seq -w 10|sed -r "s#(.*)#useradd oldboy\1;echo 123456|passwd --stdin oldboy\1#g"|bash ip a s eth0|egrep "([0-9]+\.?){4}" -o|head -3|tail -1 find ./ -maxdepth 1 -type f -name "*.txt"|xargs -i cp {} oldgirl/
