+ local try=0
+ grep -qs pppd "/proc/$pid/cmdline" && kill -TERM $pid && \
+ while grep -qs pppd "/proc/$pid/cmdline" && [ $((try++)) -lt 5 ]; do sleep 1; done
+ grep -qs pppd "/proc/$pid/cmdline" && kill -KILL $pid && \
+ while grep -qs pppd "/proc/$pid/cmdline"; do sleep 1; done
+ rm -f "/var/run/ppp-${link}.pid"