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Check folder size in Bash
...arent sizes, rather than disk usage; although the apparent size is usually smaller, it may be larger due to holes in ('sparse')
files, internal fragmentation, indirect blocks, and the like
And of course theres no need for -h (Human readable) option inside a script.
Instead You can use ...
How to initialize a JavaScript Date to a particular time zone
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Background
JavaScript's Date object tracks time in UTC internally, but typically accepts input and produces output in the local time of the computer it's running on. It has very few facilities for working with time in other time zones.
The internal representation of a Date object is a...
Find value in an array
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array.select{} will go through all elements in the array looking those which match the condition. array.find instead will return the first element that match the condition. So preferable use array.find{ |e| e == 3 } then array.select{ |e| e == 3 }.first
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Change One Cell's Data in mysql
...nly one cell of a mysql table.
I have problem with UPDATE because it makes all the parameters in a column change but I want only one changed. How?
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Apple Mach-O Linker Error when compiling for device
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Here is permanent solution.Generally overwriting project may cause this prolems.Try this method.
-UPDATE - Clang error - Mach-O Linker error
In some case error log window displaying .xctest error, to fix it
-> Select your project
-> Beside this(ju...
How does Duff's device work?
...he article on Wikipedia on the Duff's device , and I don't get it. I am really interested, but I've read the explanation there a couple of times and I still don't get it how the Duff's device works.
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What is the difference between \r and \n?
...ngs like \a "bell", \b "backspace" (not to be confused with "delete"), and all the other control characters needed to communicate with a tty.
– erjiang
Aug 14 '09 at 19:48
37
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I need to pop up and trash away a “middle” commit in my master branch. How can I do it?
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Rebase or revert are the options. Rebase will actually remove the commit from the history so it will look like that second commit never existed. This will be a problem if you've pushed the master branch out to any other repos. If you try to push after a rebase in this case, ...
SQL order string as number
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MySQL automatically converts the string to a number to make the multiplication with 1
– juergen d
Aug 4 '12 at 12:40
1
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How to hide iOS status bar
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In the Plist add the following properties.
Status bar is initially hidden = YES
View controller-based status bar appearance = NO
now the status bar will hidden.
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