script/Get-LinuxDirectoryExplained.ps1
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class directorys : System.Management.Automation.IValidateSetValuesGenerator { [String[]] GetValidValues() { # Store the data inside the class $directoryNames = @{ "bin" = "essential user binaries" "boot" = "boot loader files" "dev" = "device files" "etc" = "system-global configuration files" "home" = "users home directories" "lib" = "system libraries and kernel modules" "lost+found" = "stores corrupted filesystem files" "media" = "mount point for external / removable devices" "mnt" = "temporary mount points" "opt" = "optional application software packages" "proc" = "procfs - process and kernel information" "root" = "root users home directory" "run" = "stores runtime information" "sbin" = "essential system binaries" "srv" = "services data directories" "sys" = "sysfs - devices and kernel information" "tmp" = "temporary files" "usr" = "user utilities and applications" "var" = "variable files" } # Expose variable for the function $Script:directorysExplained = $directoryNames # return only the names of the hashtable return $directoryNames.Keys } } function Get-LinuxDirectoryExplained { <# .DESCRIPTION Will display helpful information regarding the linux root directorys .EXAMPLE explain bin Uses the alias "explain" and the mandatory parameter "Name" to display information regarding the bin directory .EXAMPLE explain etc -go Uses the alias "explain" and the mandatory parameter "Name" to display information regarding the etc directory, uses switch paramter "go" to set the location to \etc .EXAMPLE explain -all Uses the alias "explain" and the switch paramter "all" to display information regarding all root directorys in the linux filesystem .NOTES #> param( [CmdletBinding(DefaultParameterSetName = 'Name')] [Parameter(Mandatory = $true, ParameterSetName = 'Name', Position = 0)] [ValidateSet([directorys], ErrorMessage = "Incorrect directory name: '{0}'Give this a try: {1}")] $Name, [Parameter(Mandatory = $false, ParameterSetName = 'Name')] [switch]$Go, [Parameter(Mandatory = $false, ParameterSetName = 'All')] [switch]$All ) if ($go) { if ($IsLinux) { Set-Location /$name } else { Write-Warning 'the "Go" parameter is only supported on Linux' } } if (($All) -or ( -not $Name)) { return $Script:directorysExplained } elseif ($Name) { $return = $Script:directorysExplained | Select-Object $name -ErrorAction SilentlyContinue return $return } } # The last line of code initilizes the functions param section and generates the script-scoped variables Get-LinuxDirectoryExplained bin | out-null |