linux 按行分割,PowerShell分割按行数分割文本文件

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#############################################

# Split a log/text file into smaller chunks #

#############################################

#

# WARNING: This will take a long while with extremely large files and uses lots of memory to stage the file

#

# Set the baseline counters

#

# Set the line counter to 0

$linecount = 0

# Set the file counter to 1. This is used for the naming of the log files

$filenumber = 1

# Prompt user for the path

$sourcefilename = Read-Host "What is the full path and name of the log file to split? (e.g. D:\mylogfiles\mylog.txt)"

# Prompt user for the destination folder to create the chunk files

$destinationfolderpath = Read-Host "What is the path where you want to extract the content? (e.g. d:\yourpath\)"

Write-Host "Please wait while the line count is calculated. This may take a while. No really,it could take a long time."

# Find the current line count to present to the user before asking the new line count for chunk files

Get-Content $sourcefilename | Measure-Object | ForEach-Object { $sourcelinecount = $_.Count }

#Tell the user how large the current file is

Write-Host "Your current file size is $sourcelinecount lines long"

# Prompt user for the size of the new chunk files

$destinationfilesize = Read-Host "How many lines will be in each new split file?"

# the new size is a string,so we convert to integer and up

# Set the upper boundary (maximum line count to write to each file)

$maxsize = [int]$destinationfilesize

Write-Host File is $sourcefilename - destination is $destinationfolderpath - new file line count will be $destinationfilesize

# The process reads each line of the source file,writes it to the target log file and increments the line counter. When it reaches 100000 (approximately 50 MB of text data)

$content = get-content $sourcefilename | % {

Add-Content $destinationfolderpath\splitlog$filenumber.txt "$_"

$linecount ++

If ($linecount -eq $maxsize) {

$filenumber++

$linecount = 0

}

}

# Clean up after your pet

[gc]::collect()

[gc]::WaitForPendingFinalizers()

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