This is an example that I have done: step 4. mv ejre-1_6_0_21-fcs-b09-linux-arm-vfp-eabi-min-27_sep_2010.tar.gz/ opt/ejre-1_6_0_21-fcs-b09-linux-arm-vfp-eabi-min-27_sep_2010.tar.gz I already wrote filename correctly, but always <no such file or directory? What is still something is missing here?