Hyperledger prerequisites

Hi, I am trying to set up the prerequisites for Hyperledger, but get (really!) stuck at 2 points:
1. When I run: curl -sSL http://bit/ly/2ysbOFE | bash -s to download the fabric samples and the fabric binaries there are several errors:

– pathspec ‘v2.0.0’ did not match any file(s) known to git

– main: line 74: wget: command not found

– tar(child): hyperledget-fabric-windows-amd64-2.0.0.tar.gz: Cannot open: No such file or directory
2. (I had this first one covered, but somehow got that as new error) When I did not have the error in 1, there was this error when trying to run “./byfn.sh up” after setting up the first network, with error:

– byfn.sh fails with binaries and docker images out of sync
Is there someone who can help me with this? Maybe even with teamviewer or anydesk? Because I have been trying day and night for the last 2 weeks (have checked all the items/questions and answers I could find on the internet and in my IBM hyperledger learning path book) and slowly getting defeated…
Thanks in advance! Wilma