find . -name "*.txt" -exec rm {} \;
find . -name "*.txt" | xargs rm {}?


-exec
? ? 1.參數是一個一個傳遞的，傳遞一個參數執行一次rm
? ? 2.文件名有空格等特殊字符也能處理
-xargs?
? ? 1.一次將參數傳給命令，可以使用-n控制參數個數
? ? 2.處理特殊文件名需要采用如下方式：
? ? find . -name "*.txt" print0 |xargs -0 rm {}?

實驗結果如下，可以清楚看到參數傳遞過程

[cpp] view plain copy

[root@andes.com?~/tmp/dir]#find?.?-type?f?|xargs?-t?-n?2?echo??

echo?./data.txt?./env2.txt???

./data.txt?./env2.txt??

echo?./env.txt?./export2.txt???

./env.txt?./export2.txt??

echo?./s.txt?./d.txt???

./s.txt?./d.txt??

echo?./export.txt?./set.txt???

./export.txt?./set.txt??

echo?./fuck.txt???

./fuck.txt??

[root@andes.com?~/tmp/dir]#find?.?-type?f?-exec?echo?begin?{}?\;??

begin?./data.txt??

begin?./env2.txt??

begin?./env.txt??

begin?./export2.txt??

begin?./s.txt??

begin?./d.txt??

begin?./export.txt??

begin?./set.txt??

begin?./fuck.txt??

[root@andes.com?~/tmp/dir]#??

技巧： find -print0 ?與 xargs -0 的結合避免文件名有特殊字符如空格，引號等無法處理：

?find . -name "*.txt" print0 |xargs -0 rm {}?

find?

? ? ? ?-print True; print the full file name on the standard output, followed by a newline. ? If you are piping the
? ? ? ? ? ? ? output of find into another program and there is the faintest possibility that the ?files ?which ?you
? ? ? ? ? ? ? are ?searching ?for ?might ?contain ?a ?newline, then you should seriously consider using the -print0
? ? ? ? ? ? ? option instead of -print. ?See the UNUSUAL FILENAMES section for information about how unusual ?char-
? ? ? ? ? ? ? acters in filenames are handled.


? ? ? ?-print0
? ? ? ? ? ? ? True; ?print ?the full file name on the standard output, followed by a null character (instead of the
? ? ? ? ? ? ? newline character that -print uses). ?This allows file names that contain newlines or other types ?of
? ? ? ? ? ? ? white space to be correctly interpreted by programs that process the find output. ?This option corre-
? ? ? ? ? ? ? sponds to the -0 option of xargs.

xargs?

? ? ? ?-0 ? ? Input items are terminated by a null ?character ?insteadof ?by
? ? ?whitespace, ?and the quotes and backslash are not special (every
? ? ?character is taken literally). ?Disables the end of file string,
? ? ?which ?istreated ?likeany other argument. ?Useful when input
? ? ?items might contain white space, quote ?marks, ?or ?backslashes.
? ? ?The ?GNU find ?-print0 ?option produces input suitable for this
? ? ?mode.

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