用于识别特定文本并替换为另一列中的文本而不影响列位置的脚本 [英] Script to identify specific text and replace with text from another column without effecting column position
问题描述
我有一个 .txt 文件，其中包含从特定列号开始的文本组织的各种数据行 - 基本上是一个数据表.
以下示例显示了每列的开始位置:
我希望脚本在第 555 列中查找包含-"的所有行，并将其替换为第 450 列中的前 19 个字符，而不影响任何行间距.
此示例所需的输出:
如您所见，Brooklyn"已从第 450 列复制并替换了第 555 列中的-".
<块引用>请注意:
- 脚本将需要运行位于同一文件夹中的多个 .txt 文件
- .txt 文件包含不同数量的行，例如某些文件可能有 20 行，而其他文件可能有 100 行
此外，关于检查给定文件夹中的每个 .txt - 我将使用以下内容.如果可能的话，请告诉我.
Get-ChildItem C:\Users\Desktop -Filter *.txt |ForEach-Object {设置内容 $_.FullName) }有人可以帮忙在 PowerShell 中编写脚本吗.
先谢谢你！
这确实相当丑陋，但似乎可以解决问题.[咧嘴笑]
<预><代码><#_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789#>$InStuff = @'阿尔法布拉沃 - Delta Echo - - Foxtrot GolfHotel Inkblot Joker - Kilo - Lima Mike Nova'@ -split [环境]::NewLine$ColSize = 10$ColToCheck = 30$TriggerText = '-'$SourceCol = 10$DestCol = 60$SourceStopIndex = $SourceCol + $ColSize - 1foreach($InStuff 中的 $IS_Item){if ($IS_Item[$ColToCheck] -eq $TriggerText){$SourceText = -join $IS_Item[$SourceCol..$SourceStopIndex]$IS_Item$IS_Item.Remove($DestCol, $ColSize).Insert($DestCol, $SourceText)}}输出...
Hotel Inkblot Joker - Kilo - Lima Mike NovaHotel Inkblot Joker - Kilo - Inkblot Mike Nova它的作用...
- 找到触发文本
- 复制源文本
- 删除当前目标文本
- 插入替换上述内容
根据要求，这里有一个完整的脚本来处理读取文件 &写出更改.它不会覆盖源文件，但注释会告诉人们如何进行更改.
# 创建一些测试文件$FileOneText = @'阿尔法布拉沃 - Delta Echo - - Foxtrot GolfHotel Inkblot Joker - Kilo - Lima Mike Nova'@ |设置内容$env:TEMP\Jasdeep_01.txt"$FileTwoText = @'Alfa Bravo - - Delta - Echo Foxtrot GolfHotel Inkblot Joker - Kilo - Lima Mike Nova'@ |设置内容$env:TEMP\Jasdeep_02.txt"$FileThreeText = @'阿尔法布拉沃 - Delta Echo Foxtrot Golf Hotel InkblotJoker Kilo Lima - Mike Nova Oscar Papa Quebec'@ |设置内容$env:TEMP\Jasdeep_03.txt"$ColSize = 10$ColToCheck = 30$TriggerText = '-'$SourceCol = 10$DestCol = 60$SourceDir = $env:TEMP$Filter = 'Jasdeep*.txt'$FileList = Get-ChildItem -LiteralPath $SourceDir -Filter $Filter -Fileforeach ($FileList 中的 $FL_Item){$ChangedContent = foreach ($Line in (Get-Content -LiteralPath $FL_Item.FullName)){if ($Line[$ColToCheck] -eq $TriggerText){$SourceText = $Line.Substring($SourceCol, $ColSize)$Line.Remove($DestCol, $ColSize).Insert($DestCol, $SourceText)}别的{$行}}# 为了测试，我使用了新文件来保存更改$NewFileName = $FL_Item.FullName -replace $FL_Item.BaseName, ('{0}_{1}' -f $FL_Item.BaseName, 'Changed')# 注释掉上面的行 &# 如果要替换原件，请取消注释下一行#$NewFileName = $FL_Item.FullName$ChangedContent |设置内容 -LiteralPath $NewFileName}I have a .txt file that contains various lines of data which is organised by text starting at specific column numbers - basically a table of data.
