PowerShell: Pipeline Commands

These commands are almost always used by piping some command's output to them.

Foreach-Object (alias %, foreach)

Do something for each object.

dir | ForEach-Object { $_.fullname}

Select-Object (alias select)

filter by object properties, or first few, or last few.

dir | select -first 5

Where-Object (alias ?, where)

filter by boolean test.

dir -recurse | where { $_.name.length -gt 40}

# list jpg files
dir -recurse -file | where { $_.name -iMatch "\.jpg|\.jpeg|\.jfif"}

Select-String (alias sls)

Filter string objects by string pattern. [see Search String in Files]

Sort-Object (alias sort)

Sort

Format-List (alias fl)

Format object as list. Useful when PowerShell truncates file path.

dir -recurse | fl

Format-Table (alias ft)

Format object as table.