kellyremo <kellyremo <at> zoho.com> writes: > ... > Goal: if theres no internet connection, then the oneliner must loop until > there is internet connection. if theres internet connection the oneliner > ends.what am i missing? > ...
Test: 1. there is internet connection to both $ TORF=true; while $TORF; do ping -W 1 -c 1 bix.hu >& /dev/null && ping -W 1 -c 1 www.yahoo.com >& /dev/null && TORF=false || TORF=true; echo $TORF; sleep 1; done false $ 2. there is no internet connection to at least one $ TORF=true; while $TORF; do ping -W 1 -c 1 www.blakstar.org >& /dev/null && ping -W 1 -c 1 www.yahoo.com >& /dev/null && TORF=false || TORF=true; echo $TORF; sleep 1; done true true true true ^C $ Nota bene ! Let's assume negation is represented by "~" sign. ~(a && b) equivalent to ~a || ~b ~(a || b) equivalent to ~a && ~b JB -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
