17 lines
373 B
Bash
17 lines
373 B
Bash
lookandsay() {
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local num=$1 char seq i
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for ((i=0; i<=${#num}; i++)); do
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char=${num:i:1}
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if [[ $char == ${seq:0:1} ]]; then
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seq+=$char
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else
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[[ -n $seq ]] && printf "%d%s" ${#seq} ${seq:0:1}
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seq=$char
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fi
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done
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}
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for ((num=1, i=1; i<=10; i++)); do
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echo $num
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num=$( lookandsay $num )
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done
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