It certainly seemed like a simple enough task but for whatever reason this doesn't work:
#Verifies that the firefox proxy setting have been applied
#locate Prefsjs file
$PrefsFiles = Get-Item -Path ($env:SystemDrive+"\Users\*\AppData\Roaming\Mozilla\Firefox\Profiles\*\prefs.js")
#read in Prefsjs
$Prefsjs = (Get-Content $PrefsFiles)
#Block to compare
$Update= #"
user_pref("network.proxy.http", "0.0.0.0");
user_pref("network.proxy.http_port", 80);
"#
($Prefsjs -contains $Update)
The last line should return a true because the text actually does exist in $Prefsjs... Any ideas?
It's not going to match because you're comparing a multi-line string to an array of single line strings.
You need to compare like objects, which means $Prefsjs also needs to be a single, multi-line string. The easiest way to do that is to add the -Raw switch to your Get-Content:
#read in Prefsjs
$Prefsjs = (Get-Content $PrefsFiles -Raw)
But now $Prefsjs is not an array any more, so you can't use -Contains. It's now just a single string, so you can use the string contains() method to accomplish the same thing:
$Prefsjs.contains($Update)
Related
Just beginning with Powershell. I have a text file that contains the string "CloseYear/2019" and looking for a way to increment the "2019" to "2020". Any advice would be appreciated. Thank you.
If the question is how to update text within a file, you can do the following, which will replace specified text with more specified text. The file (t.txt) is read with Get-Content, the targeted text is updated with the String class Replace method, and the file is rewritten using Set-Content.
(Get-Content t.txt).Replace('CloseYear/2019','CloseYear/2020') | Set-Content t.txt
Additional Considerations:
General incrementing would require a object type that supports incrementing. You can isolate the numeric data using -split, increment it, and create a new, joined string. This solution assumes working with 32-bit integers but can be updated to other numeric types.
$str = 'CloseYear/2019'
-join ($str -split "(\d+)" | Foreach-Object {
if ($_ -as [int]) {
[int]$_ + 1
}
else {
$_
}
})
Putting it all together, the following would result in incrementing all complete numbers (123 as opposed to 1 and 2 and 3 individually) in a text file. Again, this can be tailored to target more specific numbers.
$contents = Get-Content t.txt -Raw # Raw to prevent an array output
-join ($contents -split "(\d+)" | Foreach-Object {
if ($_ -as [int]) {
[int]$_ + 1
}
else {
$_
}
}) | Set-Content t.txt
Explanation:
-split uses regex matching to split on the matched result resulting in an array. By default, -split removes the matched text. Creating a capture group using (), ensures the matched text displays as is and is not removed. \d+ is a regex mechanism matching a digit (\d) one or more (+) successive times.
Using the -as operator, we can test that each item in the split array can be cast to [int]. If successful, the if statement will evaluate to true, the text will be cast to [int], and the integer will be incremented by 1. If the -as operator is not successful, the pipeline object will remain as a string and just be output.
The -join operator just joins the resulting array (from the Foreach-Object) into a single string.
AdminOfThings' answer is very detailed and the correct answer.
I wanted to provide another answer for options.
Depending on what your end goal is, you might need to convert the date to a datetime object for future use.
Example:
$yearString = 'CloseYear/2019'
#convert to datetime
[datetime]$dateConvert = [datetime]::new((($yearString -split "/")[-1]),1,1)
#add year
$yearAdded = $dateConvert.AddYears(1)
#if you want to display "CloseYear" with the new date and write-host
$out = "CloseYear/{0}" -f $yearAdded.Year
Write-Host $out
This approach would allow you to use $dateConvert and $yearAdded as a datetime allowing you to accurately manipulate dates and cultures, for example.
Below is the code where I am taking server names from a text file and concatenating with comma.
But when I am printing the value, it is coming with an extra new line after the values.
I tried doing $erversToReboot.Trim(), but didn't helped.
$ServerList = Get-Content "D:\ServerName.txt"
$Servers=""
foreach($Server in $ServerList)
{
$Servers += $Server + ","
}
[string]$ServersToReboot= $Servers.TrimEnd(",")
The output coming as
server1,server2
---one extra line here---
Please let me know what is going wrong here.
Best as I can tell, you're attempting to comma separate your servers. I'd skip the Foreach construct myself and simply use the join operator.
$ServerList = Get-Content -Path 'D:\ServerName.txt'
$ServerList -join ','
This can be done in a single statement, as well.
$ServerList = (Get-Content -Path 'D:\ServerName.txt') -join ','
Tommy
As others have noted, it's in general much simpler to use the -join operator to join the input lines with a specifiable separator.
