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How to use double or single brackets, parentheses, curly braces
...0000000; i++)); do [[ "$i" = 1000 ]]; done
real 0m24.548s
user 0m24.337s
sys 0m0.036s
$ time for ((i=0; i<10000000; i++)); do [ "$i" = 1000 ]; done
real 0m33.478s
user 0m33.478s
sys 0m0.000s
The braces, in addition to delimiting a variable name are used for parameter expansion so ...
Simple state machine example in C#?
...ublic override int GetHashCode()
{
return 17 + 31 * CurrentState.GetHashCode() + 31 * Command.GetHashCode();
}
public override bool Equals(object obj)
{
StateTransition other = obj as StateTransition;
re...
External VS2013 build error “error MSB4019: The imported project was not found”
...uilding a project through the command line and not inside Visual Studio 2013. Note, I had upgraded my project from Visual Studio 2012 to 2013. The project builds fine inside the IDE. Also, I completely uninstalled VS2012 first, rebooted, and installed VS2013. The only version of Visual Studio that I...
How to find and return a duplicate value in array
...utions: https://gist.github.com/naveed-ahmad/8f0b926ffccf5fbd206a1cc58ce9743e
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Awaiting multiple Tasks with different results
I have 3 tasks:
10 Answers
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Restore a postgres backup file using the command line?
I'm new to postgresql, and locally, I use pgadmin3. On the remote server, however, I have no such luxury.
24 Answers
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Fastest way to reset every value of std::vector to 0
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353
std::fill(v.begin(), v.end(), 0);
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What does %w(array) mean?
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answered Aug 13 '09 at 21:28
sepp2ksepp2k
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Const before or const after?
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alseether
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answered Mar 31 '11 at 16:55
Heath HunnicuttHeat...
Convert Unix timestamp to a date string
...ith GNU's date you can do:
date -d "@$TIMESTAMP"
# date -d @0
Wed Dec 31 19:00:00 EST 1969
(From: BASH: Convert Unix Timestamp to a Date)
On OS X, use date -r.
date -r "$TIMESTAMP"
Alternatively, use strftime(). It's not available directly from the shell, but you can access it via gawk. T...