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Escape character garbage on command line (Win81)

See original GitHub issue

I’ve been using PWSH 6.1.1 since introduced and that shell has been working great, mostly. Decided to give the 7.0.0-rc.2 a run…

Good News: start up is 25% faster
Bad news: Lots of escape character garbage on command line, appearing as soon as you type anything. (In particular the [104m.)

Steps to reproduce

# type a "$" (the first one is part of the prompt)
$ $⬜[104m

(I had to manually paste a box character above, since it didn’t show in the github markup.)

----------------------------------------------------------
  PowerShell Version    : 7.0.0-rc.2
  OS Name               : Microsoft Windows 8.1 (64-bit)
  OS Version            : 6.3.9600  [2014-08-16 00:50:01]
  OS BuildLabEx         : 9600.19538
  OS HAL                : 6.3.9600.18969
  OS Kernel             : 6.3.9600.18217
  OS UBR                : 19599
  -------------------------------------------------------
  on Host               : xxxx
  as User               : xxxx
  with Privilege        : Administrator
  -------------------------------------------------------
  ExecutionPolicy :
        MachinePolicy   : Undefined
        UserPolicy      : Undefined
        Process         : Undefined
        CurrentUser     : Bypass
        LocalMachine    : RemoteSigned

  Console Settings:
      Type              : ConsoleHost
      OutputEncoding    : Unicode (UTF-8)
      Color Capability  : 151
      Registry VT Level : 1
      CodePage (input)  : 437
      CodePage (output) : 437
      Mode (input)      : 0x1f7
      Mode (output)     :

Name                           Value
----                           -----
PSVersion                      7.0.0-rc.2
PSEdition                      Core
GitCommitId                    7.0.0-rc.2
OS                             Microsoft Windows 6.3.9600
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Related issue with further descriptions:

https://github.com/PowerShell/PowerShell/issues/11685

Issue Analytics

State:
Created 3 years ago
Comments:17 (5 by maintainers)

Top GitHub Comments

1reaction

daxian-dbwcommented, May 18, 2020

I think you should be able to remove it by:

Close all pwsh instances
pwsh -nonprofile -noninteractive from CMD.exe
Remove-Module -FullyQualifiedName @{ ModuleName = "PSReadLine"; ModuleVersion = "2.1" }

PSReadLine is loaded at powershell startup. Once the assembly is loaded, the assembly file on disk cannot be removed. Maybe that’s why you couldn’t uninstall it. -noprofile -noninteractive basically tells powershell to start without loading PSReadLine.

1reaction

daxian-dbwcommented, May 15, 2020

Can you tell me how to install and run a later PSReadLine ?

Sure, you will find the “Upgrading” section helpful: https://github.com/PowerShell/PSReadLine#upgrading You probably should avoid the 2.1.0-beta1 version of it, because it contains an experimental feature “Predictive Suggestion” that doesn’t work well on downlevel Windows like Win 8.1. But knowing the upgrading instructions will help you get to latest PSReadLine in future.