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Linux: compute a single hash for a given folder & contents?
...son Output as JSON
-d, --delim=: Character or string delimiter/separator for terse output(default ':')
-l, --max-level=N Do not traverse tree beyond N level(s)
--hash Enable hashing(default is MD5).
-c, --checksum=md5 Valid hashing...
How to import other Python files?
...t__.py.
You can use the __import__ function. It takes the module name as a string. (Again: module name without the '.py' extension.)
pmName = input('Enter module name:')
pm = __import__(pmName)
print(dir(pm))
Type help(__import__) for more details.
...
When would you use a WeakHashMap or a WeakReference?
...xProvider MUTEX_PROVIDER = new IdMutexProvider();
public void performTask(String resourceId) {
IdMutexProvider.Mutex mutext = MUTEX_PROVIDER.getMutex(resourceId);
synchronized (mutext) {
// look up the resource and do something with it
}
}
IdMutextProvider provides id-based ob...
What is the “Execute Around” idiom?
... throws IOException;
}
// Somewhere else
public void executeWithFile(String filename, InputStreamAction action)
throws IOException
{
InputStream stream = new FileInputStream(filename);
try {
action.useStream(stream);
} finally {
stream.close();
}
}
// Calli...
What is AssemblyInfo.cs used for?
...ssembly.GetAssembly(typeof(ProjectName.WebSite.Controllers.MyController));
string version = assembly.GetName().Version.ToString();
and it will be updated each time you upload a new version.
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Jump to matching XML tags in Vim
...is almost the same, but it doesn't include the outer tags.
The 'y' in the string is of course the normal mode "yank" command. (:help y)
a or i can be used for object selection after an operator such as y or inside a visual selection. The symbol after a or i specifies what should be selected. Th...
Difference Between ViewData and TempData?
..., one way only
It’s life lies only during the current request
If passing string then no need to typecast
If passing object then you need to typecast it but before that you need to check if it is not null
Its a property on ControllerBase, which is the parent of Controller class
TempData:
TempD...
How to use Bash to create a folder if it doesn't already exist?
...
First, in bash "[" is just a command, which expects string "]" as a last argument, so the whitespace before the closing bracket (as well as between "!" and "-d" which need to be two separate arguments too) is important:
if [ ! -d /home/mlzboy/b2c2/shared/db ]; then
mkdir -p...
Specify custom Date format for colClasses argument in read.table/read.csv
...
You can write your own function that accepts a string and converts it to a Date using the format you want, then use the setAs to set it as an as method. Then you can use your function as part of the colClasses.
Try:
setAs("character","myDate", function(from) as.Date(fr...
c# why can't a nullable int be assigned null as a value [duplicate]
...
Similarly I did for long:
myLongVariable = (!string.IsNullOrEmpty(cbLong.SelectedItem.Value)) ? Convert.ToInt64(cbLong.SelectedItem.Value) : (long?)null;
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impro...