Powershell - some tip

1. Let your computer can run powershell script : Set-ExecutionPolicy RemoteSigned
2. 將使用者需要互動輸入的選項，自動帶入指令中 :
   因在build software時，會進入cygwin的環境中，並需輸入選項去build, 為將整個動作自動化
1. 單一次選項時 :  sunny || .\login.bat ==> 執行login.bat時，會等待user輸入其名字再做login, 此時利用pipeline, powershell 會自動將 'sunny' input 
2. 需多次輸入時 :　
   ps >@' [enter]
   >> input1 [enter]
   >> input2 [enter]
   >> '@  | command
3. refer to : http://powershell.com/cs/blogs/tips/archive/2009/07/15/feeding-input-into-native-commands.aspx
3. Execute powershell script (.ps1 file) as a command (可應用於task scheduler中) :
   powershell.exe -command "&{d:\ps\sample.ps1 arg1 arg2}"
4. Print all System variable
   

   Get-ChildItem -Path Variable: `
          | Add-Member `
                 -Name Type `
                 -MemberType ScriptProperty `
                 -Value { $this.GetType().FullName } `
                 -PassThru `
          | Add-Member `
                 -Name DisplayValue `
                 -MemberType ScriptProperty `
                 -Value { (Get-Variable -Name $this.Name -Scope 1 -ValueOnly | Format-List -Property * | Out-String).Trim("`r`n") } `
                 -PassThru `
          | Sort-Object -Property Name `
          | Format-List -Property Name,Type,Description,Value,DisplayValue,Options `
          | Out-Host -Paging

5. 
   

Powershell - 執行外部命令

Summarize form source :

• http://www.eggheadcafe.com/software/aspnet/31259491/obtaining-script-exit-return-codes.aspx
• http://blogs.msdn.com/b/powershell/archive/2006/09/15/errorlevel-equivalent.aspx

1. Use [Diagnostic.Process]::Start a single line
   [Diagnostics.Process]::Start('C:\Vmware\vcbMounter.exe',"-h $host -u $user -p $password -s name:$machine -r $location -t $backuptype")
2. Parameterize
   $application = 'C:\Vmware\vcbMounter.exe'
   
   

   $arguments = "-h {0} -u {1} -p {2} -s name:{3} -r {4} -t {5}" -f ($host, $user, $password, $machine, $location, $backuptype)
   [Diagnostics.Process]::Start('$application','$arguments')

3. Use & replace [Diagnostic.Process]::Start
   $exe = "C:\Vmware\vcbMounter.exe"
   
   

   $host = "server"
   $user = "joe"
   $password = "cleartextpasswordsareanono:-)"
   $machine = "somepc"
   $location = "somelocation"
   $backupType = "incremental"
   & $exe -h $host -u $user -p $password -s "name:$machine" -r $location -t $backupType

4. Get execution result
   $process = [Diagnostics.Process]::Start('$application','$arguments')
   
   

   the process object has a member HasExited that returns $true when the
   process has exited (pretty self explanatory there..)
   
   There is also a ExitCode property that has the exit code of the process.
   
   You could use a do while loop to check for the exit of the process.
   do {...} while (!$process.HasExited)

5. Use $?, $LASTEXITCODE to get execution result
   $?
   
   
          Contains True if last operation succeeded and False otherwise.
   $LASTEXITCODE
          Contains the exit code of the last Win32 executable execution.
   EXAMPLE :
   PS> ping localhost
   Pinging jpsvista1.ntdev.corp.microsoft.com [::1] from ::1 with 32 bytes of data:
   Reply from ::1: time<1ms
   Reply from ::1: time<1ms
   Reply from ::1: time<1ms
   Reply from ::1: time<1ms
   Ping statistics for ::1:
       Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
   Approximate round trip times in milli-seconds:
       Minimum = 0ms, Maximum = 0ms, Average = 0ms
   PS> $lastexitcode
   0
   PS> ping asdfasdf
   Ping request could not find host asdfasdf. Please check the name and try again.
   PS> $lastexitcode
   1

An Example of mine : 1. 可提供將stdout寫到logfile  2.用write-progress 做執行經歷時間的輸出

function startProcess ([string] $processname, [string] $arguments, [string]$logfile)

{

[String]$output=""

$processStartInfo = New-Object System.Diagnostics.ProcessStartInfo;

$processStartInfo.FileName = $processname;

