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Automatically capture output of last command into a variable using Bash?
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This is a really hacky solution, but it seems to mostly work some of the time. During testing, I noted it sometimes didn't work very well when getting a ^C on the command line, though I did tweak it a bit to behave a bit better.
This hack is an interactive mode hack only, and I am pretty confi...
Uses for the Java Void Reference Type?
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This is implementation specific and may change at any time. There's no guarantee that the class has a no-arg constructor and even if it does have one that may do anything (perhaps System.exit(0)). I tend to write utility classes with a constructor as private Void() { throw new E...
How to get the instance id from within an ec2 instance?
...a read (tldr: was command line tools are java, and java has a long startup time)
– James
Feb 22 '14 at 10:29
The best ...
Ensure that HttpConfiguration.EnsureInitialized()
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This one gets me all the time, but it used to give a different error. After upgrading to visual studio 2015 and .Net 4.6 I get this error.
– nbering
Aug 5 '15 at 14:47
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'App not Installed' Error on Android
... That was really helpful, and I installed-uninstalled my app for like 20 times before I found this. Thanks a lot! :-)
– Rahul Arora
Aug 13 '17 at 21:16
3
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How are ssl certificates verified?
...done without 1.
This is better explained in this big diagram I made some time ago
(skip to "what's a signature ?" at the bottom)
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Colorized grep — viewing the entire file with highlighted matches
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However, from time to time, it does not find what I want when I’m certain it must be there. ack is smart, but sometimes too smart, and it exluded the file type that the hit was in.
– Michael Piefel
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Checking network connection
...f internet_on():
try:
urllib2.urlopen('http://216.58.192.142', timeout=1)
return True
except urllib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be expected to ...
Simple way to encode a string according to a password?
...ges and it packages AES CBC encryption for you with version information, a timestamp and an HMAC signature to prevent message tampering.
Fernet makes it very easy to encrypt and decrypt messages and keep you secure. It is the ideal method for encrypting data with a secret.
I recommend you use Fer...
How can I do a line break (line continuation) in Python?
...ry, you can add an extra pair of parentheses around an expression, but sometimes using a backslash looks better.
– Jerub
Sep 22 '08 at 2:33
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