Delete line if it includes a specific string - powershell

I have a text file where it will say the computer name and current date they logged in.
04/10/2017, "PC1"
04/10/2017, "PC4"
05/10/2017, "PC3"
09/10/2017, "PC2"
I'm having issues trying to run a script that will look for any line that includes "PC2" and delete that line :
get-content "c:\file.csv" | %{if($_ -match "PC2"){$_ -replace $_, ""}} | set-content c:\file.csv


(Get-Content 'C:\File.csv') -notmatch 'PC2' | Set-Content 'C:\File1.csv'
You can also use regex
File extension is csv
Import-Csv 'C:\File.csv' -Header Logged,Computer |
where {$_.Computer -ne 'PC2'} |
Export-Csv 'C:\File.csv' -NoClobber -NoTypeInformation


(Get-Content -Path 'C:\File.csv') |
Where-Object { $_ -notlike '*PC2*' } |
Set-Content -Path 'C:\File.csv'
Here you go. This utilizes an easier-to-understand wildcard comparison operator and just filters out the lines that have the matched string.

Related

Redundant code, how can I have multiple arguments per line

This script works, I want to condense it so if I add more lines to find and replace in the file I'm not being redundant.
Get-ChildItem C:\Users\JonSa\Desktop -Filter callcounts.xml | Foreach- Object{
(Get-Content $_.FullName) |
Foreach-Object {$_ -replace "#aXXXXX.ac1.vbspbx.com", ""} |
Set-Content $_.FullName
}
Get-ChildItem C:\Users\JonSa\Desktop -Filter callcounts.xml | Foreach- Object{
(Get-Content $_.FullName) |
Foreach-Object {$_ -replace "sip:", ""} |
Set-Content $_.FullName
}
I would like to accomplish this with fewer lines that leaves room for more arguments.

With only one file, don't use Get-ChildItem and a ForEach-Object
when using the -raw -parameter, you can apply the replace on the whole file
you can also append several -replace one after the other.
for the same replacement (here none) you can use an alternation | (OR)
an empty replacement can be omitted with the -replace operator (not so with the .replace() method)
$File = 'C:\Users\JonSa\Desktop\callcounts.xml'
(Get-Content $File -raw) -replace '#aXXXXX.ac1.vbspbx.com|sip:' |
Set-Content $File

Blank first line when using "select-string -pattern" to strip lines from file

I have a simple text file that looks like this...
A,400000051115,null,null,null,null,null,null,null,20190312,090300,Answer Machine,2019,3,14,10,0
A,400000051117,null,null,null,null,null,null,null,20190312,090300,Confirmed,2019,3,14,10,30
A,400000051116,null,null,null,null,null,null,null,20190312,090300,Answer Machine,2019,3,14,11,0
A,400000051114,null,null,null,null,null,null,null,20190312,090300,Wants to Cancel,2019,3,14,9,0
A,400000051117,null,null,null,null,null,null,null,20190312,091800,SMS Sent,2019,3,14,10,30
A,400000051116,null,null,null,null,null,null,null,20190312,091800,SMS Sent,2019,3,14,11,0
A,400000051115,null,null,null,null,null,null,null,20190312,091800,SMS Sent,2019,3,14,10,0
A,400000051116,null,null,null,null,null,null,null,20190312,093000,Appointment Cancelled/Rescheduled Via SMS,2019,3,14,11,0
I need to save all the lines except those that have "SMS Sent" in them to a new file. I am using the following...
get-content $SourceFile.FullName | select-string -pattern 'SMS Sent' -notmatch | Out-File $targetFile
Why in the resulting file do I get a blank first line?

