i'm new in powershell
i have a file that contains OU paths separates by "/"
i'd like to only keep the 2 first element of each string
example:
paris/sales/salers/14tharrdt
london/comptability/office1
would give
paris/sales
london/comptability
i googled and found many things, but no way to do this simple thing
thanks for help
You could use -split to split the string on the \ character, select the first two elements and join them together:
$content = Get-Content 'your_file_path'
$content | foreach {
($_ -split '/')[0, 1] -join '/'
}
$content | Set-Content 'your_file_path'
Or, if you prefer using regex here a solution without split (demo here):
$content = Get-Content 'your_file_path'
$content | foreach {
$_ -replace '(.*?\/[^\/]+).*', '$1'
}
$content | Set-Content 'your_file_path'
Like:
$a = "paris/sales/salers/14tharrdt"
$b = $a.Split("/")[0] + "/" + $a.Split("/")[1]
$b
Improvement would be if call Split once and save it to a variable
Related
I have a string wit a following content, delimited by semicolons:
echo $content
BCS3;BCS2;DigitalIO;GAElectricDrive;J1939;SKF15;UBloxGNSS;VIMS
Perhaps my question is noob, but I cannot figure out, how to sort this values alphabetically, e.g. I want to receive following output(first and second elements are not in alphabetical order):
BCS2;BCS3;DigitalIO;GAElectricDrive;J1939;SKF15;UBloxGNSS;VIMS
$Content = "BCS3;BCS2;DigitalIO;GAElectricDrive;J1939;SKF15;UBloxGNSS;VIMS"
$Content = ($Content -split ';'|Sort) -Join ';'
$content
BCS2;BCS3;DigitalIO;GAElectricDrive;J1939;SKF15;UBloxGNSS;VIMS
But the sorting is alphabetical, words containing numbers with differing places are sorted 1,10,100,2,20,200.
To avoid this you can use $ToNatural
$ToNatural = { [regex]::Replace($_, '\d+', { $args[0].Value.PadLeft(20) }) }
$Content = "1;10;100;2;20;200"
$Content = ($Content -split ';'|Sort $ToNatural) -Join ';'
$content
1;2;10;20;100;200
I used the below steps to retrieve a string from file
$variable = 'abc#yahoo.com'
$test = $variable.split('#')[0];
$file = Get-Content C:\Temp\file1.txt | Where-Object { $_.Contains($test) }
$postPipePortion = $file | Foreach-Object {$_.Substring($_.IndexOf("|") + 1)}
This results in all lines that contain $test as a substring. I just want the result to contain only the lines that exactly matches $test.
For example, If a file contains
abc_def|hf#23$
abc|ohgvtre
I just want the text ohgvtre
If I understand the question correctly you probably want to use Import-Csv instead of Get-Content:
Import-Csv 'C:\Temp\file1.txt' -Delimiter '|' -Header 'foo', 'bar' |
Where-Object { $_.foo -eq $test } |
Select-Object -Expand bar
To address the exact matching, you should be testing for equality (-eq) rather than substring (.Contains()). Also, there is no need to parse the data multiple times. Here is your code, rewritten to to operate in one pass over the data using the -split operator.
$variable = 'abc#yahoo.com'
$test = $variable.split('#')[0];
$postPipePortion = (
# Iterate once over the lines in file1.txt
Get-Content C:\Temp\file1.txt | foreach {
# Split the string, keeping both parts in separate variables.
# Note the backslash - the argument to the -split operator is a regex
$first, $second = ($_ -split '\|')
# When the first half matches, output the second half.
if ($first -eq $test) {
$second
}
}
)
I have for input distinguished names like the following:
CN=A00.user,OU=MyOU,OU=A00,OU=MyOU3,DC=my,DC=domain
CN=A01.user1,OU=MyOU1,OU-MyOU2,OU=A00,OU=MyOU3,DC=my,DC=first,DC=domain
I need to print only the DC part, to get an output like:
my.domain
my.first.domain
Looks like split or replace should work, but I'm having trouble figuring out the syntax.
You can use Get-ADPathname.ps1 with the -Split parameter, Select-String with a regular expression, and the -join operator:
(
Get-ADPathname 'CN=A01.user1,OU=MyOU1,OU-MyOU2,OU=A00,OU=MyOU3,DC=my,DC=first,DC=domain' -Split | Select-String '^DC=(.+)' | ForEach-Object {
$_.Matches[0].Groups[1].Value
}
) -join '.'
Output:
my.first.domain
Here's a quick and dirty way to get it done.
("CN=A00.user,OU=MyOU,OU=A00,OU=MyOU3,DC=my,DC=domain " -split "," |
Where-Object { $_.StartsWith("DC=") } |
ForEach-Object { $_.Replace("DC=","")}) -join "."
Produces
my.domain
I would simply remove everything up to and including the first ,DC= and then replace the remaining ,DC= with dots.
$dn = 'CN=A00.user,OU=MyOU,OU=A00,OU=MyOU3,DC=my,DC=domain',
'CN=A01.user1,OU=MyOU1,OU-MyOU2,OU=A00,OU=MyOU3,DC=my,DC=first,DC=domain'
$dn -replace '^.*?,dc=' -replace ',dc=', '.'
