grepOutput = subprocess.run("gfrep -w NAME /etc/os-release", capture_output=True, shell=True) should be grepOutput = subprocess.run("grep -w NAME /etc/os-release", capture_output=True, shell=True)
grepOutput = subprocess.run("gfrep -w NAME /etc/os-release", capture_output=True, shell=True)
should be
grepOutput = subprocess.run("grep -w NAME /etc/os-release", capture_output=True, shell=True)