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Direct redirection of a custom object ([pscustomobject] instance) to a file with ">" produces no output. #4812
Description
Even though > is not an actual alias of Out-File, it usually is an effective alias; the two generally behave the same.
However, when outputting a [pscustomobject] instance, > apparently produces an empty file (the file contains only the UTF16-LE BOM and a newline):
Steps to reproduce
# Use Out-File explicitly.
[pscustomobject] @{ one = 1 } | Out-File tmp.txt; Get-Content tmp.txt
'---'
# Use > instead of Out-File, which should produce the same result.
[pscustomobject] @{ one = 1 } > tmp.txt; Get-Content tmp.txtExpected behavior
one
---
1
---
one
---
1
Actual behavior
one
---
1
---
I.e., using > instead of Out-File resulted in an empty file (just the UTF16-LE BOM and a newline).
Environment data
PowerShell Core v6.0.0-beta.6 on macOS 10.12.6
PowerShell Core v6.0.0-beta.6 on Ubuntu 16.04.3 LTS
PowerShell Core v6.0.0-beta.6 on Microsoft Windows 10 Pro (64-bit; v10.0.15063)
Windows PowerShell v5.1.15063.502 on Microsoft Windows 10 Pro (64-bit; v10.0.15063)
Activity
Fix bugs with expression redirected to file (#4847)
Fix bugs with expression redirected to file (PowerShell#4847)