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How to list all users in a Linux group?
...rs;
my $usertext = `getent passwd`;
my @users = $usertext =~ /^([a-zA-Z0-9_-]+):/gm;
foreach my $userid (@users)
{
my $usergrouptext = `id -Gn $userid`;
my @grouplist = split(' ',$usergrouptext);
foreach my $group (@grouplist)
{
$groupmembers{$group}->{$userid} = 1;
...
Error in exception handler. - Laravel
...the above commands did not work. However, this command did: sudo chown -R _www app/storage (replace _www with your Apache server name if necessary)
– Leo Galleguillos
Jun 17 '14 at 20:41
...
Eclipse ctrl+right does nothing
... kind of bug in the editor specifically (https://bugs.eclipse.org/bugs/show_bug.cgi?id=426557). Sometimes you can find that when you restart can't move with control+arrow in the editor but you can in other views like console window.
You can disable welcome screen ( in most eclipse based IDEs it's a...
Ruby, remove last N characters from a string?
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Ruby 2.5+
As of Ruby 2.5 you can use delete_suffix or delete_suffix! to achieve this in a fast and readable manner.
The docs on the methods are here.
If you know what the suffix is, this is idiomatic (and I'd argue, even more readable than other answers here):
'abc...
Compiling Java 7 code via Maven
...t's building the command. Perhaps you or someone else has hard-coded a JAVA_HOME in there and forgotten about it.
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SLF4J: Class path contains multiple SLF4J bindings
... answered Jul 14 '16 at 20:53
VK_217VK_217
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UICollectionView reloadData not functioning properly in iOS 7
...
Force this on the main thread:
dispatch_async(dispatch_get_main_queue(), ^ {
[self.collectionView reloadData];
});
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...er-image: url("http://upload.wikimedia.org/wikipedia/commons/9/95/Christmas_bell_icon_1.png")
0 100% 100% 0;
}
<img width="300" height="120"
src="http://fc03.deviantart.net/fs71/f/2012/253/b/0/merry_christmas_card_by_designworldwide-d5e9746.jpg"
class="myClass"...
How to check what version of jQuery is loaded?
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// Short and sweet
$_
// My original 'goto' means to get the version
$.fn.jquery
// If there is concern that there may be multiple implementations of `$` then:
jQuery.fn.jquery
Recently I have had issues using $.fn.jquery on a few sites so I...
How to check if a string is a valid date
...ems to be very forgiving when it comes to dates, e.g. it will parse "FOOBAR_09_2010" as the date 2012-09-09.
– n13
Nov 4 '13 at 12:00
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