So I have a text file that looks something like this:
Members : {USER\member1, USER\member2, US
ER\member3, USER\member4, USER
\member5, USER\member6}
and I would like to remove USER\. The following code removes it but not when it's split by a newline, for example when US on one line and ER\ on another line.
Foreach-Object { %{$_.Replace('USER\', '') }
Putting `n or `r in there doesn't work. Any help is appreciated.
Try this:
PS > ((Get-Content .\t.txt) | % { $_.Trim() }) -join "" -replace "USER\\"
Members : {member1, member2, member3, member4, member5, member6}
If the text is in a string-array, switch out (Get-Content .\t.txt) with your variable. If you have the text in a string(not array) variable, use:
($MYSTRINGVAR.Split("`r`n") | % { $_.Trim() }) -join "" -replace "USER\\"
EDIT Just modify the "Members" part:
$text = (Get-Content .\input.txt) -join "`r`n"
($text | Select-String '(?s)(?<=Members : \{)(.+?)(?=\})' -AllMatches).Matches | % {
$text = $text.Replace($_.Value, ($_.Value -split "`r`n" | % { $_.Trim() }) -join "" -replace "USER\\")
}
$text | Set-Content output.txt
There are probably easier ways to get there, but you can give this one a try:
$Text = #'
Members : {USER\member1, USER\member2, US
ER\member3, USER\member4, USER
\member5, USER\member6}
'#
# First - USER\ with newline inside..
foreach ($index in 1..4) {
$Text = $Text -replace ('USER\\'.Insert($index,'(\r\n\s+)')), '$1'
}
# Than - pure USER\
$Text = $Text -replace 'USER\\'
$Text
As you can see I create few patterns that contain and keep that element in results (, '$1'). For simple ones - I just remove USER\
I've used herestring to create text to work with, it's possible that \r may not be needed for actual file.
This is actually just a comment to Graimer's solution, but it would've been too long and also not readable enough as a comment, so I'm making it a (supplementary) answer instead.
To re-wrap the string after removing USER\ you could do something like this:
$s = "Members : {member1, member2, member3, member4, member5, member6}"
$s -match '^(.*?{)(.*)(})$'
$pad = " " * $matches[1].Length
$matches[1] + ($matches[2] -replace '(.{1,20},) ', "`$1`r`n$pad") + $matches[3]
The first regular expression splits the string into 3 parts that can be accessed via the $matches collection:
Name Value
---- -----
3 }
2 member1, member2, member3, member4, member5, member6
1 Members : {
0 Members : {member1, member2, member3, member4, member5, member6}
$matches[1] is the prologue including the opening curly bracket, $matches[2] is the member list, and $matches[3] is the closing curly bracket. Now you only need to wrap $matches[2] at whatever length you want:
'(.*{1,20},) '
The above means "longest match of at most 20 characters followed by a comma and a space". Replace that with the 1st group ($1) followed by a line-break (```rn``) and a number of spaces that matches the length of the prologue ($pad`) and glue it back together with prologue and trailing curly bracket.
I have to extract columns from a text file explained in this post:
Extracting columns from text file using Perl one-liner: similar to Unix cut
but I have to do this also in a Windows Server 2008 which does not have Perl installed. How could I do this using PowerShell? Any ideas or resources? I'm PowerShell noob...
Try this:
Get-Content test.txt | Foreach {($_ -split '\s+',4)[0..2]}
And if you want the data in those columns printed on the same line:
Get-Content test.txt | Foreach {"$(($_ -split '\s+',4)[0..2])"}
Note that this requires PowerShell 2.0 for the -split operator. Also, the ,4 tells the the split operator the maximum number of split strings you want but keep in mind the last string will always contain all extras concat'd.
For fixed width columns, here's one approach for column width equal to 7 ($w=7):
$res = Get-Content test.txt | Foreach {
$i=0;$w=7;$c=0; `
while($i+$w -lt $_.length -and $c++ -lt 2) {
$_.Substring($i,$w);$i=$i+$w-1}}
$res will contain each column for all rows. To set the max columns change $c++ -lt 2 from 2 to something else. There is probably a more elegant solution but don't have time right now to ponder it. :-)
Assuming it's white space delimited this code should do.
$fileName = "someFilePath.txt"
$columnToGet = 2
$columns = gc $fileName |
%{ $_.Split(" ",[StringSplitOptions]"RemoveEmptyEntries")[$columnToGet] }
To ordinaryć
type foo.bar | % { $_.Split(" ") | select -first 3 }
Try this. This will help to skip initial rows if you want, extract/iterate through columns, edit the column data and rebuild the record:
$header3 = #("Field_1","Field_2","Field_3","Field_4","Field_5")
Import-Csv $fileName -Header $header3 -Delimiter "`t" | select -skip 3 | Foreach-Object {
$record = $indexName
foreach ($property in $_.PSObject.Properties){
#doSomething $property.Name, $property.Value
if($property.Name -like '*CUSIP*'){
$record = $record + "," + '"' + $property.Value + '"'
}
else{
$record = $record + "," + $property.Value
}
}
$array.add($record) | out-null
#write-host $record
}