[PowerShell] Convert 1 digit number to 2 digit number

[HungryHippos]

Hi all,

Is there a way in PowerShell to convert a one digit number to a two digit number?

For example:

$count = 1..10 ; foreach ($number in $count) {$number}

Loops through numbers 1 to 10 and returns them as values $number.

when run you get this:

1
2
3
4
5
6
7
8
9
10

I want this returned instead:

01
02
03
04
05
06
07
08
09
10

So if number is less than 9 it adds a 0 on the front.

I was thinking something like:

$count = 1..10 ; foreach ($number in $count)
	{
		if ($number -le 9)
		{
		$number = "0" + $number
		}
	$number
	}

If you run this you do get:

01
02
03
04
05
06
07
08
09
10

But it doesn't seem very elegant, is there a better way?

Thanks!

 

[JHeaton]

"{0:D2}" -f $number

The above can be used to format a number and make sure it is at least two digits.

 

[HungryHippos]

"{0:D2}" -f $number

The above can be used to format a number and make sure it is at least two digits.

Legend thanks!

P.S Knew about the formatting for decimal places didn't know you could add digits with it though

 

[JHeaton]

Legend thanks!

P.S Knew about the formatting for decimal places didn't know you could add digits with it though

Yeah, it's one of those things that seems to be less well-known, here at least. Just got to be a bit careful if you want to add leading zeroes on a floating-point number.

 

[HungryHippos]

This is what I was trying to achieve btw, seems to work good now

$CurrentDate = Get-Date
$Time = ""
[string]$Time = "{0:D2}" -f ($CurrentDate.hour) + ":" + "{0:D2}" -f ($CurrentDate.minute) + ":" + "{0:D2}" -f ($CurrentDate.second)

Just wanted the current time in hours:mins:secs to be consistently 2 digits across em all!

 

[Roberto Perez]

I know I'm seriously late to the party (by about a decade)... anyways, you could try the following also:

[string]$time = Get-Date -f HH:mm:ss

 

[HungryHippos]

I know I'm seriously late to the party (by about a decade)... anyways, you could try the following also:

[string]$time = Get-Date -f HH:mm:ss

My post was literally 9 years ago