#2723 Displaying the contents of a non-existent file with -so option doesn't provide any indication of an error

[Christian Blackburn]

I'm trying to report a bug against the 7-Zip CLI. Basically if you take any valid zip file and ask it to display a non-existent internal file, it provides an exit code of 0 (wrong) and gives an empty STDERR (also wrong).

Repro:

1. 7zr e real.7z no_file_by_this_name.txt -so

Result:
Exit code = 0, STDOUT/STDERR both empty.

Expected:
Exit code !=0, STDERR complains that it couldn't find a "no_file_by_this_name.txt" file inside the archive.

[Christian Blackburn]

I should clarify this issue was encountered with 7zr.exe:
7-Zip (r) 26.05 (x86) : Igor Pavlov : Public domain : 2026-10-21