How to gunzip without delete?

Question

How to unzip .gz all archives without delete in specified folder?

I tried: gunzip *.gz /folder

Answer 1

Can be done with some bash scripting using gzip --stdout option and compute the uncompressed name with bash substitution:

for i in *.gz
do
   echo unzipping $i to /folder/${i/.gz}
   gunzip --stdout "$i" > "/folder/${i/.gz}"
done

the current implementation fails with filenames containing spaces.