如何使用find命令获取昨天创建的文件？

Question

与 find 一起使用什么选项来获取昨天在 Linux 脚本上创建的文件？

以下试验不起作用：

find /log/bssuser/CDR/Postpaid_CDR_Log/ -newer yesterday

或者

find -mtime 24

-----------------------------
the below command get files for today 10/10

[bssuser@t-bss-bill-app-01 Amany]$ find -newermt yesterday -ls
142619049    4 drwxrwxr-x   2 bssuser  bssuser      4096 Oct 10 08:40 .
142619072    4 -rwxrwxr-x   1 bssuser  bssuser      2376 Oct 10 08:40 ./test_am.sh
142619050    4 -rw-rw-r--   1 bssuser  bssuser       433 Oct 10 08:40 ./errors.csv
142619058    4 -rw-rw-r--   1 bssuser  bssuser       323 Oct 10 08:40 ./logs.csv

Answer 1

该find命令的-[acm]time谓词很棘手。

特别是，-mtime n匹配修改时间介于当前时间n和n+124 小时之前的文件。所以

find . -mtime 1

将查找 24 到 48 小时之前的文件。要查找与日历日相关的文件，GNUfind有-daystart选项，因此要查找在前一个日历日修改的文件，您可以使用

find . -daystart -mtime 1

也可以看看：

• 为什么 find -mtime +1 只返回 2 天之前的文件？
• “find .-daystart -mtime”和“find .-mtime”之间有什么区别？

Answer 2

您可以使用：

find -newermt yesterday -ls

它是如何工作的，详细信息来自man find：

-newerXY reference
       Succeeds if timestamp X of the file being considered is newer than timestamp Y of the file reference.  The letters X and Y
       can be any of the following letters:

       a   The access time of the file reference
       B   The birth time of the file reference
       c   The inode status change time of reference
       m   The modification time of the file reference
       t   reference is interpreted directly as a time

       Some combinations are invalid; for example, it is invalid for X to be t.  Some combinations are  not  implemented  on  all
       systems;  for  example  B is not supported on all systems.  If an invalid or unsupported combination of XY is specified, a
       fatal error results.  Time specifications are interpreted as for the argument to the -d option of GNU date.  If you try to
       use  the  birth  time of a reference file, and the birth time cannot be determined, a fatal error message results.  If you
       specify a test which refers to the birth time of files being examined, this test will fail for any files where  the  birth
       time is unknown.