Tar and --newer / --after-date parameter

问题:

My project structure is the following:

-sprint41
 -file1
 -file2
-sprint40
 -file1
 -file2

• All my files(+ sprint41) in sprint41 folder have a modified date 20130807
• All my files(+ sprint40) in sprint40 folder have a modified date 20130610

I want to create an archive including all the files(+folder) after 20130715. My command is the following:

tar -cf test.tar --after-date 20130715 *

After this command, test.tar contains the following:

-sprint41
 -file1
 -file2
-sprint40

It is keeping sprint40 folder even though the modified date is before 20130715

I am expecting to have the following:

-sprint41
 -file1
 -file2

Do you have a clue ?

Many thanks

回答1:

Yeah, the problem is that tar will still include the directories even if they are empty. It's only really checking the --newer option on files, not directories. Going to have to either write a small script or use find with -cnewer and pipe the output into tar (with --no-recursion on tar command).

Create a file with the timestamp you want with

 touch -t 201307150000 timefile.txt

Then Somthing like:

find . -cnewer timefile.txt -print0 | xargs -0 tar --no-recursion -cf test.tar