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Below is how to sort by date modified and select first 10 and show only name by using Get-ChildItem, Sort, Select-Object in Powershell, Windows. Get-ChildItem | sort LastAccessTime -Descending | Select-Object -First 10 | Select-Object Name

for ($i=1; $i -le 10; $i++){ mkdir $i} : make folders whose name is from 1 to 10 Thanks, JF

Basic commands for operating systems ( Linux/Mac OSX and Windows ) I would like to introduce basic commands and their brief explanations. If you want detail usage, googling them! 1. Linux/Mac OSX pwd:  print working directory hostname:  my computer's network name mkdir :  make directory cd:  change directory ls:  list directory rmdir:  remove directory pushd:  push directory popd:  pop directory cp:  copy a file or directory mv:  move a file or directory less:  page through a file cat:  print the whole file xargs:  execute arguments find:  find files grep:  find things inside files man:  read a manual page apropos:  find what man page is appropriate env:  look at your environment echo:  print some arguments export:  export/set a new environment variable exit:  exit the shell sudo:  become super user root chmod:  change permission modifiers chown:  change ownership 2. Window

This is very useful when you are managing your files in your computer (Windows) 1. Identify files in certain folder >>> Get-ChildItem C:/testfolder/* 2. Identify files in certain folder and remove all of them >>> Get-ChildItem C:/testfolder/* | ForEach ($_) {Remove-Item $_.fullname} 3. Search certain files including '.test' >>> Get-ChildItem C:/* -Include *.test 4. Search certain files including '.test', but excluding the files which begin with 'abc' >>> Get-ChildItem C:/* -Include *.test -Exclude abc*.test 5. Search the files including Sub folders >>> Get-ChildItem C:/* -Include *.test -Recurse 6. Search the files including Sub folders and remove all of them >>> Get-ChildItem C:/* -Include *.test -Recurse | ForEach ($_) {Remove-Item $_.fullname} 7. Search the files, Print them, and then remove all of them >>> Get-ChildItem C:/* -Include *.test -Recurse || ForEach (

When you are using Powershell, you easily run into this: $_ The meaning is the variable for the current values in the pipe line. For example, >>> 1,2,3 | %{ write-host $}% 1 2 3 Additionally, %{ } block means every value in the array. Thanks Have Fun!

ForEach - Loop statement Syntax is as below. ForEach (item In collection) {ScriptBlock} item: A variable to hold the current item collection: A collection of objects e.g. filenames, registry keys, servernames ScriptBlock: A block of script to run against each object. Thanks, Have Fun! The source: http://ss64.com/ps/foreach.html

There are many ways to open folder in Powershell. 1) Invoke-Item cmdlet: ii >>> ii . >>> ii C:\windows 2) start >>> start . >>> start C:\windows 3) explorer.exe >>> explorer.exe . >>> explorer.exe C:\windows 4) explorer >>> explorer . >>> explorer C:\windows 5) hh >>> hh . >>> hh C:\windows >>> hh http://xxx.xxx.xxx/xxx

Fundamental syntax for (initial; condition; repeat)      { command block } Example: >>> for ($i=1, $i -le 10; $i++){      Command block      }