argument-passing

I understand that in Postgres pure, you can pass an integer array into a function but that this isn't supported in the .NET data provider Npgsql. I currently have a DbCommand into which I load a call to a stored proc, add in a parameter and execute scalar to get back an Id to populate an object with. This now needs to take n integers as arguments. These are used to create child records linking the newly created record by it's id to the integer arguments. Ideally I'd rather not have to make multiple ExecuteNonQuery calls on my DbCommand for each of the integers, so I'm about to build a csv

I am using a bash script to call and execute a .jar file from any location without having to constantly enter its explicit path. The .jar requires additional variable parameters to be specified at execution, and as these can be anything, they cannot be hard coded into the script. There are 3 variables in total, the first specifies 1 of 2 actions that the .jar is to make, the second specifies a target file to enact this action on and the third specifies the name of a file that the action is to create. The script I am currently using is: #!/bin/bash java -jar "C:\path\to\file.jar" "$1" "$2" "$3"

How can I receive a file as a command-line argument? Just the path of the file is passed, inside your program use the Java File class to handle it This takes the first parameter as the file path: import java.io.File; public class SomeProgram { public static void main(String[] args) { if(args.length > 0) { File file = new File(args[0]); // Work with your 'file' object here } } } in Java, the main method receives an array of String as argument, as you probably have noticed. you can give another name to the parameter args , but this is the most used one. the array args contains the values of what

I know how to execute remote bash script, via these syntaxes: curl http://foo.com/script.sh | bash or bash < <( curl http://foo.com/script.sh ) which give the same result. But what if I need to pass arguments to the bash script ? It's possible when the script is saved locally: ./script.sh argument1 argument2 I tried several possibilities like this one, without success: bash < <( curl http://foo.com/script.sh ) argument1 argument2 try curl http://foo.com/script.sh | bash -s arg1 arg2 bash manual says: If the -s option is present, or if no arguments remain after option processing, then commands

Why do argument list in some methods end with nil ? I have noticed this particularly in the collection classes, for example NSSet : mySet = [NSSet setWithObjects:someData, aValue, aString, nil]; and NSArray : NSArray *objects = [NSArray arrayWithObjects:@"value1", @"value2", @"value3", nil]; It has to do with how variable argument lists work ( va_list , seen as ... in the parameters). When the code is trying to extract all of the values in the list, it needs to know when to stop (because it doesn't know how many there are). We denote the end of the list with a special value called a "sentinel"