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Passing additional variables from command line to make
...nment (the conditional variable assignment operator, it only has an effect if the variable is not yet defined):
FOO?=default_value_if_not_set_in_environment
Note that certain variables are not inherited from environment:
MAKE is gotten from name of the script
SHELL is either set within a makefi...
How to copy a collection from one database to another in MongoDB
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Note that if you copy in the JS shell the BSON documents are decoded to JSON during the process so some documents may incur type changes. mongodump/mongorestore are generally the better approach.
– Stennie
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How to cancel an $http request in AngularJS?
...essCallback);
// later...
canceler.resolve(); // Aborts the $http request if it isn't finished.
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How do you get the current time of day?
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DateTime.Now.TimeOfDay gives it to you as a TimeSpan (from midnight).
DateTime.Now.ToString("h:mm:ss tt") gives it to you as a string.
DateTime reference: https://msdn.microsoft.com/en-us/library/system.datetime
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Tick symbol in HTML/XHTML
...first symbol here, ☐ / 0x2610. This is an empty (unchecked) checkbox, so if you see a box, that's the way it's supposed to look. It's the counterpart to ☑ / 0x2611, which is the checked version.
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Check if application is on its first run [duplicate]
...verride
protected void onResume() {
super.onResume();
if (prefs.getBoolean("firstrun", true)) {
// Do first run stuff here then set 'firstrun' as false
// using the following line to edit/commit prefs
prefs.edit().putBoolean("firstrun", false)...
Bash array with spaces in elements
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I think the issue might be partly with how you're accessing the elements. If I do a simple for elem in $FILES, I experience the same issue as you. However, if I access the array through its indices, like so, it works if I add the elements either numerically or with escapes:
for ((i = 0; i < ${#...
Find size of an array in Perl
I seem to have come across several different ways to find the size of an array. What is the difference between these three methods?
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Force line-buffering of stdout when piping to tee
...eam buffering
-e, --error=MODE adjust standard error stream buffering
If MODE is 'L' the corresponding stream will be line buffered.
This option is invalid with standard input.
If MODE is '0' the corresponding stream will be unbuffered.
Otherwise MODE is a number which may be followed by one ...
Get current date/time in seconds
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Date.now()
gives milliseconds since epoch. No need to use new.
Check out the reference here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
(Not supported in IE8.)
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