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Variable interpolation in the shell
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192
Use
"$filepath"_newstap.sh
or
${filepath}_newstap.sh
or
$filepath\_newstap.sh
_ is a va...
How can I divide two integers to get a double?
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You want to cast the numbers:
double num3 = (double)num1/(double)num2;
Note: If any of the arguments in C# is a double, a double divide is used which results in a double. So, the following would work too:
double num3 = (double)num1/num2;
For more information see:
Dot Net Perls
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Validate uniqueness of multiple columns
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321
You can scope a validates_uniqueness_of call as follows.
validates_uniqueness_of :user_id, :s...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
... time?
– Pacerier
Dec 16 '14 at 10:02
40
@Pacerier: on a single core machine, yes, but multi-core...
How can I read a whole file into a string variable
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262
Use ioutil.ReadFile:
func ReadFile(filename string) ([]byte, error)
ReadFile reads the f...
How to drop multiple columns in postgresql
I want to drop 200 columns in my table in PostgreSQL. I tried:
2 Answers
2
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LINQ to SQL - Left Outer Join with multiple join conditions
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245
You need to introduce your join condition before calling DefaultIfEmpty(). I would just use ex...
How to git bundle a complete repo
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answered Aug 3 '12 at 12:14
Jakub NarębskiJakub Narębski
254k5858 gold badges205205 silver badges227227 bronze badges
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'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
...ent directory (but there's no module or any maven relationship between the 2, just FS convenience). Do I have to place it out?
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How to insert tab character when expandtab option is on in Vim
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524
You can use <CTRL-V><Tab> in "insert mode". In insert mode, <CTRL-V> inserts ...