I have cloned the EOS repository and trying to start the script using the following command.
`sh ./eosio_build.sh`
But it raises the following issue?
./eosio_build.sh: 33: ./eosio_build.sh: Bad substitution
./eosio_build.sh: 43: ./eosio_build.sh: Syntax error: "(" unexpected
Any help is appreciated.