Powershell Cheat Sheet (Page 3 of 3) in pdf

Load a S nap I n

Load a S nap i n f or a dded f unctionality, s upressing e rror i nfo i f t he s nap i n i s a lready l oaded.

Add-‐PSSnapin m icrosoft.sharepoint.powershell -‐ ErrorAction S ilentlyContinue

Working W ith S hortened c ommands ( Aliases)

Use G et-‐Alias t o l ist o ut a ll c ommands w ith s hortened a lternatives

Get-Alias

Find t he l ong f orm o f a c ommand f rom i ts a lias:

Get-Alias –name dir

Find a ll a liases o f a f orm o f a c ommand f rom i ts a lias:

Get-Alias –Definition “Get-ChildItem”

Refining o utput

Where-‐Object ( Where)

Sort-‐Object ( Sort)

Where i s u sed t o l imit t he o utput o f a c ommand

Limit w hich f ields a re r eturned

Command | W here { $_.ParameterName – like “ value”}

Long F orm:

$a = dir |Where {$_.PSIsContainer –eq $true}

Dir | Sort-Object Name

Short F orm:

Dir | Sort Name, Length

Select-‐Object ( Select)

Listing D etails

Limit w hich f ields a re r eturned

Sometimes t here i s m ore t han i s s hown b y d efault

Dir | Select Name, Length

Format-‐List o utputs m ore f ields, i n a l ist f ormat

Limit h ow m any r esults a re r eturned

Dir | Format-list

Dir | Select –First 3

Dir | fl

Chaining M ultiple C ommands

Multiple c ommands a nd r efiners c an b e u sed t o g et j ust t he r ight o utput:

Dir | where {$_.PSIsContainer –eq $true} | Sort name | Select –first 3

Learning a bout a r esult b y u sing w here, t he d ot ( .) a nd t ab

Some c ommands r eturn c omplex r esults t hat c an b e f urther b roken d own.

It i s o ften h elpful t o n arrow d own t he r esults t o j ust o ne i tem, a nd a ssign t hat o ne r esult t o a v ariable s o

that y ou c an i nspect i ts p roperties.

$d = Dir #returns too much

$d = Dir | select –first #better, returns one entry

At t his p oint y ou c an t ype $ d. a nd h it t he t ab k ey r epeatedly t o s ee t he d ifferent p roperties.

$d.(tab) #starts to list the properties such as $d.name, $d.fullname

Another e xample, u sing w here t o p ick t he s pecific r esult t o i nspect

$d = Dir | Where {$_.name –eq “Windows”}

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