How to pass two strings to a PowerShell function?

Question

How do I pass $dir and $file, then concatenate them to a single path?

Output:

posh> 
posh> pwsh ./worker.ps1
dir is /home/nicholas/powershell/regex a.log
file is 
full is /home/nicholas/powershell/regex a.log/
posh>

library:

function SearchFile($dir,$file)
{
"dir is $dir"
"file is $file"

$full = [string]::Concat("full is ",$dir,"/",$file)
$full
#$pattern='(?=.*?foo)(?=.*?bar)'
#$string = Get-Content $full
#$result = $string | Select-String $pattern
#$result
}

worker:

. /home/nicholas/powershell/functions/library.ps1


$dir = "/home/nicholas/powershell/regex"
$file = "a.log"

SearchFile($dir,$file)

I seem to be passing an array of sorts for $dir and nothing is getting assigned for $file in SearchFile as expected.

when calling a function, DO NOT use () around your function parameters. [grin] just put them there something like SearchFile $dir $file. — Lee_Dailey
– Lee_Dailey, Commented Feb 22, 2021 at 6:20
you are most welcome! glad to have helped a bit ... [grin] — Lee_Dailey
– Lee_Dailey, Commented Feb 22, 2021 at 7:39
yes, believe it or not, I actually have a powershell book on my kindle. it covers everything I don't need to know..lol. I just randomly stumbled on how to even declare functions as above. — Nicholas Saunders
– Nicholas Saunders, Commented Feb 22, 2021 at 7:43

user15242289 · Accepted Answer · 2021-02-22 11:13:52Z

2

Can be done in a simpler way :

function SearchFile ($var_1, $var_2) {
    $full_path = "$var_1/$var_2"
    $full_path # Output --> C:/temp/test.txt
}

$my_dir  = "C:/temp"
$my_file = "test.txt"

SearchFile $my_dir $my_file # Do not use coma when calling a Function

answered Feb 22, 2021 at 11:13

user15242289

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