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In Perl, how can I read an entire file into a string?
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Add:
local $/;
before reading from the file handle. See How can I read in an entire file all at once?, or
$ perldoc -q "entire file"
See Variables related to filehandles in perldoc perlvar and perldoc -f local.
Incidentally, if you can put you...
Pass ruby script file to rails console
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You can use
bundle exec rails runner "eval(File.read 'your_script.rb')"
UPDATE:
What we also have been using a lot lately is to load the rails environment from within the script itself. Consider doit.rb:
#!/usr/bin/env ruby
require "/path/to/rails_app/config/environme...
How to create directory automatically on SD card
... the directory you want (assuming you're using API 8 or greater).
You can read more in the SDK documentation.
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How to get an MD5 checksum in PowerShell
...$hash = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::ReadAllBytes($someFilePath)))
Starting in PowerShell version 4, this is easy to do for files out of the box with the Get-FileHash cmdlet:
Get-FileHash <filepath> -Algorithm MD5
This is certainly preferable since ...
How can I read and parse CSV files in C++?
.....)
then its only about three lines of code (OK 14 ->But its only 15 to read the whole file).
std::vector<std::string> getNextLineAndSplitIntoTokens(std::istream& str)
{
std::vector<std::string> result;
std::string line;
std::getline(str,line);
st...
Config Error: This configuration section cannot be used at this path
...gation from the root of IIS:
You can then control each of machine-level read/write permissions, which will otherwise give you the overrideMode="Deny" errors.
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How can I display a pdf document into a Webview?
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You can use Google PDF Viewer to read your pdf online:
WebView webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
String pdf = "http://www.adobe.com/devnet/acrobat/pdfs/pdf_open_parameters.pdf";
webview.loadUr...
How do I check if a number evaluates to infinity?
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@Eli: The global Infinity property isn't read-only which means that it can be redefined: For example, var x = 42; Infinity = 42; alert(x === Infinity); displays "true". (Admittedly that's an obscure case, and anyone who decides to redefine Infinity, NaN etc should e...
When should I use malloc in C and when don't I?
...ing constant. That means the string "Hello World" will be somewhere in the read-only part of the memory and you just have a pointer to it. You can use the string as read-only. You cannot make changes to it. Example:
some_memory[0] = 'h';
Is asking for trouble.
On the other hand
some_memory = (...
OpenSSL and error in reading openssl.conf file
...ine but I was using that command in the openssl.exe instead of cmd.exe.. I read your comment and went to cmd.exe and typed the set command there instead. It worked correctly but I was still getting the same error in the openssl.exe saying "Unable to load config info from wrong_path/ssl/openssl.cnf" ...