this is a working method to setup unrar command for a mac osx
open terminal run the command below
cd ~/Desktopcurl -#LO http://www.rarlab.com/rar/rarosx-4.2.0.tar.gz
tar -xvf rarosx-4.2.0.tar.gzcd rarsudo mv unrar /usr/bin/Now you can run the unrar command
unrar e sample.rar








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