怎么用find清空一个文件

luodonghua

我想用find找到一个文件，然后清空它

> filename

这样可以清空一个文件，但是如何用find加上-exec选项来清空？

谢谢

对不起，刚才忘记说了，我在AIX 5.2下面

doni

find . -name file -exec \> {} \;
试试

mocou

find -name file -exec sed -i '1,$d' {} \;
用>不知道怎么做

luodonghua

原帖由 "doni" 发表：
find . -name file -exec \> {} \;
试试

兄弟，有点问题：
# lsdevora@ /home/lsdevora/bin >find . -name "*.txt" -exec \> {} \;
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.

luodonghua

原帖由 "mocou" 发表：
find -name file -exec sed -i '1,$d' {} \;
用>不知道怎么做

兄弟，sed也有问题

1. 
   
2. find: 0652-083 Cannot execute >:: A file or directory in the path name does not exist.
   
3. # lsdevora@ /home/lsdevora/bin >find . -name "*.txt" -exec sed -i '1,$d' {} \;
   
4. sed: Not a recognized flag: i
   
5. Usage:  sed [-n] Script [File ...]
   
6.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
   
7. sed: Not a recognized flag: i
   
8. Usage:  sed [-n] Script [File ...]
   
9.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
   
10. sed: Not a recognized flag: i
    
11. Usage:  sed [-n] Script [File ...]
    
12.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
    
13. sed: Not a recognized flag: i
    
14. Usage:  sed [-n] Script [File ...]
    
15.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
    
16. sed: Not a recognized flag: i
    
17. Usage:  sed [-n] Script [File ...]
    
18.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
    
19. sed: Not a recognized flag: i
    
20. Usage:  sed [-n] Script [File ...]
    
21.         sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
    

复制代码

biary

find . -name "*.f" -exec cp /dev/null {} \;

luodonghua

[quote]原帖由 "biary"]find . -name "*.f" -exec cp /dev/null {} \;[/quote 发表：


兄弟，谢谢你。你的方法可以用

谢谢大家的帮忙，兄弟我懂了。

mocou

[quote]原帖由 "biary"]find . -name "*.f" -exec cp /dev/null {} \;[/quote 发表：


这个通用。偶那个是你的系统不支持sed的-i

luodonghua

原帖由 "mocou" 发表：


这个通用。偶那个是你的系统不支持sed的-i

赫赫，aix里面没有哪个-i，linux下面有。
该死的日本公司松下，他喜欢用ibm的

zhhui2000

[quote]原帖由 "biary"]find . -name "*.f" -exec cp /dev/null {} \;[/quote 发表：


find . -name "*.f" -exec cat /dev/null  > {} \;