Write to the output between two pipeline
I'm trying to write to the output (echo) within two pipe to have a trace of what I'm doing but I have an error.
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Write-Output "deleting file" -PassThru |
Remove-Item
but I have this error :
Write-Output : The input object cannot be bound to any parameters for the command either because the command does not take pipeline input or the input and its properties do not match any of the parameters that take pipeline input.
I also tested in the Foreach-Object function
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Foreach-Object {
echo "deleting $($_.Name)";
Remove-Item($_);
}
but here nothing is printed in the console (but the script finish without error and deleted the files I wanted)
So how can I print to thje output wihtin two Pipe ?
Thx
powershell pipe echo
asked Nov 19 '18 at 9:54
ZouZou
687
add a comment |
I'm trying to write to the output (echo) within two pipe to have a trace of what I'm doing but I have an error.
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Write-Output "deleting file" -PassThru |
Remove-Item
but I have this error :
Write-Output : The input object cannot be bound to any parameters for the command either because the command does not take pipeline input or the input and its properties do not match any of the parameters that take pipeline input.
I also tested in the Foreach-Object function
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Foreach-Object {
echo "deleting $($_.Name)";
Remove-Item($_);
}
but here nothing is printed in the console (but the script finish without error and deleted the files I wanted)
So how can I print to thje output wihtin two Pipe ?
Thx
powershell pipe echo
asked Nov 19 '18 at 9:54
ZouZou
687
That probably means the condition in yourwhereis not true for any file?
– marsze
Nov 19 '18 at 10:02
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
In the 2nd script either use$_ | Remove-Itemor in the 1st insert| Tee-Object -Variable Deleted |instead of Write-Output and later output$Deleted
– LotPings
Nov 19 '18 at 10:34
add a comment |
I'm trying to write to the output (echo) within two pipe to have a trace of what I'm doing but I have an error.
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Write-Output "deleting file" -PassThru |
Remove-Item
but I have this error :
Write-Output : The input object cannot be bound to any parameters for the command either because the command does not take pipeline input or the input and its properties do not match any of the parameters that take pipeline input.
I also tested in the Foreach-Object function
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Foreach-Object {
echo "deleting $($_.Name)";
Remove-Item($_);
}
but here nothing is printed in the console (but the script finish without error and deleted the files I wanted)
So how can I print to thje output wihtin two Pipe ?
Thx
powershell pipe echo
asked Nov 19 '18 at 9:54
ZouZou
687
I'm trying to write to the output (echo) within two pipe to have a trace of what I'm doing but I have an error.
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Write-Output "deleting file" -PassThru |
Remove-Item
but I have this error :
Write-Output : The input object cannot be bound to any parameters for the command either because the command does not take pipeline input or the input and its properties do not match any of the parameters that take pipeline input.
I also tested in the Foreach-Object function
Get-ChildItem $path -Recurse |
Where-Object { $_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate } |
Foreach-Object {
echo "deleting $($_.Name)";
Remove-Item($_);
}
but here nothing is printed in the console (but the script finish without error and deleted the files I wanted)
So how can I print to thje output wihtin two Pipe ?
Thx
powershell pipe echo
powershell pipe echo
asked Nov 19 '18 at 9:54
ZouZou
687
asked Nov 19 '18 at 9:54
ZouZou
687
asked Nov 19 '18 at 9:54
ZouZou
687
asked Nov 19 '18 at 9:54
ZouZou
687
asked Nov 19 '18 at 9:54
ZouZou
687
687
That probably means the condition in yourwhereis not true for any file?
– marsze
Nov 19 '18 at 10:02
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
In the 2nd script either use$_ | Remove-Itemor in the 1st insert| Tee-Object -Variable Deleted |instead of Write-Output and later output$Deleted
– LotPings
Nov 19 '18 at 10:34
add a comment |
That probably means the condition in yourwhereis not true for any file?
– marsze
Nov 19 '18 at 10:02
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
In the 2nd script either use$_ | Remove-Itemor in the 1st insert| Tee-Object -Variable Deleted |instead of Write-Output and later output$Deleted
– LotPings
Nov 19 '18 at 10:34
That probably means the condition in your
where is not true for any file?– marsze
Nov 19 '18 at 10:02
That probably means the condition in your
where is not true for any file?– marsze
Nov 19 '18 at 10:02
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
In the 2nd script either use
$_ | Remove-Item or in the 1st insert | Tee-Object -Variable Deleted | instead of Write-Output and later output $Deleted– LotPings
Nov 19 '18 at 10:34
In the 2nd script either use
$_ | Remove-Item or in the 1st insert | Tee-Object -Variable Deleted | instead of Write-Output and later output $Deleted– LotPings
Nov 19 '18 at 10:34
add a comment |
1 Answer
1
active
oldest
votes
Write-Output sends output to the pipeline. It accepts input via pipeline or argument, but not both, so you can do this:
Write-Output "Test"
or this:
"Test" | Write-Output
but not this:
"Test" | Write-Output "Test"
Solution:
Get-ChildItem $path -Recurse | where {
$_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate
} | foreach {
# Write-Host writes to the console only
Write-Host "Deleting $($_.Name)"
Remove-Item $_
}
Mind that Remove-Item expects a string argument, so everything you pass will be converted to string. Casting a FileInfo object to string might not always return the full path (because of its implementation of ToString()) depending on how it was created!
