用逗号分隔数字，神奇

$ echo "43243251134" | sed '{ > :start > s/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/ > t start > }' 43,243,251,134

 

转载于:https://www.cnblogs.com/hailspace/p/3393343.html