$processStartInfo.WorkingDirectory = (Get-Location).Path;

if($arguments) { $processStartInfo.Arguments = $arguments }

$processStartInfo.UseShellExecute = $false;

if($logfile) {$processStartInfo.RedirectStandardOutput = $true}

$process = New-Object System.Diagnostics.Process;

$process.StartInfo=$processStartInfo

$process.Start() 

#$process = [System.Diagnostics.Process]::Start($processStartInfo);

$startTime=get-Date

$endTime=get-date

do {

Start-Sleep -Seconds 1

$endTime=get-date

$timeSpan=$endTime - $startTime

Write-Progress -Activity "Building ... and timespan:" -Status $timeSpan  

} while (!$process.HasExited)

if($logfile) {$output=$process.StandardOutput.ReadToEnd() }

$process.WaitForExit()

$process.Close()

if($logfile) {

$output | Out-File $logfile ;

"Start  at:$startTime" | Out-File $logfile -Append ;

"End    at:$endTime" | Out-File $logfile -Append ;

"Timespan :$timeSpan" | Out-File $logfile -Append ;

}

else {

Write-Host "Start at:$startTime"

Write-Host "End at:$endTime"

Write-Host "Timespan : $timeSpan"

}

}

PowerShell - 如何執行遠端端機器的命令

1. 在被執行端機器啟動 winrm, 並自動設定 : 執行winrm quickconfig

過程如下:

PS D:\>winrm quickconfig

WinRM 未設定為在此電腦上接收要求。

必須進行下列變更:

設定 WinRM 服務類型為自動啟動。

啟動 WinRM 服務。

進行這些變更 [y/n]? y

WinRM 已經更新以接收要求。

WinRM 服務類型順利變更。

WinRM 服務已啟動。

此電腦上的 WinRM 尚未設定為允許存取以進行遠端管理。

必須進行下列變更:

在 HTTP://* 上建立 WinRM 接聽程式，以接受對於此電腦之任何 IP 的 WS-Man 要求。

啟用 WinRM 防火牆例外。

進行這些變更 [y/n]? y

WinRM 已經更新，可用於遠端管理。

已在 HTTP://* 上建立 WinRM 接聽程式，以接受對於此電腦之任何 IP 的 WS-Man 要求。

WinRM 防火牆例外已啟用。

2. 執行單一遠端指令: Remote-Invoke
1. Invoke-Command -ComputerName server01 -ScriptBlock { get-host }
   在遠端電腦(server01) 執行指令 get-host
2. invoke-command -filepath c:\scripts\test.ps1 -computerName server01在遠端電腦(server01) 執行powershell script file c:\scripts\test.ps1
3. 其它可用 help Invoke-Command -example 得到更多說明
3. 啟一個remote interaction session, 然後在console中可直接革連續執行指令，像linux的ssh
1. 開啟一個在server01的remote session, 命名為 testRemote
   command : New-PSSession -Name remoteTest -ComputerName server01
2. 進入 remoteTest的remote session
   command : Enter-PSSession -Name remoteTest 此時 command prompt會在最前加上遠端電腦的名稱,  [server01] PS D:>
3. 以後此console就是遠端電腦的console
4. 離開
   command : Exit-PSSession
4. Trouble Shooting
1. 一般要能啟動遠端命令必需是administrator或屬於administrator group, 如是一般user則需設定付予權限, 如下 :

   Set-PSSessionConfiguration Microsoft.Powershell -ShowSecurityDescriptorUI

   執行以上命令後, 在command line回答"Y", 隨後會出現一UI供設定權限，此時加入user, 並勾選 [Allow Execute(Invoke)], 最後再回答"Y", 重新啟動 WinRM service
2. reference : http://www.ravichaganti.com/blog/?p=1181

iPhone功能強化 - 加入導航功能 (一)

Install roqyBT (a bluetooth stack)

1. use WinSCP put roqyBT installation file (mine is roqybt_0.9.9-2.deb)  to /private/var/tmp/
2. open putty terminal 
3. change the pwd to /private/var/tmp/ by type command : cd /private/var/tmp/
4. run command  : dpkg -i roqybt_0.9.9-2.deb
5. reboot iPhone

Crack roqyBT 

1. google cr-roqybt.ipa
2. install it by using iTune
3. start roqyBT from iPhone
4. click [Licence Manager] 
5. copy the Serial # : ??? 
6. start cr-roqy
7. Paste the Serial # copied to [Enter serila here ....]
8. Click [General] button, it will show a license number, and already be copied to pasteboard
9. start roqyBT again
10. click [Licence Manager] 
11. Paste license number to text field below Step 3

Done! The Licence Manager is checked.