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What does the line “#!/bin/sh” mean in a UNIX shell script?
...
It's called a shebang, and tells the parent shell which interpreter should be used to execute the script.
e.g.
#!/usr/bin/perl <--perl script'
#!/usr/bin/php <-- php script
#!/bin/false <--- do-nothing script, because...
What is the best CSS Framework and are they worth the effort?
...rum I've came across the world of CSS Frameworks. The one I've been specifically looking at is BluePrint . I was wondering if anyone else had come across CSS frameworks, suggest which is the best and if they are worth the effort?
...
How to manually deprecate members
..., and a message :
@available(iOS, deprecated:6.0)
func myFunc() {
// calling this function is deprecated on iOS6+
}
Or
@available(iOS, deprecated: 6.0, obsoleted: 7.0, message: "Because !")
func myFunc() {
// deprecated from iOS6, and obsoleted after iOS7, the message "Because !" is disp...
How to pass argument to Makefile from command line?
...nd @: and cannot find info on what those "directives" (or whatever they're called) do. Could you please explain?
– Jon
Sep 9 '14 at 17:38
...
setTimeout / clearTimeout problems
...cessary, in this case, to clear the variable that hoods the timeOut before call the time out, as so, avoiding it to be invoked twice
– Diego Favero
May 1 at 15:30
add a commen...
How do I undo the most recent local commits in Git?
...want to nuke commit C and never see it again and lose all the changes in locally modified files. You do this:
git reset --hard HEAD~1
The result is:
(F)
A-B
↑
master
Now B is the HEAD. Because you used --hard, your files are reset to their state at commit B.
Ah, but suppose commit C wa...
JavaScript REST client Library [closed]
...it's fairly simple with most libraries. For example in jQuery you can just call the generic $.ajax function with the type of request you want to make:
$.ajax({
url: 'http://example.com/',
type: 'PUT',
data: 'ID=1&Name=John&Age=10', // or $('#myform').serializeArray()
success...
throw new std::exception vs throw std::exception
...operly clean it up at the appropriate time.
Throwing a pointer to a dynamically allocated object is never a good idea. Exceptions are supposed to enable you to write more robust code in the face of error conditions. If you throw an exception object in the conventional manner you can be sure that wh...
How can I keep Bootstrap popovers alive while being hovered?
...fe (the popover won't disappear). It requires delay option.
This hack basically overrides Popover leave function, but calls the original (which starts timer to hide the popover). Then it attaches a one-off listener to mouseenter popover content element's.
If mouse enters the popover, the timer is ...
Reload django object from database
... throws a DoesNotExist exception if the underlying object was deleted when calling refresh_from_db. FYI.
– Tim Tisdall
Jan 17 at 19:26
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