I'm not sure why the recommended replacement string to use with xargs's -I is "{}". I just use "XXX" as the replacement string and stop worrying about how the s

I'm not sure why the recommended replacement string to use with xargs's -I is "{}". I just use "XXX" as the replacement string and stop worrying about how the shell is interpreting metacharacters in this particular case: find . | xargs -I XXX grep pat XXX