Invalid handling of the PAGER environment variable #6142
Description
Hi there,
I'm new to PowerShell and wanted to try it out but it quickly failed when I tried to use Get-Help.
I think this is related to #798 but I actually don't have any clue on how to fix so please bear with me (well, it looks like | pwsh -c "$env:PAGER" could work but that seems too awful to be the proper solution) :)
Steps to reproduce
> $env:PAGER
less -rExpected behavior
I would have expected the behavior could conform to http://pubs.opengroup.org/onlinepubs/9699919799/utilities/man.html:
ENVIRONMENT VARIABLES
PAGER
Determine an output filtering command for writing the output to a terminal.
Any string acceptable as a command_string operand to the sh -c command shall be valid.
When standard output is a terminal device, the reference page output shall be piped through the command.
If the PAGER variable is null or not set, the command shall be either more or another paginator utility documented in the system documentation.
Actual behavior
> help help
Get-Command : The term 'less -r' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:12 char:21
+ ... oreCommand = (Get-Command -CommandType Application $env:PAGER | Selec ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (less -r:String) [Get-Command], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Commands.GetCommandCommand
The expression after '&' in a pipeline element produced an object that was not valid. It must result in a command name, a script block, or a CommandInfo object.
At line:23 char:21
+ } else { $input | & $moreCommand }
+ ~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : BadExpressionEnvironment data
> $PSVersionTable
Name Value
---- -----
PSVersion 6.0.1
PSEdition Core
GitCommitId v6.0.1
OS Linux 4.14.0-3-amd64 #1 SMP Debian 4.14.12-2 (2018-01-06)
Platform Unix
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0Regards.