将2列文件转换为1列

Question

我有一个包含2列和任意行数（100或更多）的文本文件：

data1 data2  
data3 data4

我想将它转换为1列，如下所示：

data1  
data2  
data3  
data4

在unix中，我可以使用for循环和awk完成它，但是对PowerShell来说是一个非常新的。

Answer 1

# Read lines,  loop each line with the variable name $_
Get-Content c:\wherever\input.txt | ForEach-Object {

    -split $_     # unary split breaks on whitespace
                  # pieces go down the pipeline

} | Set-Content c:\wherever\output.txt -Encoding UTF8   # save them to a file

或在shell中，为简洁起见：

-split(gc 1.txt)|sc 2.txt -En utf8

Answer 2

key

Answer 3

$textfile = "path/sourcefile" #path and name of the source text file
$newfile = 'newfile.txt' #name of the new text file
New-Item -ItemType file -Name $newfile #a new text file will be created from wherever you are running this script from if you have the script saved and named, else it will be created in the c drive.
$textfile = Get-Content $textfile #source text file being red and stored into a variable
foreach ($line in $textfile) {
$datas = $line.split(' ') | where { $_.length -gt 1 } #each line in the text file is being split and spaces being excluded
foreach ($data in $datas)
    { Add-Content $newfile $data } #columns being merged, this will work with multiple columns which are separated by a space