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How to find whether or not a variable is empty in Bash

...in practice this tests whether $variable is empty or not. As an addition (3½ years after the fact :-) ) I would never use this myself since -z does what I probably want in a clearer way, but I wanted to add this answer since this method is frequently seen "in the wild"; perhaps written this way on ...
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UIImagePickerController error: Snapshotting a view that has not been rendered results in an empty sn

...an 26 '14 at 11:50 Germán MarquèsGermán Marquès 4933 bronze badges ...
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How do I create a copy of an object in PHP?

It appears that in PHP objects are passed by reference. Even assignment operators do not appear to be creating a copy of the Object. ...
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Regular expression to match DNS hostname or IP Address?

...latin (Punycoded) hostnames must be converted to ASCII form first (éxämplè.com = xn--xmpl-loa1ab.com) and then validated. – Alix Axel Jul 21 '13 at 8:36 6 ...
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How to unescape HTML character entities in Java?

...lt;/p>, with StringEscapeUtils.unescapeHtml4() I get <p>üè</p>. Is there a way to keep existing html tags intact? – Nickkk Jan 13 at 12:10 add...
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How to escape double quotes in a title attribute

...87 | double greater-than sign » &#189 | fraction 1/2 ½ &#191 | inverted question mark ¿ &#8220 | left double quote “ &#8212 | dash — share | ...
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Do I need elements in persistence.xml?

...red Nov 22 '09 at 23:41 Mads MobækMads Mobæk 29.5k2020 gold badges6464 silver badges7575 bronze badges ...
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Converting DateTime format using razor

...iggs, I feel ya cuz. Glad to share the pain so that we all might gain --6½ years later! – Jules Bartow Dec 4 '18 at 8:14 add a comment  |  ...
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I've found my software as cracked download on Internet, what to do?

...property to illegal duplication/usage of your IP. – Lèse majesté Aug 24 '10 at 2:41 30 There ar...
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Can you use reflection to find the name of the currently executing method?

...swered Sep 4 '08 at 16:52 Lars MæhlumLars Mæhlum 5,86633 gold badges2424 silver badges3232 bronze badges ...