PHP
·
发表于 5年以前
·
阅读量：8300
#!/bin/bash
# add commas to numbers in factorial answer
factorial=1
counter=1
number=$1
while [ $counter -le $number ]
do
factorial=$[ $factorial * $counter ]
counter=$[ $counter + 1 ]
done
result=`echo $factorial | sed '{
:start
s/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/
t start
}'`
echo "The result is $result"