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mastering-unix-ss/chapter21/function_twirl
Fabio Scotto di Santolo 4cc88d2f6e initial commit
2020-07-28 19:28:25 +02:00

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function twirl
{
TCOUNT="0" # For each TCOUNT the line twirls one increment
while : # Loop forever...until you break out of the loop
do
TCOUNT=$(expr ${TCOUNT} + 1) # Increment the TCOUNT
case ${TCOUNT} in
"1") echo '-'"\b\c"
sleep 1
;;
"2") echo '\\'"\b\c"
sleep 1
;;
"3") echo "|\b\c"
sleep 1
;;
"4") echo "/\b\c"
sleep 1
;;
*) TCOUNT="0" ;; # Reset the TCOUNT to "0", zero.
esac
done
# End of twirl finction
}