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What does __FILE__ mean in Ruby?
... file foo.rb, __FILE__ would be interpreted as "foo.rb".
Edit: Ruby 1.9.2 and 1.9.3 appear to behave a little differently from what Luke Bayes said in his comment. With these files:
# test.rb
puts __FILE__
require './dir2/test.rb'
# dir2/test.rb
puts __FILE__
Running ruby test.rb will output
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How to run script as another user without password?
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Call visudo and add this:
user1 ALL=(user2) NOPASSWD: /home/user2/bin/test.sh
The command paths must be absolute! Then call sudo -u user2 /home/user2/bin/test.sh from a user1 shell. Done.
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How to do scanf for single char in C [duplicate]
In C:
I'm trying to get char from the user with scanf and when I run it the program don't wait for the user to type anything...
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How do you tell Resharper that a method parameter is a string containing a CSS class?
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From the Code Annotations currently supported by Resharper 10, the best candidate would to use this attribute. From the above link:
ValueProviderAttribute
For a parameter that is expected to be one of the limited set of
values. Specify fields of which type should be used as values for...
Laravel Migration Change to Make a Column Nullable
...olumns, so you'll need use another technique such as writing a raw SQL command. For example:
// getting Laravel App Instance
$app = app();
// getting laravel main version
$laravelVer = explode('.',$app::VERSION);
switch ($laravelVer[0]) {
// Laravel 4
case('4'):
DB::statement('A...
Laravel Schema onDelete set null
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You might want to roll back, write out the sql by hand and then execture and run tests on local. Everything I can find says that should work dev.mysql.com/doc/refman/5.6/en/…, could be an issue generating the sql
– Chris Barrett
Jan 1 ...
UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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git pull keeping local changes
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that git checkout --theirs command is very confusing. It did what I wanted once and something really bad another time. Got any good documentation on it?
– Milimetric
Sep 19 '13 at 15:00
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How to make a copy of a file in android?
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To copy a file and save it to your destination path you can use the method below.
public static void copy(File src, File dst) throws IOException {
InputStream in = new FileInputStream(src);
try {
OutputStream out = new File...
Nested select statement in SQL Server
...] (subquery)
WHERE [NOT] EXISTS (subquery)
Check for more subquery rules and subquery types.
More examples of Nested Subqueries.
IN / NOT IN – This operator takes the output of the inner query after the inner query gets executed which can be zero or more values and sends it to the outer query...