If you change Out-File $targetFile to Out-Host or even just omit that last segment in the pipeline, you will see a blank line in the console output, too.
The output analog of Get-Content is Set-Content, so if you change Out-File $targetFile to Set-Content $targetFile the first line is no longer blank.
Also, since you're working with a CSV file you could use Import-CSV to read the data and Where-Object to filter on that specific column, although a little extra work is required to specify the headers and omit them from the output file...
$csvHeaders = 1..17 | ForEach-Object -Process { "Column $_" }
$csvHeaders[11] = 'Status'
Import-Csv -Path $SourceFile.FullName -Header $csvHeaders `
| Where-Object -Property 'Status' -NE -Value 'SMS Sent' `
| ConvertTo-Csv -NoTypeInformation `
| Select-Object -Skip 1 `
| Set-Content $targetFile
...which writes...
"A","400000051115","null","null","null","null","null","null","null","20190312","090300","Answer Machine","2019","3","14","10","0"
"A","400000051117","null","null","null","null","null","null","null","20190312","090300","Confirmed","2019","3","14","10","30"
"A","400000051116","null","null","null","null","null","null","null","20190312","090300","Answer Machine","2019","3","14","11","0"
"A","400000051114","null","null","null","null","null","null","null","20190312","090300","Wants to Cancel","2019","3","14","9","0"
"A","400000051116","null","null","null","null","null","null","null","20190312","093000","Appointment Cancelled/Rescheduled Via SMS","2019","3","14","11","0"
...to $targetFile. Note that all of the values are quoted now. If your input file does have headers then you could use simply...
Import-Csv -Path $SourceFile.FullName `
| Where-Object -Property 'Status' -NE -Value 'SMS Sent' `
| Export-Csv -NoTypeInformation -LiteralPath $targetFile
In either case the output file will not contain a leading blank line.

PowerShell replacing with wrong symbol

I'm trying to replace £ characters in a CSV with GBP.
I created a test CSV (C:\test\test1) as follows:
col1,
£100 Test
I have managed to write the following code:
Import-Csv C:test\test1.csv |
ForEach { if($_.ou -match "£") {$_.OU = $_.OU -replace "£","GBP"}; $_} |
Export-Csv C:\test\test1replaced.csv -NoTypeInformation
My issue is that in the file created the £ symbol seems to be replaced with ? and not GBP. Can't see what I'm doing wrong.

Quoting the answer of Jeroen Mostert:
Replace :
Import-Csv C:test\test1.csv |
ForEach { if($_.ou -match "£") {$_.OU = $_.OU -replace "£","GBP"}; $_} |
Export-Csv C:\test\test1replaced.csv -NoTypeInformation
With this:
Import-Csv C:test\test1.csv -Encoding UTF8 |
ForEach { if($_.ou -match "£") {$_.OU = $_.OU -replace "£","GBP"}; $_} |
Export-Csv C:\test\test1replaced.csv -NoTypeInformation
You should use the -Encoding Switch and set the type as UTF8 to get it done.

Well thanks for the input. It doesn't look like it but it got me to what I came up with:
(get-content C:test\test1.csv).replace('£', 'GBP') | set-content C:\test\test1replaced.csv

Parse csv along comparing txt file lined and log lines not found

As a continuation of a script I'm running, working on the following.
I have a CSV file that has formatted information, example as follows:
File named Import.csv:
Name,email,x,y,z
\I\RS\T\Name1\c\x,email#jksjks,d,f
\I\RS\T\Name2\d\f,email#jsshjs,d,f
...
This file is large.
I also have another file called Note.txt.
Name1
Name2
Name3
...
With help from #mathias-r-jessen
$Dir = PathToFile
$import = Import-Csv $Dir\import.csv
$NoteFile = "$Dir\Note.txt"
$Note = GC $NoteFile
$Import |Where-Object {$Note -contains $_.Name.Split('\')[4]} |Export-Csv "$Dir\Result.csv" -NoTypeInformation -Append
This code quickly and effortlessly parses the big csv and extracts every line that contains any of the lines in the $note file.
My next question is how do i log any lines in the $note file that were not found in the csv file.
I tried the following:
$result = $Import |Where-Object {$Note -contains $_.Name.Split('\')[4]} |Export-Csv "$Dir\Result.csv" -NoTypeInformation -Append
$Note | Where-Object {$result.Name.Split('\')[4] -notcontains $Note} | out-file $dir\not-found.log -append
This seems to return every line in $note.
#mathias-r-jessen any help you can provide would be appreciated.

You could use a Switch to do that.
Switch($Import){
{$Note -contains $_.Name.Split('\')[4]} {$_ | Export-Csv "$Dir\Result.csv" -NoTypeInformation -Append; continue}
default {$_ | Export-csv "$Dir\Not-Found.csv" -NoType -Append}
}
The continue in the first option makes it so that if the first case is a match it performs the relevant action, and then continues to the next record. If the first case doesn't match it moves on to the default action, which outputs it to a different file.

