如果您的xargs版本不包含-I功能，那么另一种方法是编写一个包含您想要执行的命令的小shell脚本：

#!/bin/sh
exec i586-mingw32msvc-g++ "$@" -o outputFile...

然后使用xargs运行：

find . -type f -name "*.cpp" -print | xargs my_gcc_script

您不需要xargs来执行此操作。只需用途：

g++ `find . -type f -name '*.cpp'` -o outputFile

GNU Parallel http://www.gnu.org/software/parallel/也是一个解决方案：

find . -type f -name "*.cpp" -print | parallel -Xj1 g++ {} -o outputFile

• .cpp必须适合单行（~128 KB）。

为了回答标题中提出的原始问题，如何使用xargs将输入放在中间而不是结尾：

$ echo a b c | xargs -I {} echo before {} after
before a b c after

这将用管道输出替换命令中的{}。BSD和GNU xargs之间有一些细微的区别，如下所述：

BSD xargs（例如在MacOS/达尔文，freebsd）

使用-I REPLACE，它将替换命令中的字符串REPLACE（或您传递的任何内容）。举例来说：

$ echo a b c | xargs -I {} echo before {} after
before a b c after
$ echo a b c | xargs -I REPLACE echo before REPLACE after
before a b c after
$ echo 'a
> b
> c' | xargs -L1 -I {} echo before {} after
before a after
before b after
before c after

man page描述了该选项：

-I replstr
     Execute utility for each input line, replacing one or more occur-
     rences of replstr in up to replacements (or 5 if no -R flag is
     specified) arguments to utility with the entire line of input.
     The resulting arguments, after replacement is done, will not be
     allowed to grow beyond replsize (or 255 if no -S flag is speci-
     fied) bytes; this is implemented by concatenating as much of the
     argument containing replstr as possible, to the constructed argu-
     ments to utility, up to replsize bytes.  The size limit does not
     apply to arguments to utility which do not contain replstr, and
     furthermore, no replacement will be done on utility itself.
     Implies -x.

GNU xargs（例如：在Linux上）

$ echo a b c | xargs -i echo before {} after
before a b c after
$ echo a b c | xargs -I THING echo before THING after
before a b c after

使用-I REPLACE或-i参数，如the man page所述：

-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.
   -i[replace-str], --replace[=replace-str]
          This option is a synonym for -Ireplace-str if replace-str is
          specified.  If the replace-str argument is missing, the effect
          is the same as -I{}.  This option is deprecated; use -I
          instead.

-I上的-L 1意味着它将在单独的命令中执行每个输入：

$ echo "a
> b
> c" | xargs -I THING echo before THING after
before a after
before b after
before c after