powershell_利用powershell搜索系统中的目录(文件夹)/文件/批量搜索特定文件集中的字符串/打印含有特定字符串的文件

文章目录

• ​​reference​​
• ​​搜索文件(search files)​​
• ​​搜索目录(search Directory/folder)​​

• ​​效果​​

• ​​指定目录并搜索该目录下的所有文件(或具有特征的文件)中是否具有特定字符串​​

• ​​preview​​

• ​​打印含有特定字符串或文件名的文件​​

• ​​辅助函数(optional)​​

• ​​catn​​
• ​​PrintBorder​​

reference

• ​​How to search for a folder with PowerShell - Stack Overflow​​

搜索文件(search files)

function searchFiles
{
    <# 
    .synopsis
    从当前目录开始递归查找具有指定名称的文件
    .Example 
    searchFiles "css" 
    #>
    param(
        $pattern
    )
    # $wildPattern="*$pattern*"
    Get-ChildItem -File $pattern -Recurse | Select-Object FullName
    # ls -file index.html -R|select FullName 
}

搜索目录(search Directory/folder)

function searchDirectories
{
    <#     
    .synopsis
    从当前目录开始递归查找具有指定名称的目录
    .Example 
    searchDirectories 'css' 
    searchDirectories -Dir $env:blogs -pattern css
     #>
    param(
        $pattern,
        $Dir = './'
    )
    # $wildPattern="*$pattern*"
    Write-Output 'searching...'
    Get-ChildItem -Path $Dir -Directory -Recurse $pattern | Select-Object name, FullName 
    # Get-ChildItem $Dir -Directory -Recurse | Where-Object { $_.Name -like $pattern } | Select-Object name, FullName 
    # Get-ChildItem $Dir -R -V | Where-Object { $_.Attributes -eq 'Directory' -and $_.Name -like $pattern } | Select-Object FullName
    # | Where-Object { $_.Name -eq $pattern } 
}

如果想要兼容通配符,可以使用-like 而非-eq

效果

指定目录并搜索该目录下的所有文件(或具有特征的文件)中是否具有特定字符串

function searchContentWithSpecifiedFiles
{
    param(
        $dirFrom = '.',
        $fileNamePattern,
        $content
    )
    Get-ChildItem $dirFrom -File $fileNamePattern -Recurse | Select-String $content
    # borderPrint 
    # 打印本次函数运行的参数
    Write-Output "@content=$content,
    `n@fileNamePattern=$fileNamePattern,
    `n@DirFrom=$dirFrom
    "
}

可选部分
上方被注释的borderPrint函数:

function borderPrint
{
    param (
        $borderUnit = '-~',
        $timesOfRepeat = 30
    )
    $border = ''
    # Write-Output 50*$borderUnit
    for ($i = 0; $i -lt $timesOfRepeat; $i++)
    {
        # $border = $border + $borderUnit
        $border += $borderUnit
    }
    Write-Output $border
}

preview

打印含有特定字符串或文件名的文件

function searchStrWithCat
{
    param (
        $pattern
    )
    # todo
    # Get-ChildItem $env:scripts\ModulesByCxxu\ConstantStrings -r | ForEach-Object { if ($_.ToString() -like "*$pattern*") { Write-Output $_ catn $_ } }
    Get-ChildItem $env:scripts\ModulesByCxxu\ConstantStrings -r | 
    ForEach-Object { 
        if (($_.ToString() -like "*$pattern*") -or ( Select-String -Path $_ -Pattern $pattern ) ) 
        { 
            Write-Output $_; 
            PrintBorder
            # catn 是自定义函数模仿linux cat -n 效果.
            catn $_ ; 
            # 如果使用break,则指打印第一个满足条件的文件
            # break ;
            PrintBorder

        } 
    }
}

辅助函数(optional)

catn

catn 可以用自带的cat 代替

function catn
{
    <# 
    .Synopsis
    来源于stackOverflow!
    Mimic Unic / Linux tool nl number lines
   
    .Description
    Print file content with numbered lines no original nl options supported
   
    .Example
     nl .\food.txt
    #>
    param (
        [parameter(mandatory = $true, Position = 0)]
        [String]$FileName
    )

    process
    {
        If (Test-Path $FileName)
        {
            # core logic for the function
            # 关键在于格式化'{0,5} {1}' -f
            Get-Content $FileName | ForEach-Object { '{0,-5} {1}' -f $_.ReadCount, $_ }
        }
    }
}

PrintBorder

可以主函数中可以注释掉

function PrintBorder
{
    param (
        $borderUnit = '-~',
        $timesOfRepeat = 30
    )
    $border = ''
    # Write-Output 50*$borderUnit
    for ($i = 0; $i -lt $timesOfRepeat; $i++)
    {
        # $border = $border + $borderUnit
        $border += $borderUnit
    }
    Write-Output $border
}