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How can I check if a program exists from a Bash script?
..., in a way that will either return an error and exit, or continue with the script?
37 Answers
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Download multiple files with a single action
...unt of windows to initiate the file downloads (this would be done with JavaScript)
preferred solution create a script to zip the files
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C++ preprocessor __VA_ARGS__ number of arguments
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Elegant solution! Works in VS2017. The ## isn't needed in VS2017 as an empty __VA_ARGS__ will automatically remove any preceding comma.
– poby
Oct 7 '18 at 2:24
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How can I automatically deploy my app after a git push ( GitHub and node.js)?
...yload->ref === 'refs/heads/master')
{
// path to your site deployment script
exec('./build.sh');
}
In the build.sh you will need to put usual commands to retrieve your site from github
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“NODE_ENV” is not recognized as an internal or external command, operable command or batch file
...of the command and its args.
Just install it (globally), and run your npm script commands, it should automatically make them work.
npm install -g win-node-env
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Indentation shortcuts in Visual Studio
... select text, it will allow you to make a square selection. Starting with VS2010, you can start typing and it will replace the contents of your square selection with what you type. Absolutely awesome for changing a bunch of lines at once.
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Restricting input to textbox: allowing only numbers and decimal point
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<HTML>
<HEAD>
<SCRIPT language=Javascript>
<!--
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : evt.keyCode;
if (charCode != 46 && charCode > 31
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SQLite error 'attempt to write a readonly database' during insert?
...he owner of the SQLite file itself is not the same as the user running the script. Similar errors can occur if the entire directory path (meaning each directory along the way) can't be written to.
Who owns the SQLite file? You?
Who is the script running as? Apache or Nobody?
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How to make ReSharper re-evaluate its assembly reference highlighting
...7.1\SolutionCaches\
%LOCALAPPDATA%\JetBrains\Transient\ReSharperPlatformVsXX\vXX\SolutionCaches\ for newer versions.
Note that the version numbers in the paths may be different depending on the ReSharper version that is installed.
The XX in vXX and VsXX represents any number, because there ...
How do I use sudo to redirect output to a location I don't have permission to write to?
... the -c option:
sudo sh -c 'ls -hal /root/ > /root/test.out'
Create a script with your commands and run that script with sudo:
#!/bin/sh
ls -hal /root/ > /root/test.out
Run sudo ls.sh. See Steve Bennett's answer if you don't want to create a temporary file.
Launch a shell with sudo -s the...