As for the problem of an extra empty line: Gert Jan Kraaijeveld plausibly suggests that your input file has an extra empty line at the end, while noting that it is actually not what would happen with the code you've posted, which should work fine (despite its inefficiency).
Perhaps the extra line is an artifact of how you're printing the resulting value.
To answer the related question of how to ignore empty lines in the input file:
Assuming that it is OK to simply remove all empty lines from the input, the simplest PowerShell-idiomatic solution is:
#(Get-Content D:\ServerName.txt) -ne '' -join ','
#(Get-Content D:\ServerName.txt) returns the input lines as an array[1] of strings, from which -ne '' then removes empty lines, and the result of which -join joins with separator ,
[1] Get-Content D:\ServerName.txt would return a scalar (single string), if the input file happened to contain only 1 line, because PowerShell generally reports a single output object as itself rather than as a single-element array when pipeline output is collected.
Because of that, #(...), the array-subexpression operator - instead of just (...) - is needed in the above command: it ensures that the output from Get-Command is treated as an array, because the -ne operator acts differently with a scalar LHS and returns a Boolean rather than filtering the LHS's elements: compare 'foo' -ne '' to #('foo') -ne ''.
By contrast, the #(...) is not necessary if you pass the result (directly) to -join (which simply is a no-op with a scalar LHS):
(Get-Content D:\ServerName.txt) -join ','
I need to replace everything between two points.
$import = Get-Content C:\bookmarks.html
$newbody = Get-Content C:\newbookmarks.html
$remove = '(?<=<DT><H3 ADD_DATE=""1544626193"" LAST_MODIFIED=""154649885"">Import-IE</H3>).*?(?=</DL>)'
$import | %{$_.replace($remove,"$newbody")}
My problem is to get all content between start:
<DT><H3 ADD_DATE=""1544626193"" LAST_MODIFIED=""154649885"">Import-IE</H3>
and the end:
</DL>
incl multiple lines
Example html:
<DT><H3 ADD_DATE="1544626193" LAST_MODIFIED="1546498855">Import-IE</H3>
<DL><p>
<DT>golem.de
<DT>heise online
</DL>
Regards
A couple of changes needed to make this work:
One big multiline string
Since you want to do a replace over multiple lines, we need to makes sure all the lines are contained in the same string, so let's start with that - we can use the -Raw parameter switch with Get-Content:
$import = Get-Content C:\bookmarks.html -Raw
Exact pattern matching in regex
Next up we have the regex pattern itself - there's a few discrepancies between that and the sample content you've shown:
LAST_MODIFIED=""154649885"" # pattern has nested double-quotes and only one 5 at the end
LAST_MODIFIED="1546498855" # input uses just one pair of double-quotes and value has two 5's at the end
So let's fix that, and make sure the input string we're looking for is properly escaped while we're at it:
$remove = "(?<=$([regex]::Escape('<DT><H3 ADD_DATE="1544626193" LAST_MODIFIED="1546498855">Import-IE</H3>'))).*?(?=</DL>)"
String.Replace doesn't support regex
Then, we'll have to abandon the String.Replace() method that you're currently using - because it doesn't actually support regex - so we'll use the -replace operator instead:
$import -replace $remove,"$newbody"
Use -replace in SingleLine mode
The only thing we need now, is to instruct the regex parser to treat the input in SingleLine mode - so that .*? will capture newlines as well. This is super easy though, we just add an options flag s at the start of the regex pattern:
$import -replace "(?s)$remove","$newbody"
And that's it :)
$import = Get-Content C:\bookmarks.html -Raw
$newbody = Get-Content C:\newbookmarks.html
$remove = "(?<=$([regex]::Escape('<DT><H3 ADD_DATE="1544626193" LAST_MODIFIED="1546498855">Import-IE</H3>'))).*?(?=</DL>)"
$import -replace "(?s)$remove","$newbody"
I have a requirement like:
Have a text file containing the following in the following pattern
172.26.xxy.zxy:Administrator:Password
172.26.xxy.yyx:Administrator:Password
172.26.xxy.yyy:Administrator:Password
172.26.xxy.yxy:Administrator:Password
I need my powershell script to read each word and use that word whereever required. For example,
foreach(something)
{
I want the IP's(172.26.---.---) to read and store the value as a variable.
I want to store the two words after **:** in seperate variables.
}
How can this be done? I know to read an entire file or get some specific string. But I need the same to be done on each line.Any help would be really appreciated.
