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Running shell command and capturing the output

I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line. ...
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Find unused npm packages in package.json

...the module: npm install depcheck -g or yarn global add depcheck Run it and find the unused dependencies: depcheck The good thing about this approach is that you don't have to remember the find or grep command. To run without installing use npx: npx depcheck ...
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Does Python have a string 'contains' substring method?

... Under the hood, Python will use __contains__(self, item), __iter__(self), and __getitem__(self, key) in that order to determine whether an item lies in a given contains. Implement at least one of those methods to make in available to your custom type. – BallpointBen ...
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How to completely remove node.js from Windows

I uninstalled my previous version of node.js (0.8.11) and downloaded the latest, 0.10.24 from the node.js website and installed it. However, after running node --version , it still indicates that I'm running v0.8.11. Obviously, some stuff was left behind during the uninstall process, and it's causi...
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Get difference between two lists

... @Drewdin: Lists do not support the "-" operand. Sets, however, do, and that what is demonstrated above if you look closely. – Godsmith Oct 14 '14 at 21:21 ...
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Insert into a MySQL table or update if exists

...m what I've found, this method is less problematic for auto-increment keys and other unique key collisions than REPLACE INTO, and it is more efficient. – Andrew Ensley May 11 '12 at 21:27 ...
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How to find third or nth maximum salary from salary table?

...FKYS_INS_ID from cmn_pat_x_insurance ins where ins.FKYS_PAT_ID='1253_717' and ins.FKYS_INS_TYPE in(1) and ins.BOL_TYPE in(1,3) and ins.salary in (min(ins.salary)) – saidesh kilaru Dec 11 '13 at 5:32 ...
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How to benchmark efficiency of PHP script

... If you actually want to benchmark real world code, use tools like Xdebug and XHProf. Xdebug is great for when you're working in dev/staging, and XHProf is a great tool for production and it's safe to run it there (as long as you read the instructions). The results of any one single page load aren...
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What is “:-!!” in C code?

... effect, a way to check whether the expression e can be evaluated to be 0, and if not, to fail the build. The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.) You...
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How should I ethically approach user password storage for later plaintext retrieval?

As I continue to build more and more websites and web applications I am often asked to store user's passwords in a way that they can be retrieved if/when the user has an issue (either to email a forgotten password link, walk them through over the phone, etc.) When I can I fight bitterly against thi...