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How to list all users in a Linux group?
...rs;
my $usertext = `getent passwd`;
my @users = $usertext =~ /^([a-zA-Z0-9_-]+):/gm;
foreach my $userid (@users)
{
my $usergrouptext = `id -Gn $userid`;
my @grouplist = split(' ',$usergrouptext);
foreach my $group (@grouplist)
{
$groupmembers{$group}->{$userid} = 1;
...
ipython: print complete history (not just current session)
...
First use %hist -o -g -f ipython_history.md to output the history (input and output) to a text file. (http://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-history)
Then you can use the the get_session_info function to retreive the date and...
Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
...tabase tables (instead of "dbo").
More importantly it will also prefix the __MigrationHistory table(s), e.g. Customer.__MigrationHistory.
So you can have more than one __MigrationHistory table in a single database, one for each context.
So the changes you make for one context will not mess with the ...
Parsing a string into a boolean value in PHP
...
There is a native PHP method of doing this which uses PHP's filter_var method:
$bool = filter_var($value, FILTER_VALIDATE_BOOLEAN);
According to PHP's manual:
Returns TRUE for "1", "true", "on" and "yes". Returns FALSE otherwise.
If FILTER_NULL_ON_FAILURE is set, FALSE is return...
Javascript fuzzy search that makes sense
... asked for though. Also, this can be expensive if the list is massive.
get_bigrams = (string) ->
s = string.toLowerCase()
v = new Array(s.length - 1)
for i in [0..v.length] by 1
v[i] = s.slice(i, i + 2)
return v
string_similarity = (str1, str2) ->
if str1.length &...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
... Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc?
– Thomas
Dec 14 '14 at 16:11
...
How does Rails keep track of which migrations have run for a database?
...
Rails creates a table in your database called schema_migrations to keep track of which migrations have run.
The table contains a single column, version. When Rails runs a migration, it takes the leading digits in the migration's file name and inserts a row for that "version",...
How to sort in mongoose?
...work in mongoose 2.3.0 :)
// Find First 10 News Items
News.find({
deal_id:deal._id // Search Filters
},
['type','date_added'], // Columns to Return
{
skip:0, // Starting Row
limit:10, // Ending Row
sort:{
date_added: -1 //Sort by Date Added DESC
}
},
function(err,allNews...
Can anyone explain CreatedAtRoute() to me?
...ss CompanyController : Controller
{
private ICompanyRepository _companyRepository;
public CompanyController(ICompanyRepository companyRepository)
{
_companyRepository = companyRepository;
}
[HttpGet("{id}", Name="GetCompany")]
public ...
How to encode the filename parameter of Content-Disposition header in HTTP?
...ÆØÅäöüïëêîâéíáóúýñ½§!#¤%&()=`@£$€{[]}+´¨^~'-_,;.txt
On IE7 it works for some characters but not all. But who cares about IE7 nowadays?
This is the function I use to generate safe file names for Android. Note that I don't know which characters are supported on Android ...