The below example shows where each column starts:
I would like the script to find all lines which contain "-" in column 555 and replace this with the first 19 characters found in column 450 without effecting any line spacing.
Desired output for this example:
As you can see "Brooklyn" has been copied from column 450 and replaced the "-" in column 555.
Please note:
- The script will need to run through multiple .txt files located in the same folder
- The .txt files contain various number of lines e.g some files might have 20 lines whereas others may have 100
Also, In regards to checking each .txt in a given folder - I will be using the below. Please let me know if it possible with this.
Get-ChildItem C:\Users\Desktop -Filter *.txt |
ForEach-Object {
Set-Content $_.FullName) }
Could someone please help with scripting this in PowerShell.
Thank you in advance!
this is really rather ugly, but it seems to do the job. [grin]
<#
_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
#>
$InStuff = @'
Alfa Bravo - Delta Echo - - Foxtrot Golf
Hotel Inkblot Joker - Kilo - Lima Mike Nova
'@ -split [environment]::NewLine
$ColSize = 10
$ColToCheck = 30
$TriggerText = '-'
$SourceCol = 10
$DestCol = 60
$SourceStopIndex = $SourceCol + $ColSize - 1
foreach ($IS_Item in $InStuff)
{
if ($IS_Item[$ColToCheck] -eq $TriggerText)
{
$SourceText = -join $IS_Item[$SourceCol..$SourceStopIndex]
$IS_Item
$IS_Item.Remove($DestCol, $ColSize).Insert($DestCol, $SourceText)
}
}
output ...
Hotel Inkblot Joker - Kilo - Lima Mike Nova
Hotel Inkblot Joker - Kilo - Inkblot Mike Nova
what it does ...
- finds the trigger text
- copies the source text
- removes the current destination text
- inserts the replacement for the above
as requested, here's a full script that handles reading the files & writing out the changes. it does NOT overwrite the source files, but the comments tell one how to make that change.
# create some testing files
$FileOneText = @'
Alfa Bravo - Delta Echo - - Foxtrot Golf
Hotel Inkblot Joker - Kilo - Lima Mike Nova
'@ | Set-Content "$env:TEMP\Jasdeep_01.txt"
$FileTwoText = @'
Alfa Bravo - - Delta - Echo Foxtrot Golf
Hotel Inkblot Joker - Kilo - Lima Mike Nova
'@ | Set-Content "$env:TEMP\Jasdeep_02.txt"
$FileThreeText = @'
Alfa Bravo - Delta Echo Foxtrot Golf Hotel Inkblot
Joker Kilo Lima - Mike Nova Oscar Papa Quebec
'@ | Set-Content "$env:TEMP\Jasdeep_03.txt"
$ColSize = 10
$ColToCheck = 30
$TriggerText = '-'
$SourceCol = 10
$DestCol = 60
$SourceDir = $env:TEMP
$Filter = 'Jasdeep*.txt'
$FileList = Get-ChildItem -LiteralPath $SourceDir -Filter $Filter -File
foreach ($FL_Item in $FileList)
{
$ChangedContent = foreach ($Line in (Get-Content -LiteralPath $FL_Item.FullName))
{
if ($Line[$ColToCheck] -eq $TriggerText)
{
$SourceText = $Line.Substring($SourceCol, $ColSize)
$Line.Remove($DestCol, $ColSize).Insert($DestCol, $SourceText)
}
else
{
$Line
}
}
# for testing, i used new files for saving the changes
$NewFileName = $FL_Item.FullName -replace $FL_Item.BaseName, ('{0}_{1}' -f $FL_Item.BaseName, 'Changed')
# comment out the line above &
# UN-comment the next line if you want to replace the originals
#$NewFileName = $FL_Item.FullName
$ChangedContent |
Set-Content -LiteralPath $NewFileName
}
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