Jay Ridgley schreef op 24-09-2017 13:10: > Good? Morning, > > On one of my systems I have started getting the following message in > response to various commands: > > cdjsys at mateo:~$ ifconfig > -bash: /sbin/ifconfig: Input/output error > Any ideas??? Make sure /dev/null is a special device. And not a regular file. Regards.