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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; ...
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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...
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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 ...
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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...
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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 &...
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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 ...
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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",...
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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...
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Can anyone explain CreatedAtRoute() to me?

...ss CompanyController : Controller { private ICompanyRepository _companyRepository; public CompanyController(ICompanyRepository companyRepository) { _companyRepository = companyRepository; } [HttpGet("{id}", Name="GetCompany")] public ...
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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 ...