
...ass)
label.setText(values[position].getName());
// And finally return your dynamic (or custom) view for each spinner item
return label;
}
// And here is when the "chooser" is popped up
// Normally is the same view, but you can customize it if you want
@Overr...
Dynamic variable names in Bash
...Fgilrtux] [-p] [name[=value] ...]. You might double-check that you are actually running 4.x and not 3.2.
– chepner
Dec 2 '13 at 16:08
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