Automator Zip Compress / Uncompress with pattern filename

keka extract to folder.ext.sh

for f
do
 echo "$f"
 dest="${f}.ext"
 cmd="/Applications/Keka.app/Contents/Resources/keka7z -y -o\"${dest}\" x \"${f}\""
 echo $cmd
 eval $cmd
done

Can be easily use with Automator with shell /bin/bash

Keka extract to folder.ext.sh

Keka Uncompress multiple compressed files to a sub directory with zipFilename.ext name under zipfilename directory.
Need Keka 1.1

Compress Selected file

to a zip file with name yyyymmdd_FirstFile.zip pattern.

e.g.:

aa.txt
bb.txt

will produce a 20171226_aa.zip with aa.txt and bb.txt