I want to rename a some files. It depends on the array of string new name I have. I tried this, but the files is renaming all. My expectation, the file only rename 3 files, because I only has 3 array. Please help anyone can has idea. Thanks a lot.
$Names = #("Student", "Employee", "Married")
$DataFile = Get-ChildItem -Path .\*.txt #There are more than 10 files
foreach ($name in $Names)
{
$DataFile | Rename-Item -NewName {"$name" + $_.Name}
}
For this you will need to created an counter ($i) to index into the other array:
$Names = 'Student', 'Employee', 'Married'
$DataFile = Get-ChildItem -Path .\*.txt
$Names | ForEach-Object { $i = 0 } {
Rename-Item $DataFile[$i] ($_ + $DataFile[$i++].Name)
}
Note that the ForEach-Object supports multiple script blocks:
When you provide multiple script blocks to the Process parameter, the
first script block is always mapped to the begin block. If there are
only two script blocks, the second block is mapped to the process
block. If there are three or more script blocks, first script block is
always mapped to the begin block, the last block is mapped to the end
block, and the blocks in between are all mapped to the process block.
If you only want to rename as many files as there are strings in your $Names array, you can do:
$Names = 'Student', 'Employee', 'Married'
$count = 0
Get-ChildItem -Path .\*.txt | Select-Object -First ($Names.Count) | ForEach-Object {
$_ | Rename-Item -NewName ('{0}-{1}' -f $Names[$count++], $_.Name)
}
Related
I'm trying to populate an array of file paths where ever the script is located in. But I don't want
the array to include the path of the script only the other files in that folder. I have tried removing it after it is populated by using a list array instead but then I get an error that the array is a fixed size.
#To get path in which the script is located
$mypath = $MyInvocation.MyCommand.Path
$myStringPath=$mypath.ToString().Replace("TestingScriptPath.ps1", "")
#Populates files inside the folder
$array = #()
(Get-ChildItem -Path $myStringPath ).FullName |
foreach{
$array += $_
}
#display paths
for($i = 0; $i -lt $array.length; $i++)
{
$array[$i]
}
You're better off not putting it in the array in the first place.
When updating an array the whole array has to be rewritten, so the performance tends to be terrible.
Use a different datatype if you're going to be removing item-by-item.
#To get path in which the script is located
$mypath = $MyInvocation.MyCommand.Path
$myStringPath=$mypath.ToString().Replace("testingscriptpath.ps1", "")
#Populates files inside the folder
$array = Get-ChildItem -Path $myStringPath | Where-Object {$_.fullname -ne $mypath}
$array
if you definitely want to do it the way suggested in the question (slower)
$ArrayWithFile = Get-ChildItem -Path $myStringPath
$ArrayWithoutFile = $ArrayWithFile | Where-Object {$_.fullName -ne $mypath}
I've got a script that searches for a string ("End program" in this case). It then goes through each file within the folder and outputs any files not containing the string.
It works perfectly when the phrase is hard coded, but I want to make it more dynamic by creating a text file to hold the string. In the future, I want to be able to add to the list of string in the text file. I can't find this online anywhere, so any help is appreciated.
Current code:
$Folder = "\\test path"
$Files = Get-ChildItem $Folder -Filter "*.log" |
? {$_.LastWriteTime -gt (Get-Date).AddDays(-31)}
# String to search for within the file
$SearchTerm = "*End program*"
foreach ($File in $Files) {
$Text = Get-Content "$Folder\$File" | select -Last 1
if ($Text | WHERE {$Text -inotlike $SearchTerm}) {
$Arr += $File
}
}
if ($Arr.Count -eq 0) {
break
}
This is a simplified version of the code displaying only the problematic area. I'd like to put "End program" and another string "End" in a text file.
The following is what the contents of the file look like:
*End program*,*Start*
If you want to check whether a file contains (or doesn't contain) a number of given terms you're better off using a regular expression. Read the terms from a file, escape them, and join them to an alternation:
$terms = Get-Content 'C:\path\to\terms.txt' |
ForEach-Object { [regex]::Escape($_) }
$pattern = $terms -join '|'
Each term in the file should be in a separate line with no leading or trailing wildcard characters. Like this:
End program
Start
With that you can check if the files in a folder don't contain any of the terms like this:
Get-ChildItem $folder | Where-Object {
-not $_.PSIsContainer -and
(Get-Content $_.FullName | Select-Object -Last 1) -notmatch $pattern
}
If you want to check the entire files instead of just their last line change
Get-Content $_.FullName | Select-Object -Last 1
to
Get-Content $_.FullName | Out-String
I have a SQL table that contains several hundred rows of data. One of the columns in this table contains text reports that were stored as plain text within the column.
Essentially, I need to iterate through each row of data in SQL and output the contents of each row's report column to its own individual text file with a unique name pulled from another column.
I am trying to accomplish this via PowerShell and I seem to be hung up. Below is what I have thus far.
foreach ($i=0; $i -le $Reports.Count; $i++)
{
$SDIR = "C:\harassmentreports"
$FILENAME = $Reports | Select-Object FILENAME
$FILETEXT = $Reports | Select-Object TEXT
$NAME = "$SDIR\$FILENAME.txt"
if (!([System.IO.File]::Exists($NAME))) {
Out-File $NAME | Set-Content -Path $FULLFILE -Value $FILETEXT
}
}
Assuming that $Reports is a list of the records from your SQL query, you'll want to fix the following issues:
In an indexed loop use indexed access to the elements of your array:
$FILENAME = $Reports[$i] | Select-Object FILENAME
$FILETEXT = $Reports[$i] | Select-Object TEXT
Define variables outside the loop if their value doesn't change inside the loop:
$SDIR = "C:\harassmentreports"
foreach ($i=0; $i -le $Reports.Count; $i++) {
...