I solved it by using the following:
$result = $Import |Where-Object {$Note -contains $_.Name.Split('\')[4]}
$result | Export-Csv "$Dir\Result.csv" -NoTypeInformation -Append
$matches = $note | where-object { $result.Name -match $_}
compare-object $note $matches |where-object {$_.SideIndicator -like "<=" | select -ExpandProperty InputObject | Out-file "$Dir\Not_found.txt" -Append

Using PowerShell to remove lines from a text file if it contains a string

I am trying to remove all the lines from a text file that contains a partial string using the below PowerShell code:
Get-Content C:\new\temp_*.txt | Select-String -pattern "H|159" -notmatch | Out-File C:\new\newfile.txt
The actual string is H|159|28-05-2005|508|xxx, it repeats in the file multiple times, and I am trying to match only the first part as specified above. Is that correct? Currently I am getting empty as output.
Am I missing something?

Suppose you want to write that in the same file, you can do as follows:
Set-Content -Path "C:\temp\Newtext.txt" -Value (get-content -Path "c:\Temp\Newtext.txt" | Select-String -Pattern 'H\|159' -NotMatch)

Escape the | character using a backtick
get-content c:\new\temp_*.txt | select-string -pattern 'H`|159' -notmatch | Out-File c:\new\newfile.txt

Another option for writing to the same file, building on the existing answers. Just add brackets to complete the action before the content is sent to the file.
(get-content c:\new\sameFile.txt | select-string -pattern 'H`|159' -notmatch) | Set-Content c:\new\sameFile.txt

You don't need Select-String in this case, just filter the lines out with Where-Object
Get-Content C:\new\temp_*.txt |
Where-Object { -not $_.Contains('H|159') } |
Set-Content C:\new\newfile.txt
String.Contains does a string comparison instead of a regex so you don't need to escape the pipe character, and it's also faster

The pipe character | has a special meaning in regular expressions. a|b means "match either a or b". If you want to match a literal | character, you need to escape it:
... | Select-String -Pattern 'H\|159' -NotMatch | ...

This is probably a long way around a simple problem, it does allow me to remove lines containing a number of matches. I did not have a partial match that could be used, and needed it to be done on over 1000 files.
This post did help me get to where I needed to, thank you.
$ParentPath = "C:\temp\test"
$Files = Get-ChildItem -Path $ParentPath -Recurse -Include *.txt
$Match2 = "matchtext1"
$Match2 = "matchtext2"
$Match3 = "matchtext3"
$Match4 = "matchtext4"
$Match5 = "matchtext5"
$Match6 = "matchtext6"
$Match7 = "matchtext7"
$Match8 = "matchtext8"
$Match9 = "matchtext9"
$Match10 = "matchtext10"
foreach ($File in $Files) {
$FullPath = $File | % { $_.FullName }
$OldContent = Get-Content $FullPath
$NewContent = $OldContent `
| Where-Object {$_ -notmatch $Match1} `
| Where-Object {$_ -notmatch $Match2} `
| Where-Object {$_ -notmatch $Match3} `
| Where-Object {$_ -notmatch $Match4} `
| Where-Object {$_ -notmatch $Match5} `
| Where-Object {$_ -notmatch $Match6} `
| Where-Object {$_ -notmatch $Match7} `
| Where-Object {$_ -notmatch $Match8} `
| Where-Object {$_ -notmatch $Match9} `
| Where-Object {$_ -notmatch $Match10}
Set-Content -Path $FullPath -Value $NewContent
Write-Output $File
}

If you anyone having this issue while doing what suggested by Robert Brooker-
*These files have different encodings. Left file: Unicode (UTF-8) with signature. Right file: Unicode (UTF-8) without signature. You can resolve the difference by saving the right file with the encoding Unicode (UTF-8) with signature.* with Set-Content
use -Encoding UTF8
so like this
(get-content c:\new\sameFile.txt | select-string -pattern 'H`|159' -notmatch) | Set-Content c:\new\sameFile.txt -Encoding UTF8