Powershell loop iteration

Question

#gets the file location/file name of the IP address
Param($addr)
$file = Get-Content $addr
$i = 0
while ($i -ne $file.Count) {
  Write-Host $file
  $i++
}

Output:

8.8.8.8 127.0.0.1 208.67.222.222
8.8.8.8 127.0.0.1 208.67.222.222
8.8.8.8 127.0.0.1 208.67.222.222

File content:

8.8.8.8
127.0.0.1
208.67.222.222

I only want it to iterate and print out one line, not all three lines on a single line 3 times. I need this so I can run a ping command on each address.

If you only want one line then you should be indexing, which you are not currently, in your line write-host $file. So the simple fix would be to $file[$i]. But you could be using different loop structures alltogether. get-content $addr | Foreach-Object{ "do something with $_"} — Matt
– Matt, Commented Apr 19, 2017 at 16:13

Moerwald · Accepted Answer · 2017-04-19 17:17:36Z

1

You've to use the index operator [] on $file.

#gets the file location/file name of the IP address
param($addr)
$file = get-content $addr
$i=0 
while ($i -ne $file.count){
   write-host $file[i]
   $i++
}

answered Apr 19, 2017 at 17:17

Moerwald

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Comments

Esperento57 · Accepted Answer · 2017-04-20 14:15:54Z

0

you can use $_ as file row with pipe like this :

Param($addr)
Get-Content $addr | foreach{ $_ }


#short version
Param($addr)
gc $addr | %{ $_ }

answered Apr 20, 2017 at 14:15

Esperento57

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