Hello I'm new with PowerShell. I have a string that I'm trying to add an "-" between every third char.
00255D413701 -> 00-25-5D-41-37-01
Anyone has an idea how to do this the easiest way?
(?<=\G.{2})(?!$) might do the trick using regex and -replace:
'00255D413701' -replace '(?<=\G.{2})(?!$)', '-'
See https://regex101.com/r/MWOSie/1 for details.
Related
I want to add text after exactly 20 characters inklusiv blanks. Does someone have a short solution with add-content or can post a link where i can read about a way to do so.
My file looks somthing like this:
/path1/path1/path1 /path2/path2/path2 /path3/path3/path3
than an application will read this pahts (not my application and i can not edit it in any way) the application will read these paths and it will read them on their position so if the second path starts 10 characters later it wont recognize it, so i can not simply replace the path or edit it easy sinc the path has not always the same lenght. Why the application reads it that way dont ask me.
So i need to add a string at start than the next string at exactly character 20 and than the next at charcter 40.
You could use the regex -replace operator to inject a new substring after 20 characters:
PS ~> $inject = "Hello Manuel! ..."
PS ~> $string = "Injected text goes: and then there's more"
PS ~> $string -replace '(?<=^.{20})',$inject
Injected text goes: Hello Manuel! ...and then there's more
The regex pattern (?<=^.{20}) describes a position in the string where exactly 20 characters occur between the start of the string and the current position, and the -replace operator then replaces the empty string at said position with the value in $inject
This did it for me
$data.PadRight(20," ") | Out-File -FilePath F:\test\path.txt -NoNewline -Append
I'm trying to make a GUI that will print the information from a textbox into a .txt in a way that I will try to explain as well as I can.
$TextBox_UsbName.text = "TestingTesting"
$Button_SetUsbName.Add_Click({ $Value_UsbName = $TextBox_UsbName.text; add-content -path $Value_NewScriptPath -value "$usbname = $Value_UsbName" })
After this is run I was hoping the text file would contain this:
$usbname = "TestingTesting"
I am still new to Powershell as well as coding in general and now I am really stuck I have tried a lot of different ways.
Any ideas and help would be much appreciated.
Edit: My result is
=
In Powershell double quoted string literals, string interpolation takes place each time an unescaped $ appears with a valid identifier characters after it. To introduce a literal $ that should not be parsed as part of an interpolated variable, you should escape it with a backtick, `.
Here is some quick string interpolation help:
How do I expand an expression in a string?
Windows PowerShell will expand a variable or an expression in a string.
Variables look like: $variable
Expressions look like: $(expression)
So, your "$usbname = $Value_UsbName" is interpreted by the engine as value of $usbname variable followded with = enclosed with spaces, and then a value of $Value_UsbName variable.
What you want to add is a literal $usbname substring and the value of $TextBox_UsbName.text expression.
So, either use
"`$usbname = $($TextBox_UsbName.text)"
Or just concatenate values (in a culture independent way):
$usbname + ' = ' + $TextBox_UsbName.text
Why I cannot use str_replace() to replace content between the ""? While I replace links within a file they get skipped since they are within quotes.
Example.
href="/path/to/file/is/here"
should be
href="/New/Path/To/File/Goes/Here"
If the paths/urls were not in quotes, str_replace() would work.
I'm assuming this is PHP. So, from the examples here:
http://php.net/manual/en/function.str-replace.php
You can see that you should not intercalate the same type of quotes.
So try changing the quotes in your code to single quotes or, change, the double quotes in your html to single quotes.
If that's not it, I hope at least that doc reference helps you.
This might help I usually code in java but php is pretty similar. Next time input part of your code so that the community can see your logic.
In your if statement on line 67 the 3rd variable $stringToSearch should be regex not the string your assigning it to. The purpose of regex as you know is to replace characters you don't want in your code as you already know
What you had that was not working:
// replacing string from files
//$stringToSearch = str_replace('"', "!!", $stringToSearch);
$stringToSearch = str_replace($toBeReplaced, $toBeReplacedWith, $stringToSearch);
//$stringToSearch = str_replace("!!", '"', $stringToSearch);
What I am thinking it should be:
$stringToRegex = str_replace('"', "!!", $stringToSearch);
$stringToSearch = str_replace($toBeReplaced, $toBeReplacedWith, $stringToRegex );
If anyone else has any suggestion it would be appreciated as i don't code in php.
Can anyone recommend a short and efficient way of validating the contents of the variable $name, so that it will conform with the following:
Only English alphanumeric characters
Dots "." are allowed
Dashes "-" are allowed
Length should not exceed 10 characters
I can think of long, cumbersome ways of doing that, but I would much rather use an elegant implementation. Something like preg_match in php.
I'll be running it with PowerShell on Windows 2012 Server.
Thank you!
try this:
$string="tEst-.gg"
If ($string -match '^[a-z0-9.-]{1,10}$')
{
"OK"
}
If you want autorise empty string, replace {1,10} by {0,10}
I'm trying to write a script that that will remove everything except text contained in quotation marks from a result-set generated by a SQL query. Not sure whether trim or -replace will do this.
Here is a sampling of the result-set:
a:5:{s:3:"Client Service";a:4:{s:15:"Client Training";b:0;s:11:"Payer
Error";
I would like it to end up looking like this:
Client Service
Client Training
Payer Error
I've tried everything I know to do in my limited PowerShell and RegEx familiarity and still haven't been able to figure out a good solution.
Any help would be greatly appreciated.
$s = 'a:5:{s:3:"Client Service";a:4:{s:15:"Client Training";b:0;s:11:"Payer Error";'
Replace the start of string up to the first quote, or the last quote up to the end of string. Then what you're left with is:
Client Service";a:4:{s:15:"Client Training";b:0;s:11:"Payer Error
Now the bits you don't want are "in quotation marks" and that's easy to match with ".*?" so replace that with a space.
Overall, two replaces:
$s -replace '^[^"]*"|"[^"]*$' -replace '".*?"', ' '
Client Service Client Training Payer Error
Here's a version that uses Regex to capture the strings including their quotes in to an array and then removes the quote marks with -replace:
$text = 'a:5:{s:3:"Client Service";a:4:{s:15:"Client Training";b:0;s:11:"Payer Error";'
([regex]::matches($Text, '(")(.*?)(")')).value -replace '"'
There's without a doubt a regex to get the strings without their quotes in the first place but i'm a bit of a regex novice.