USERGUIDE.md

BASH Equivalents

BASH	Powershell
cat $file | less	gci $filename | more
CMD | less	CMDLET | more
CMD | grep	CMDLET | findstr CMDLET | out-string -stream | sls Note: *sls* is Select-String

Commands / Aliases

Get-ChildItem	gci ls dir
Remove-Item	ri rm rmdir del erase rd
Get-Command	gcm _(just like *which* in Bash)_
Get-Content	gc cat type
New-Item	ni
Get-Member	gm
echo	echo write-host write-verbose write-debug

Environment Variables

List

• ls env:
• ls env:U*

Echo / Print

• echo $env:userprofile

Create / Modify

• Per Session
  • $env:myvar = "abc123"
• Permanent
  • [Environment]::SetEnvironmentVariable( "Name", "Value", "<OPTION>" )
    • where OPTION is one of:
      • User (per use profile)
      • Machine (anyone logged into the machine)
      • Process (temporary, for this session only, same as $env syntax above)

Delete / Unset

• remove-item Env:$myvariable
• [Environment]::SetEnvironmentVariable( "Name", $null, "<OPTION>" )

Splatting

Break long commands into readable chunks by specifying parameters in a hash.

$params = @{ 'class' = 'Win32_BIOS';
             'computername'='SERVER-R2';
             'filter'='drivetype=3';
             'credential'='Administrator' }

Get-WmiObject @params

Proxy Functions

Create useful aliases (like in Bash) that pass cmdline parameters onto the underlying command

function vbox { vagrant box @Args }

References

• Windows PowerShell: Splatting
• Split command across mulitple lines
• Splatting with Hashtables or Arrays

Custom Profiles

Directory Locations
Per User	$USERPROFLE\Documents\WindowsPowerShell\
All users	$windir\system32\WindowsPowerShell\v1.0\

Special File Names	(must be in one of the directories above)
Global	profile.ps1
Powershell Only	Microsoft.PowerShell_profile.ps1

References

• https://blogs.technet.microsoft.com/heyscriptingguy/2012/05/21/understanding-the-six-powershell-profiles/

Symbolic Links

• New-Item -ItemType SymbolicLink -Name <SRC> -Target <TGT>
• New-Item -itemtype junction -name <SRC> -target <TGT>

References

• https://docs.microsoft.com/en-us/powershell/wmf/5.0/feedback_symbolic

Getting Help

• man <cmdlet>
• <cmdlet> -?
• get-help [-detailed -full -parameter <param-name> -examples]

Get the Type of something

• GetType()
• Example: (get-date).getType()

Get the properties of something

• Get-Member
• Alias: gm
• Example: ( get-date ).DayOfWeek | gm -f

Debugging

Set-PSDebug -Trace 1