NOTE: Starting with version 12.1.0.3, emcli is automatically installed and configured in the OMS home.
export JAVA_HOME=/u01/app/oracle/product/agent13c/agent_13.4.0.0.0/oracle_common/jdk/jre/
export INSTDIR=/u01/app/oracle/product/emcli
mkdir -p ${INSTDIR}/conf
wget -P ${INSTDIR} --quiet --no-check-certificate https://myoemserver:7803/em/public_lib_download/emcli/kit/emclikit.jar
${JAVA_HOME}/bin/java -jar ${INSTDIR}/emclikit.jar -install_dir=${INSTDIR}/emcli
Add the value of ${INSTDIR} to PATH in your current environment and, if this is a permanent install, in your .bash_profile (or equivalent).
TODO
emcli setup -url=https://myoemserver:7803/em -username="sysman" -password="mySYSMANpwd" -dir="${INSTDIR}/conf" -trustall -noregister -noautologin