bug#22945: Surprising behaviour (bug?) of zgrep in combination with the -f option and process substitutions

[Antonio Diaz Diaz]

Paul Eggert wrote:
> Draft gzip 1.7 doesn't work for me (Fedora 23 x86-64). I have worked on 
> a patch but don't have a reliable fix yet, or even a portable test case 
> to illustrate the bug. Perhaps we should just think of it as a known bug 
> for now.

What about using command substitution with '-e' instead of process 
substitution with '-f'?

  zgrep -e "$(cat FILE)" file1.lz file2.gz


Best regards,
Antonio.