Test-OnlineFast is a (great) custom function which creates an array with the following output incredibly quickly:
I can use this output on its own, but if I want to list just the addresses using the commands:
$Pinged = Test-OnlineFast $MyIPList.ipaddress
$Pinged.Address
I receive the output:
Even though the array is a standard type:
This prevents me from doing things like comparing the array to another and matching the addresses.
Is there any way to 'convert' the array, so I can use it in this way? I've tried exporting it to a CSV or text file, and importing, but it's the same.
You could convert the array to a List<psobject>:
$list = [System.Linq.Enumerable]::ToList([psobject[]]$Array)
Since List<psobject> doesn't have a property called Address, you can now rely on property enumeration:
$list.Address
Related
I need to iterate and parse 108 lines from a file and then sort them into 3 different hashes. (In one iterator.) (In Ruby)
I have the file loaded into the program and into the array I need to parse. When I try to make the iterator anyway I try to use the Regex Match command I get an error abut the unknown method. Is as simple that I can't use that method on a array?
lines = File.readlines('access_log')
lines.each.match(/^([:\d\.]+) .*\[.*\].*\"[A-Z]+ *(.+) HTTP/)
This and every other way I have tried to use the match method it hasn't worked.
This also doesn't anything for the hash, as I haven't done that yet.
/^([:\d\.]+) .*\[.*\].*\"[A-Z]+ *(.+) HTTP/.match(lines)
Have also tried this, but the error output appears that you cant run it on only the array. I beilive this is where I would need to tie the iterator in, but I'm stumped.
So, what's happening is that what readlines does is it slurps the entire text file.
So you have an array with the content of the textfile separated by a newline(and the newline is kept in every string in the array).
After that, you're doing lines.each, which brings out an enumerator. Then you're calling .match on the enumerator instead of the string itself
The proper way to do this would be
lines.each { |line| line.match(/^([:\d\.]+) .*\[.*\].*\"[A-Z]+ *(.+) HTTP/) }
However, the above actually won't do anything because all you're doing is iterating against each element and checking if it matches the REGEX.If you want it to actually do something, try...
matches = lines.map { |line| line.match(/^([:\d\.]+) .*\[.*\].*\"[A-Z]+ *(.+) HTTP/) }
Remember that the match method only works on strings. If match matches something, it returns an object of the class MatchData, else if it doesn't match anything-- nil.
When using the MATLAB jsonencode function it seems very difficult to convert size 1 arrays into the correct JSON format i.e. [value]. For example if I do:
jsonencode(struct('words', [string('hello'), string('bye')]))
Then this produces:
{"words":["hello","bye"]}
which is correct. If however I do:
jsonencode(struct('words', [string('hello')]))
Then it produces:
{"words":"hello"}
losing the square brackets, which it needs because it is in general an array. The same happens when using a cell rather than an array, although using a cell does work if it's not inside a struct.
Any idea how I can work around this issue?
It seems this can be solved by using a cell rather than an array and then not creating the struct inline. Like
s.words = {'hello'};
jsonencode(s)
Output:
{"words":["hello"]}
I presume when created inline the cell functionality of matlab is actually trying to make multiple structs rather than multiple strings. Note that this still won't work with arrays as matlab treats a size one array as a scalar.
I cannot seem to find anything about using the values of one property of an object in a foreach loop (without having the entire object placed into the loop).
I first create a function called UFGet-Servers that uses Get-ADComputer and returns the names of the servers in a specific OU in my environment and places them in an array. That's great, except that when I use the array in a foreach loop, each object that it grabs has #[Name=serverName] in it, which I cannot use in any useful manner. The following pseudo-code is an abbreviated example:
foreach($Computer in $ComputerNames){do code... code is adding the server name into a UNC path such as "\\$Computer\C$\"}
The problem with the above is that you can't add the whole object to a path -- it ends up looking like "\#[Name=serverNameHere]\C$\" which totally bombs out. How do I get rid of the "#[property=" part, and simply use the value as the $Computer in the loop?
What really weirds me out is that I can't find a straightforward article on this anywhere... would have thought everyone and their mom would have wanted to do something like this.
So, your issue isn't with ForEach loops, it is with string formatting. There are two ways that I know of to take care of what you need. First is going to be string formatting, which allows you to use {0}m {1} and so on to inject values into a string, providing that you follow the string with -f and a list of said values. Such as:
ForEach($Computer in $ComputerNames){
"The Server Path is \\{0}\Share$" -f $Computer.Name
}
The second way is a sub-expression (I'm sure somebody will correct me if I used the wrong term there). This one involves enclosing the variable and desired property (or a function, or whatever) inside $(). This will evaluate whatever is inside the parenthesis before evaluating the string. See my example:
ForEach($Computer in $ComputerNames){
"The Server Path is \\$($Computer.name)\Share$"
}
I can append to a single array using
{append var='name' value='Bob' index='first'}
However, if I have a multi-dimensional array such as:
$name[first][last] = ['this','array']
and I want to append another value to the array at $name[first][last] e.g. to make the array like this:
$name[first][last] = ['this','array','appended']
how can I do this in the smarty template?
You can do this without using append:
{$name[first][last][] = 'this'}
{$name[first][last][] = 'array'}
{$name[first][last][] = 'appended'}
I must highlight though - templates should be used for specific purpose: to display prepared data; having to do the above is a code smell
I've tested many cases to try achieve it and I think it's not possible (in documentation there is also no info or example of multidimensional key or var)
You should also really think do you need it at all. Logic should be in PHP and role of Smarty is only displaying data not manipulating them
How do you save an array or an ArrayList in VB.NET using My.Settings? I cannot find the array type anywhere, even in the browse window.
I know I can convert the array to a string, but I do not know how to convert a string to an array. I know that if I were to break it at a delimiter then I could convert a string to an array, but my problem is that any text at all could be stored within the array as a single value, so I cannot pick a delimiter that is unlikely to be used.
I was also facing the same problem and I came up with a solution to this.
Here are the steps:
Open up the properties of your app and select settings
select the setting name and then where it says type click on the
arrow and select browse.
in the browse window type in system.collections.arraylist and hit enter!
there you have your array!
You can use array like this:
your_array_name(here_comes_the_item_no.) = whatever
What kind of array? I've had luck using StringCollection for strings. ArrayList works for most anything else (and that's about the only place I'd use arraylist).
I would either use the StringCollection type, and just convert your elements to/from strings when storing them in my.settings, or use XML Serialization to turn the array in to an xml string, and store that in my.settings.