In the example above, it is safe to use, but this for instance will throw an an exception (if your current working directory is not $path):
(Get-Item $path).GetFiles() | foreach { Remove-Item $_ }
So it's always safest to use $_.FullName.
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
thx for your reply. AboutRemove-Item, apparently it can deal with $_ alone. No need to specify the fullName.
– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Write-Output sends output to the pipeline. It accepts input via pipeline or argument, but not both, so you can do this:
Write-Output "Test"
or this:
"Test" | Write-Output
but not this:
"Test" | Write-Output "Test"
Solution:
Get-ChildItem $path -Recurse | where {
$_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate
} | foreach {
# Write-Host writes to the console only
Write-Host "Deleting $($_.Name)"
Remove-Item $_
}
Mind that Remove-Item expects a string argument, so everything you pass will be converted to string. Casting a FileInfo object to string might not always return the full path (because of its implementation of ToString()) depending on how it was created!
In the example above, it is safe to use, but this for instance will throw an an exception (if your current working directory is not $path):
(Get-Item $path).GetFiles() | foreach { Remove-Item $_ }
So it's always safest to use $_.FullName.
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
thx for your reply. AboutRemove-Item, apparently it can deal with $_ alone. No need to specify the fullName.
– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
add a comment |
Write-Output sends output to the pipeline. It accepts input via pipeline or argument, but not both, so you can do this:
Write-Output "Test"
or this:
"Test" | Write-Output
but not this:
"Test" | Write-Output "Test"
Solution:
Get-ChildItem $path -Recurse | where {
$_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate
} | foreach {
# Write-Host writes to the console only
Write-Host "Deleting $($_.Name)"
Remove-Item $_
}
Mind that Remove-Item expects a string argument, so everything you pass will be converted to string. Casting a FileInfo object to string might not always return the full path (because of its implementation of ToString()) depending on how it was created!
In the example above, it is safe to use, but this for instance will throw an an exception (if your current working directory is not $path):
(Get-Item $path).GetFiles() | foreach { Remove-Item $_ }
So it's always safest to use $_.FullName.
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
thx for your reply. AboutRemove-Item, apparently it can deal with $_ alone. No need to specify the fullName.
– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
add a comment |
Write-Output sends output to the pipeline. It accepts input via pipeline or argument, but not both, so you can do this:
Write-Output "Test"
or this:
"Test" | Write-Output
but not this:
"Test" | Write-Output "Test"
Solution:
Get-ChildItem $path -Recurse | where {
$_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate
} | foreach {
# Write-Host writes to the console only
Write-Host "Deleting $($_.Name)"
Remove-Item $_
}
Mind that Remove-Item expects a string argument, so everything you pass will be converted to string. Casting a FileInfo object to string might not always return the full path (because of its implementation of ToString()) depending on how it was created!
In the example above, it is safe to use, but this for instance will throw an an exception (if your current working directory is not $path):
(Get-Item $path).GetFiles() | foreach { Remove-Item $_ }
So it's always safest to use $_.FullName.
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
Write-Output sends output to the pipeline. It accepts input via pipeline or argument, but not both, so you can do this:
Write-Output "Test"
or this:
"Test" | Write-Output
but not this:
"Test" | Write-Output "Test"
Solution:
Get-ChildItem $path -Recurse | where {
$_.Name -match '.+?.log.(d{4})-(d{2})-(d{2})$' -and $_.LastWriteTime -lt $deleteDate
} | foreach {
# Write-Host writes to the console only
Write-Host "Deleting $($_.Name)"
Remove-Item $_
}
Mind that Remove-Item expects a string argument, so everything you pass will be converted to string. Casting a FileInfo object to string might not always return the full path (because of its implementation of ToString()) depending on how it was created!
In the example above, it is safe to use, but this for instance will throw an an exception (if your current working directory is not $path):
(Get-Item $path).GetFiles() | foreach { Remove-Item $_ }
So it's always safest to use $_.FullName.
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
edited Nov 20 '18 at 7:44
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
answered Nov 19 '18 at 11:00
marszemarsze
5,12331841
5,12331841
thx for your reply. AboutRemove-Item, apparently it can deal with $_ alone. No need to specify the fullName.
– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
add a comment |
thx for your reply. AboutRemove-Item, apparently it can deal with $_ alone. No need to specify the fullName.
– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
thx for your reply. About
Remove-Item, apparently it can deal with $_ alone. No need to specify the fullName.– Zou
Nov 19 '18 at 16:08
thx for your reply. About
Remove-Item, apparently it can deal with $_ alone. No need to specify the fullName.– Zou
Nov 19 '18 at 16:08
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
@Zou That's only partly true. I've updated my answer to be more clear.
– marsze
Nov 20 '18 at 7:45
add a comment |
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That probably means the condition in your
whereis not true for any file?– marsze
Nov 19 '18 at 10:02
@marsze the condition is correct.The script works well when I remove the "Write-Output pipe"
– Zou
Nov 19 '18 at 10:28
In the 2nd script either use
$_ | Remove-Itemor in the 1st insert| Tee-Object -Variable Deleted |instead of Write-Output and later output$Deleted– LotPings
Nov 19 '18 at 10:34