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22 lines
321 B
Bash
22 lines
321 B
Bash
#!/usr/bin/env bash
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# add commas to numbers in factorial answer
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factorial=1
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counter=1
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number=$1
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while [ $counter -le $number ]
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do
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factorial=$[ $factorial * $counter ]
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counter=$[ $counter + 1 ]
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done
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result=`echo $factorial | sed '{
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:start
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s/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/
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t start
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}'`
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echo "The result is $result"
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