how to count number of certain char within string

[Frank]

Hi,

If I have a variable string, ie:

$test="one,two,thr"

or

$test="one,two,thr,four,five"

What is the best way to find the number of "," in the string? index?

Thanks in advance,

[Martin Zugec]

What about
"one,two,three".Split(",") | measure-object or ("one,two,three".Split(",") |
measure-object).Count to get integer?

Martin

"Frank" <Fr...@discussions.microsoft.com> wrote in message
news:6E711425-483C-4B06...@microsoft.com...

[Kiron]

$test="one,two,thr,four,five"

 

$char = ','
$result = 0..($test.length - 1) | ? {$test[$_] -eq $char}

 

# how many?
$result.count

 

# indices
$result

 

# verify
$result | % {$test[$_]}

--
Kiron

[Frank]

Why is the count always one more than it really is? There are 2 "," but the
count is 3.

[Shay Levy [MVP]]

PS > [regex]::matches($test,",").count
4

---
Shay Levy
Windows PowerShell MVP
blog: http://blogs.microsoft.co.il/blogs/ScriptFanatic

F> Hi,
F>
F> If I have a variable string, ie:
F>
F> $test="one,two,thr"
F>
F> or
F>
F> $test="one,two,thr,four,five"
F>
F> What is the best way to find the number of "," in the string? index?
F>
F> Thanks in advance,
F>

[Karl Mitschke]

Hello Frank,

The count starts at 0.

The first object is 0
The second is 1
On and on :)

[Karl Mitschke]

ACK - Should have read the question better - sorry :)

What are you actually counting?

In

"one,two,three".Split(",") | measure-object

You are splitting on the "," - so, there are three itens, one, two, and three.

If your requirements are really this simple (the number of commas in a string)
you would have to take the output and subtract 1 like

("one,two,three".Split(",") |measure-object).Count -1

Karl

[Roman Kuzmin]

Performance remark. Using of Measure-Object is redundant - Split() returns
an array, property Count perfectly works for it:

"one,two,three".Split(",").Count - 1

--
Thanks,
Roman Kuzmin

http://code.google.com/p/farnet/
PowerShell and .NET in FAR Manager

[Karl Mitschke]

Hello Roman,

An excellent point - I should not created my own example for the OP instead
of copying :)

Thanks

Karl

> Performance remark. Using of Measure-Object is redundant - Split()
> returns an array, property Count perfectly works for it:
>
> "one,two,three".Split(",").Count - 1
>