thanks for your answer, I didn't know Path::Tiny do the work as File::Slurp, and $fh->print is same as print $fh, I have finished the script, all works great, the process substitution of shell is pipe to /dev/fd/ in essence

In reply to Re^2: how perl do 'envsubst' by vincentaxhe
in thread how perl do 'envsubst' by vincentaxhe

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