xargs与find经常结合来进行文件操作,平时删日志的时候只是习惯的去删除,比如
# find . -type f -name "*.log" | xargs rm -rf *
就将以log结尾的文件删除了,如果我想去移动或者复制就需要使用参数来代替了。
xargs -i 参数或者-I参数配合{}即可进行文件的操作。
-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.
--replace[=replace-str], -i[replace-str]
This option is a synonym for -Ireplace-str if replace-str is specified, and for -I{} otherwise. This option is deprecated; use -I instead.
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.
--replace[=replace-str], -i[replace-str]
This option is a synonym for -Ireplace-str if replace-str is specified, and for -I{} otherwise. This option is deprecated; use -I instead.
man了一下看的还是不太懂,通过例子,做作实验将我的理解写一下。
############### 操作的目录下的文件###############
[root@test05 ab]# ls
1kk.zip 3kk.zip 5kk.zip b.rar d.rar f.rar h.rar j.rar mini.txt ni.txt
2kk.zip 4kk.zip a.rar c.rar e.rar g.rar i.rar k.rar nii.txt
1kk.zip 3kk.zip 5kk.zip b.rar d.rar f.rar h.rar j.rar mini.txt ni.txt
2kk.zip 4kk.zip a.rar c.rar e.rar g.rar i.rar k.rar nii.txt
###################使用 i 参数 ##################
[root@test05 ab]# find . -type f -name "*.txt" | xargs -i cp {} /tmp/k/
[root@test05 ab]# ls ../k/
mini.txt nii.txt ni.txt
[root@test05 ab]#
[root@test05 ab]# find . -type f -name "*.txt" | xargs -i cp {} /tmp/k/
[root@test05 ab]# ls ../k/
mini.txt nii.txt ni.txt
[root@test05 ab]#
################### 使用 I 参数 ################
[root@test05 ab]# find . -type f -name "*.txt" | xargs -I {} cp {} /tmp/n/
[root@test05 ab]# ls ../n/
mini.txt nii.txt ni.txt
[root@test05 ab]# find . -type f -name "*.txt" | xargs -I {} cp {} /tmp/n/
[root@test05 ab]# ls ../n/
mini.txt nii.txt ni.txt
结果出来了,
加-i 参数直接用 {}就能代替管道之前的标准输出的内容;
加 -I 参数 需要事先指定替换字符
转自
xargs的i参数 - CSDN博客 https://blog.csdn.net/luojiafei/article/details/7213489