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What's a concise way to check that environment variables are set in a Unix shell script?
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14 Answers
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Determining the current foreground application from a background task or service
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How do you use window.postMessage across domains?
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Here is an example that works on Chrome 5.0.375.125.
The page B (iframe content):
<html>
<head></head>
<body>
<script>
top.postMessage('hello', 'A');
</script>
</body>
</html>
Note ...
How do I get cURL to not show the progress bar?
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curl -s http://google.com > temp.html
works for curl version 7.19.5 on Ubuntu 9.10 (no progress bar). But if for some reason that does not work on your platform, you could always redirect stderr to /dev/null:
curl http://google.com 2>/dev/null > temp.html
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How to calculate the sentence similarity using word2vec model of gensim with python
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jQuery AJAX file upload PHP
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edited Feb 23 '18 at 0:53
answered Jun 1 '14 at 14:46
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The entitlements specified…profile. (0xE8008016). Error iOS 4.2
...s file do not match those specified in your provisioning profile.
(0xE8008016). when trying to deploy my first app to an un-jailbroken device on iOS 4.2.6 (Verizon). The thing is, I do not have a Entitlements file in my project, as I am not distributing it at all, only putting it on one device. I...
Can I create more than one repository for github pages?
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159
You can have one site published to https://<username>.github.io by publishing to the mas...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...rong host. Is that the right host you are trying to log in to?
Note that 1. will also happen if you have messed up the /home/<username>/.ssh/authorized_keys file on your EC2 instance.
About 2., the information about which username you should use is often lacking from the AMI Image descript...
What JSON library to use in Scala? [closed]
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