find 命令-exec，xargs用法

[root@localhost ~]# cd
[root@localhost ~]# pwd
/root
[root@localhost ~]# mkdir xarg-test
[root@localhost ~]# cd xarg-test/
[root@localhost xarg-test]# ls
[root@localhost xarg-test]# touch yufei-test
[root@localhost xarg-test]# find . -name yufei-test
./yufei-test
[root@localhost xarg-test]# ll /tmp/yufei-test
ls: /tmp/yufei-test: No such file or directory
[root@localhost xarg-test]# find . -name yufei-test -exec cp {} /tmp \;
[root@localhost xarg-test]# ll /tmp/yufei-test
-rw-r--r-- 1 root root 0 May 8 11:01 /tmp/yufei-test
[root@localhost xarg-test]# rm /tmp/yufei-test
rm: remove regular empty file `/tmp/yufei-test'? yes
[root@localhost xarg-test]# ll /tmp/yufei-test
ls: /tmp/yufei-test: No such file or directory
[root@localhost xarg-test]# find . -name yufei-test | xargs cp --target-directory=/tmp
[root@localhost xarg-test]# ll /tmp/yufei-test
-rw-r--r-- 1 root root 0 May 8 11:02 /tmp/yufei-test
[root@localhost xarg-test]ls . | xargs -t cp ./{} /tmp

上述命令意思是把当前目录下的内容列举出来，并复制到/tmp目录。

一  查找文件名或者指定文件创建时间为10天前并且移动到指定目录

[root@localhost jacky]# pwd
/home/test/tmp/jacky
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
jacky
[root@localhost jacky]# find . -name "file*" -exec mv {} .. \;[root@localhost jacky]# find ./ -mtime +10  -exec mv {}  /archivelog/ \;
[root@localhost jacky]# ls
[root@localhost jacky]# ls ..
file1  file2  file3  jacky
[root@localhost jacky]#

二  同MV一样，也可以用exec选项执行cp命令，如下：

root@localhost jacky]# pwd
/home/test/tmp/jacky
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
jacky
[root@localhost jacky]# find . -name "file*" -exec cp {} .. \;
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
file1  file2  file3  jacky
[root@localhost jacky]#

三 使用xargs执行cp

root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# find . -name "file*" | xargs -i cp {} {}.bak
[root@localhost jacky]# ls
file1  file1.bak  file2  file2.bak  file3  file3.bak
[root@localhost jacky]#

四 使用xargs执行mv

[root@localhost jacky]# pwd
/home/test/tmp/jacky
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
jacky

[root@localhost jacky]# find . -name "file*" | xargs -i mv {} ..
[root@localhost jacky]# ls
[root@localhost jacky]# ls ..
file1  file2  file3  jacky
[root@localhost jacky]#

五  find后执行xargs提示xargs: argument line too long解决方法：

find . -type f -atime +20 -print0 | xargs -0 -l1 -t rm -f

-l1是一次处理一个

-t是处理之前打印出命令

 六 xargs选项的其他用法

[root@localhost jacky]# pwd
/home/test/tmp/jacky
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
jacky
[root@localhost jacky]# find . -name "file*" | xargs -I [] cp [] ..
[root@localhost jacky]# ls ..
file1  file2  file3  jacky

使用-i参数默认的前面输出用{}代替，-I参数可以指定其他代替字符，如例子中的[]

七  xargs的-p参数的使用

[root@localhost jacky]# pwd
/home/test/tmp/jacky
[root@localhost jacky]# ls
file1  file2  file3
[root@localhost jacky]# ls ..
jacky
[root@localhost jacky]# find . -name "file*" | xargs -p -i mv {} ..
mv ./file3 .. ?...y
mv ./file1 .. ?...y
mv ./file2 .. ?...n
[root@localhost jacky]# ls
file2
[root@localhost jacky]# ls ..
file1  file3  jacky

-p参数会提示让你确认是否执行后面的命令,y执行，n不执行。