xargs中的参数位置
find . -size +50M -print0 | xargs -0 -I {} cp {} largefolder/
使用-I参数，后面跟的符号表明用该符号替代find传递过来的值。
man xargs
-I replace-str
Replace occurrences of replace-str in the initial-arguments with
names read from standard input. Also, unquoted blanks do not
terminate input items; instead the separator is the newline
character. Implies -x and -L 1.
参考：