}
Expand properties if you want to use their value:
$FILENAME = $Reports[$i] | Select-Object -Expand FILENAME
$FILETEXT = $Reports[$i] | Select-Object -Expand TEXT
Use Join-Path for constructing paths:
$NAME = Join-Path $SDIR "$FILENAME.txt"
Use Test-Path for checking the existence of a file or folder:
if (-not (Test-Path -LiteralPath $NAME)) {
...
}
Use either Out-File
Out-File -FilePath $NAME -InputObject $TEXT
or Set-Content
Out-File -Path $NAME -Value $TEXT
not both of them. The basic difference between the two cmdlets is their default encoding. The former uses Unicode, the latter ASCII encoding. Both allow you to change the encoding via the parameter -Encoding.
You may also want to reconsider using a for loop in the first place. A pipeline with a ForEach-Object loop might be a better approach:
$SDIR = "C:\harassmentreports"
$Reports | ForEach-Object {
$file = Join-Path $SDIR ($_.FILENAME + '.txt')
if (-not (Test-Path $file)) { Set-Content -Path $file -Value $_.TEXT }
}
I need a batch file /script/tool to delete specified files in folder.
I have a folder with a lot of .xml files. It can contain files named difference of only a few characters (indicating the date).
aa_bb_000000001_2015_9_1.xml
aa_bb_000000001_2015_9_15.xml
aa_bb_000000001_2015_10_1.xml
aa_bb_000000002_2015_5_5.xml
aa_bb_000000002_2015_8_14.xml
aa_bb_000000002_2015_10_1.xml
aa_bb_000000005_2015_7_7.xml
.
.
The length of this part is 15 string
aa_bb_000000001
This part represents a date
2015_10_1
I need to delete all the files that part of the name with a date is earliest.
As a result batch should stay only files:
aa_bb_000000001_2015_10_1.xml
aa_bb_000000002_2015_10_1.xml
aa_bb_000000005_2015_7_7.xml
.
.
Here's one solution that's fairly short. To understand how the code works, it would be best to focus on what the Group-Object command does, what regular expressions are, and how they interact with the -match operator:
$Groups = Get-ChildItem "C:\XMLFiles\*.xml" | Group-Object {$_.Name.Substring(0, 15)}
$FilesToKeep = #{}
foreach ($Group in $Groups) {
$MaxDate = "00000000"
foreach ($FileInfo in $Group.Group) {
$FileInfo.name -match "(\d{4})_(\d{1,2})_(\d{1,2}).xml$" | Out-Null
$Date = $Matches[1]+([int]$Matches[2]).ToString("00")+([int]$Matches[3]).ToString("00")
if ($Date -gt $MaxDate) {
$MaxDate = $Date
$FilesToKeep[$Group.Name] = $FileInfo.FullName
}
}
}
Get-ChildItem "C:\XMLFiles\*.xml" | Where-Object {-not $FilesToKeep.ContainsValue($_.FullName)} | Remove-Item
thank you for looking. I want to loop through each item in a folder and add qualifying file names and lengths (sizes) to an array so I can send an email out. For example, if there are files without the .txt extension, I do not want to include them. What happens is the email is sent out, but lists the same files in several tables. I know if the issue is how I'm storing the current file to the array, but not sure how to fix it. I just want the current file in the foreach to be added once.
Here is my stripped out code:
$myFolder = "C:\Users\myName\Documents\Temporary"
$ReceivedCount = 0
$a = "<style>BODY{font-family: Verdana; font-size: 9pt;}"
$a = $a + "BODY{background-color:white;}"
$a = $a + "TABLE{border-width: 1px;border-style: solid;border-color: black;border-collapse: collapse; }"
$a = $a + "TH{border-width: 2px;padding: 7px;border-style: solid;border-color: black;background-color:lightblue;padding-right: 2px;}"
$a = $a + "TD{border-width: 2px;padding: 5px;border-style: solid;border-color: black;background-color:white; padding-right: 2px;}"
$a = $a + "</style>"
foreach ($file in $myFolder)
{
$FileName = $file.name
Echo "Curent file: $FileName"
if($FileName -like "*.txt")
{
$ReceivedCount += 1
# This is the section I'm doing wrong:
$FilesReceived += #(Select-Object name , length | ConvertTo-HTML -head $a)
}
}
Echo "Found $ReceivedCount files."
if ($FilesReceivedCount -gt 0)
{
#send email...
}
Try the following:
#$FilesReceived = #()
$FilesReceived += #($file | Select-Object name , length)
$html = $FilesReceived | Convertto-html -head $a
Btw you can filter the file selection beforehand if you use the -include parameter of gci like this:
Get-Childitem C:\path\*.* -Include *.txt
so you only handle .txt files
If you just want to include the files in the table (and not use them later as in an array) you can just use:
$filenames = Get-ChildItem -Path $myFolder "*.txt" | Select-Object Name | ConvertTo-Html -Fragment
This will create a single table containing just the file names (add parameters to the select-object if you want othets). I use the pipe to select-object rather then -name flag on get-childitem as the flag will include the full path while select-object just includes name.