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How to create a file with a given size in Linux?
...le. A non-sparse file has its blocks (allocation units) allocated ahead of time which means the space is reserved as far as the file system sees it. Also fallocate nor truncate will not set the contents of the file to a specified value like dd, instead the contents of a file allocated with fallocate...
Git pre-push hooks
...it pushes and starts another push in another thread, if the first one push times out, the second one from another thread works for me. If either first and second succeeds, then the first pushes changes, and the second pushes nothing. The trick is that i had some argument added, which bypasses unit t...
Jump to function definition in vim
...earch for its definition.
--Edit--
Although I've been using g* for a long time, I've recently discovered two shortcuts for these shortcuts!
(a) * will jump to the next occurrence of the word under the cursor. (No need to type the g, the 'goto' command in vi).
(b) # goes to the previous occurrenc...
Can modules have properties the same way that objects can?
...s made in the module containing the class will not be "visible" during run time, etc...
– tutuDajuju
Nov 1 '16 at 9:41
...
Best way to pretty print a hash
...ed: I always use pry as my Rails console, and I've been looking for a long time how to tap into its pretty-printer without using another gem. Upvoted because this solution finally put an end to my long search. :-)
– wiz
Jul 25 '18 at 7:49
...
How to delete the contents of a folder?
...cursively looks into subdirectories when you try to advance it, and by the time you've done your first iteration of this loop, there are no subdirectories left to look at. In essence, os.walk is just being used here as an alternative way of distinguishing top-level folders from top-level files; the ...
Does MS SQL Server's “between” include the range boundaries?
...xpression
and less than or equal to the value of
end_expression.
DateTime Caveat
NB: With DateTimes you have to be careful; if only a date is given the value is taken as of midnight on that day; to avoid missing times within your end date, or repeating the capture of the following day's data ...
check android application is in foreground or not? [duplicate]
...
I am getting a notification from server every time..If the app is running in foreground i don't want to show that notification if it runs in foreground..
– hacker
Dec 13 '11 at 13:51
...
How to delete a cookie?
...pires = "";
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days*24*60*60*1000));
expires = "; expires=" + date.toUTCString();
}
document.cookie = name + "=" + (value || "") + expires + "; path=/";
}
function getCookie(name) {
var nameEQ = n...
What is the difference between a URI, a URL and a URN?
...se are much more regulated and intended to be unique across both space and time.
Because I currently share this name with other people, it's not globally unique and would not be appropriate as a URN. However, even if no other family used this name, I'm named after my paternal grandfather, so it sti...