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What does “&” at the end of a linux command mean?

I am a system administrator and I have been asked to run a linux script to clean the system. 4 Answers ...
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How to download a file with Node.js (without using third-party libraries)?

... I got the following console output when I ran this script: node.js:201 throw e; // process.nextTick error, or 'error' event on first tick ^ Error: connect ECONNREFUSED at errnoException (net.js:646:11) at Object.afterConnect [as oncomplete] (net....
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How to identify server IP address in PHP

...gethostbyname($host); This works well when you are running a stand-alone script, not running through the web server. share | improve this answer | follow | ...
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How do I configure emacs for editing HTML files that contain Javascript?

...irst steps of using emacs to edit an HTML file with both HTML tags and javascript content. I have installed nxhtml and tried using it - i.e set up to use nxhtml-mumamo-mode for .html files. But I am not loving it. When I am editing the Javascript portion of the code the tab indents do not behav...
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Where can I learn jQuery? Is it worth it?

... It is very much worth it. jQuery really makes JavaScript fun again. It's as if all of JavaScript best practices were wrapped up into a single library. I learned it through jQuery in Action (Manning), which I whipped through over a weekend. It's a little bit behind the curre...
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Triggering HTML5 Form Validation

I have a form with several different fieldsets. I have some Javascript that displays the field sets to the users one at a time. For browsers that support HTML5 validation, I'd love to make use of it. However, I need to do it on my terms. I'm using JQuery. ...
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How to check if a Constraint exists in Sql server?

... not Exists" checks in my post "DDL 'IF not Exists" conditions to make SQL scripts re-runnable" share | improve this answer | follow | ...
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How do I capture the output into a variable from an external process in PowerShell?

...tput from multiple commands, use either a subexpression ($(...)) or call a script block ({ ... }) with & or .: $cmdOutput = $(<command>; ...) # subexpression $cmdOutput = & {<command>; ...} # script block with & - creates child scope for vars. $cmdOutput = . {<command&g...
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How to calculate time elapsed in bash script?

I print the start and end time using date +"%T" , which results in something like: 20 Answers ...
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Getting the client's timezone offset in JavaScript

...fficult to keep up with changes. To get the system's IANA timezone in JavaScript, you should use console.log(Intl.DateTimeFormat().resolvedOptions().timeZone) As of September 2019, this works in 95% of the browsers used globally. Old compatibility information ecma-402/1.0 says that ...