Web site counters - if [ $? -eq 0 ] ; then
if [ $? -eq 0 ] ; then echo “Sub-processes killed.” ; fi } SetTimer() { DEF_TOUT=${1:-10}; if [ $DEF_TOUT -ne 0 ] ; then sleep $DEF_TOUT && kill -s 14 $$ & CHPROCIDS=”$CHPROCIDS $!” TIMERPROC=$! fi } UnsetTimer() { kill $TIMERPROC } # main() trap AlarmHandler 14 SetTimer 15 $PROG & CHPROCIDS=”$CHPROCIDS $!” wait $! UnsetTimer echo “All Done.” exit 0 Sams Teach Yourself Shell Programming in 24 Hours Contents Index Hour 19: Dealing with Signals Previous Chapter Next Chapter Sections in this Chapter: How Are Signal Represented? Conclusion Dealing with Signals Questions Previous Section Next Section Copyright Macmillan Computer Publishing. All rights reserved.
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