Something like this? You can just split on the : and then store your variables based on the index
$contents = Get-Content C:\your\file.txt
foreach($line in $contents) {
$s = $line -split ':'
$ip = $s[0]
$user = $s[1]
$pass = $s[2]
write-host $ip $user $pass
}
minor edit: "t" missing in content.
You can write a regular expression to replace to remove the parts you do not need
$ip_address= '172.26.xxy.zxy:Administrator:Password' -replace '^(.+):(.+):(.+)$','$1'
$user= '172.26.xxy.zxy:Administrator:Password' -replace '^(.+):(.+):(.+)$','$2'
$pwd= '172.26.xxy.zxy:Administrator:Password' -replace '^(.+):(.+):(.+)$','$3'
I think the more generic and pure Powershell way would be something like this:
Select-String "(.*):(.*):(.*)" c:\file.txt |
Select #{Name="IP"; Expression = {$_.Matches.Groups[1]}},
#{Name="User"; Expression = {$_.Matches.Groups[2]}},
#{Name="Password"; Expression = {$_.Matches.Groups[3]}}
The Output would be then an array of objects each having three properties IP, User and Password. So you can now use them for your purposes, or just add more commands at the end of the pipe.
I've got a .txt-File with some text in it:
Property;Value
PKG_GUID;"939de9ec-c9ac-4e03-8bef-7b7ab99bff74"
PKG_NAME;"WinBasics"
PKG_RELATED_TICKET;""
PKG_CUSTOMER_DNS_SERVERS;"12314.1231
PKG_CUSTOMER_SEARCH_DOMAINS;"ms.com"
PKG_JOIN_EXISTING_DOMAIN;"True"
PKG_DOMAINJOIN_DOMAIN;"ms.com"
PKG_DOMAINJOIN_USER;"mdoe"
PKG_DOMAINJOIN_PASSWD;"*******"
So now, is there a way to replace those *'s with e.g. numbers or sth. ?
If so, may you tell me how to do it?
Much like Rahul I would use RegEx as well. Considering the application I'd run Get-Content through a ForEach loop, and replace text as needed on a line-by-line basis.
Get-Content C:\Path\To\File.txt | ForEach{$_ -replace "(PKG_DOMAINJOIN_PASSWD;`")([^`"]+?)(`")", "`${1}12345678`$3"}
That would output:
Property;Value
PKG_GUID;"939de9ec-c9ac-4e03-8bef-7b7ab99bff74"
PKG_NAME;"WinBasics"
PKG_RELATED_TICKET;""
PKG_CUSTOMER_DNS_SERVERS;"12314.1231
PKG_CUSTOMER_SEARCH_DOMAINS;"ms.com"
PKG_JOIN_EXISTING_DOMAIN;"True"
PKG_DOMAINJOIN_DOMAIN;"ms.com"
PKG_DOMAINJOIN_USER;"mdoe"
PKG_DOMAINJOIN_PASSWD;"12345678"
On second thought, I don't know if I'd do that. I might import it as a CSV, update the property, and export the CSV again.
Import-CSV C:\Path\To\File.txt -Delimiter ";" |%{if($_.Property -eq "PKG_DOMAINJOIN_PASSWD"){$_.value = "12345678";$_}else{$_}|export-csv c:\path\to\newfile.txt -delimiter ";" -notype
If You are using Powershell V2.0 (Hopefully) you can try something like below. gc is short hand for get-content commandlet.
(gc D:\SO_Test\test.txt) -replace '\*+','12345678'
With this the resultant data would be as below (notice the last line)
Property;Value
PKG_GUID;"939de9ec-c9ac-4e03-8bef-7b7ab99bff74"
<Rest of the lines here>
PKG_DOMAINJOIN_USER;"mdoe"
PKG_DOMAINJOIN_PASSWD;"12345678" <-- Notice here; *'s changed to numbers
Rahul's answer was good, I just wanted to mention that *+ will replace all instances of a single * character or more, so it would match any other place there is at least one star. If what you posted is all you would ever expect for you sample data though this would be fine.
You could alter the regex match to make it more specific if it was needed by changing it to something like
\*{3,0}
which would match 3 or more stars, or very specific would be
(?<=")\*{3,}(?=")
which would replace 3 or more stars which are surrounded by double quotes.
Here's a function that uses regex lookahead and lookbehind zero-length assertions to replace named parameters in a string similar to your example:
function replace-x( $string, $name, $value ) {
$regex = "(?<=$([regex]::Escape($name));`").*(?=`")"
$string -replace $regex, $value
}
Its reusable for different settings in your file, e.g:
$settings = get-content $filename
$settings = replace-x $settings PKG_DOMAINJOIN_USER foo
$settings = replace-x $settings PKG_DOMAINJOIN_PASSWD bar