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How to execute a Ruby script in Terminal?
...ur_program.rb
or
start your program with #!/usr/bin/env ruby,
make your file executable by running chmod +x your_program.rb
and do ./your_program.rb some_param
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Search and replace in Vim across all the project files
...e best way to do search-and-replace (with confirmation) across all project files in Vim. By "project files" I mean files in the current directory, some of which do not have to be open.
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Razor View throwing “The name 'model' does not exist in the current context”
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I think you have messed up the web.config file which lives in the Views folder.
Create a new project targeting the same .NET framework and copy its Views/web.config file on top of the one in your current project. This will fix your problem.
Also, as Dudeman3000 com...
Execute a terminal command from a Cocoa app
...ocessInfo processInfo] processIdentifier];
NSPipe *pipe = [NSPipe pipe];
NSFileHandle *file = pipe.fileHandleForReading;
NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/bin/grep";
task.arguments = @[@"foo", @"bar.txt"];
task.standardOutput = pipe;
[task launch];
NSData *data = [fil...
The static keyword and its various uses in C++
...class, but they should usually still be defined in a translation unit (cpp file), and as such, there's only one per class]
locations as code:
static std::string namespaceScope = "Hello";
void foo() {
static std::string functionScope= "World";
}
struct A {
static std::string classScope = "!";...
How do you test a public/private DSA keypair?
...ate key matches a given public key? I have a few *.pub and a few *.key files, and I need to check which go with which.
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Android multiple email attachments using Intent
...ve been working on Android program to send email with an attachment (image file, audio file, etc) using Intent with ACTION_SEND . The program is working when email has a single attachment. I used Intent.putExtra(android.content.Intent.EXTRA_STREAM, uri) to attach the designated image file to the ...
Java NIO FileChannel versus FileOutputstream performance / usefulness
...if there is any difference in performance (or advantages) when we use nio FileChannel versus normal FileInputStream/FileOuputStream to read and write files to filesystem. I observed that on my machine both perform at the same level, also many times the FileChannel way is slower. Can I please k...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
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To find all socket files on your system run:
sudo find / -type s
My Mysql server system had the socket open at /var/lib/mysql/mysql.sock
Once you find where the socket is being opened, add or edit the line to your /etc/my.cnf file with the ...
Viewing a Deleted File in Git
I've deleted a file with Git and then committed, so the file is no longer in my working copy. I want to look at the contents of that file, but not actually restore it. How can I do this?
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