On Fri, Aug 28, 2015 at 9:04 AM, sosogh <sos...@mail.com> wrote: > >> parallel -a iplist.txt 'ssh -qtt {} "sudo whoami" </dev/null' > >> parallel -a iplist.txt 'ssh -qtt {} "sudo whoami"' </dev/null > >> cat iplist.txt | parallel 'ssh -qtt {} "sudo whoami"' > > Thank you . > > I have a strange problem , > if cat iplist.txt | parallel 'ssh -qtt {} "sudo /usr/sbin/userdel -rf > abcuser " ' , it still freeze , > but sudo other cmd will work well .
I have tested and cannot reproduce this. I think it is a local problem on your system(s). You could try: cat iplist.txt | parallel -uj1 'ssh -qtt {} "sudo /usr/sbin/userdel -rf abcuser " ' cat iplist.txt | parallel --tty 'ssh -qtt {} "sudo /usr/sbin/userdel -rf abcuser " ' cat iplist.txt | parallel --dry-run 'ssh -qtt {} "sudo /usr/sbin/userdel -rf abcuser " ' > /tmp/foo bash -x /tmp/foo How small can you make iplist.txt and still get the issue? Can it just contain localhost? To debug the problem it is very important to be able to reproduce the error. Therefore I would like you to reproduce the problem on one of the virtualboxes from http://sourceforge.net/projects/virtualboximage/files/ /Ole