使用PowerShell 5或>更新zipfile.寻求改进的工作代码 [英] Update zipfiles with PowerShell 5 or >. Working code looking for improvement

问题描述

Windows 10 64位. PowerShell 5.1

Windows 10 64-bit. PowerShell 5.1

使用PowerShell 5或>更新zipfile.正在寻求改进的工作代码.

Update zipfiles with PowerShell 5 or >. Working code looking for improvement.

1.1.txt, 1.1.3.txt and 1.txt go in                   FileGroup0000000001.zip
11.txt and 11.1.txt goes in                          FileGroup0000000011.zip 
2.1.3.6.txt, 2.1.3.6.7.txt, 2.1.txt, and 2.txt go in FileGroup0000000002.zip 

使用PowerShell 5更新zipfile gci, regex, $Matches, foreach { $ _ PadLeft } ，Compress-Archive, and Remove-Item.十次运行平均29毫秒9个文件(48KB)3个档案.

Update zipfiles with PowerShell 5 gci, regex, $Matches, foreach {$_ PadLeft}, Compress-Archive, and Remove-Item. Avg 29ms 9 files (48KB) 3 archives on ten runs.

要进行测试，请清除您的桌面.您的桌面上不应有.txt或.zip文件.有3个Remove-Item，没有-whatif或-confirm.制作9个文本文件和3个zipfile.工作脚本，测试脚本和带日志文件的脚本.

For testing clear your desktop. There should be no .txt or .zip files on your desktop. There are 3 Remove-Item without -whatif or -confirm. Makes 9 text files and three zipfiles. Working script, test script, script w/ logfile.

#credit stackoverflow.com/a/60666329/8826818
pushd %USERPROFILE%\Desktop 
gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
$dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
Compress-Archive $_.Group $dest -ea Stop -update
ri $_.Group} 
popd

制作测试文件并进行测试:

Make test files and test:

pushd %USERPROFILE%\Desktop 
ni @("1.1.txt", "1.txt", "11.txt", "2.1.3.6.txt", "2.1.txt","2.txt") > $null
gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
$dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
Compress-Archive $_.Group $dest -ea Stop -update
ri $_.Group} 
ni @("1.1.3.txt", "11.1.txt", "2.1.3.6.7.txt") > $null
gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
$dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
Compress-Archive $_.Group $dest -ea Stop -update
ri $_.Group}
Read-Host @" 

Delete all FileGroup*.zip is next.
There should be nine files in three archives.
Press enter key to delete all test files
"@
ri FileGroup*.zip
# clear-variable -name ("Matches", "dest")
popd 
#

制作测试文件，使用日志文件运行十次循环:

Make test files, ten run loop with logfile:

If(test-path logfile031822_030657692.txt) {
cls 
Write-Output "`r`nOverwrite logfile031822_030657692.txt?`r`nPress any key to continue ...    "
cmd /c pause> nul} 
$zcommandpath=$MyInvocation.MyCommand.Path
Write-Output "`r`nThis is $zcommandpath`r`nHow long to archive 9 text files.`r`nStarted: "((get-date).ToString('MM/dd/yy hh:mm:ss.ffff tt') -replace " : ", ":") | out-file -nonewline -append logfile031822_030657692.txt
$times=@()
$watch = New-Object System.Diagnostics.Stopwatch
for ($zdoug=0;$zdoug -lt 10; $zdoug++){
$watch.Start() #put this at start of the loop
ni @("1.1.txt", "1.txt", "11.txt", "2.1.3.6.txt", "2.1.txt","2.txt") > $null
gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
$dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
Compress-Archive $_.Group $dest -ea Stop -update
ri $_.Group} 
ni @("1.1.3.txt", "11.1.txt", "2.1.3.6.7.txt") > $null
gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
$dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
Compress-Archive $_.Group $dest -ea Stop -update
ri $_.Group} 
$times += $watch.Elapsed.TotalSeconds #this at the end
$watch.reset() } 
$zLoopFinished=((get-date).ToString('MM/dd/yy hh:mm:ss.ffff tt') -replace " : ", ":") 
# clear-variable -name ("Matches", "dest", "i") 
# BEGIN DEBUG
# Read-Host @" 
# Delete all FileGroup*.zip is next.
# Press enter key to delete all test files
# "@
#END DEBUG 
ri FileGroup*.zip
popd
#
$times | Measure-Object -sum -ave -max -min
$times | Measure-Object -sum -ave -max -min | out-file -append logfile031822_030657692.txt    
Write-Output "Finished:  $zLoopFinished" | out-file -append logfile031822_030657692.txt    
(gc logfile031822_030657692.txt) | Where { $_.Trim(" `t") }  | select-string -pattern "Property :" -notmatch | out-file logfile031822_030657692.txt
#https://devblogs.microsoft.com/scripting/trim-your-strings-with-powershell/
$NewLine = gc logfile031822_030657692.txt | ForEach-Object {
$_ 
if ($_ -match ('^' + [regex]::Escape( 'Finished:' ))){ " " }}
$NewLine | Out-File logfile031822_030657692.txt -Force 
# 

LogFile:

This is 
How long to archive 9 text files.
Started: 03/15/20 02:56:34.4380 PM
Count    : 10
Average  : 0.38522078
Sum      : 3.8522078
Maximum  : 1.6380882
Minimum  : 0.2281335
Finished:  03/15/20 02:56:39.9413 PM    

如何使用powershell解析文件路径，名称，带有多个点的基本名称.

How to parse file path, name, basename with more than one dot with powershell.

如何将基名解析为第一个点.

How to parse basename to first dot.

如何使用PadLeft.

How to use PadLeft.

如何使用PowerShell在字符串中添加前导零和结尾零.

How to add leading and ending zeroes to strings with PowerShell.

使用PowerShell 5或更高版本更新zipfile. gci，get-childitem，regex，正则表达式，正则表达式，$ Matches，foreach，管道中的当前项目，$ _，PadLeft，Compress-Archive和Remove-Item. 10个运行中的3个归档文件中的9个文件(48KB)的平均29毫秒.

Update zipfiles with PowerShell 5 or greater. gci, get-childitem, regex, regular expression, regular expressions, $Matches, foreach, the current item from the pipe, $_, PadLeft, Compress-Archive, and Remove-Item. Average 29 milliseconds on 9 files (48KB) in 3 archives on ten runs.

推荐答案

使用Group-Object压缩每个组的文件会更快一些.

Using Group-Object to compress files for each group is a bit faster.

pushd $env:USERPROFILE\Desktop

ni @(
    "1.1.txt"
    "1.txt"
    "11.txt"
    "2.1.3.6.txt"
    "2.1.txt"
    "2.txt"
) > $null

gci *.txt | where BaseName -match "^(\d+)(\.\d+)*$" | group { $Matches[1] } | foreach {
    $dest = 'FileGroup' +  $_.Name.PadLeft(10, "0") + ".zip"
    Compress-Archive $_.Group $dest -Update -ea Stop
    ri $_.Group
}

Read-Host @" 
Delete all FileGroup*.zip is next.
Press enterkey to delete all test files.
"@

ri FileGroup*.zip
popd

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