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Prompt for user input in PowerShell
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Read-Host is a simple option for getting string input from a user.
$name = Read-Host 'What is your username?'
To hide passwords you can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the pass...
Reading GHC Core
Core is GHC's intermediate language. Reading Core can help you better understand the performance of your program. Someone asked me for documentation or tutorials on reading Core, but I couldn't find much.
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What is an alternative to execfile in Python 3?
...ation, instead of
execfile("./filename")
Use
exec(open("./filename").read())
See:
What’s New In Python 3.0
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How to pipe input to a Bash while loop and preserve variables after loop ends
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The correct notation for Process Substitution is:
while read i; do echo $i; done < <(echo "$FILECONTENT")
The last value of i assigned in the loop is then available when the loop terminates.
An alternative is:
echo $FILECONTENT |
{
while read i; do echo $i; done
...do othe...
Why is volatile needed in C?
...erface with hardware that changes the value itself; when there's another thread running that also uses the variable; or when there's a signal handler that might change the value of the variable.
Let's say you have a little piece of hardware that is mapped into RAM somewhere and that has two address...
Easiest way to read from and write to files
There are a lot of different ways to read and write files ( text files , not binary) in C#.
12 Answers
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Downloading images with node.js [closed]
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fs.writeFileSync('image.png', data.read());
});
}).end();
The newest Node versions won't work well with binary strings, so merging chunks with strings i...
When to use SELECT … FOR UPDATE?
...s without specifying FOR UPDATE explicitly.
To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from deleting from rooms until Thread 1 is done. Is that correct?
This depends on the concurrency control your database system is using.
MyISAM in...
What's the best way to learn LISP? [closed]
... in Python, PHP, Java and C for a couple or years now, and I just finished reading Hackers and Painters, so I would love to give LISP a try!
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Utils to read resource text file to String (Java) [closed]
Is there any utility that helps to read a text file in the resource into a String. I suppose this is a popular requirement, but I couldn't find any utility after Googling.
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