Re: atime, ctime, mtime, what time?

[gerrynix <gerrynix@xxxxxxxxx>]

What changes need to occur to affect each time on a file or directory?
So far I have:

Atime:
read a file
modify the permissions
modify the ownership
create new file

Ctime:
modify the permissions
modify the ownership
modify the first level of contents of a directory
create new file

Mtime:
modify the contents of a file
create new file

This is based of the googling and limited testing I have done.

Which begs a question, wiki, for what it's worth, states that if a
permission or ownership change is made that both the atime and ctime
will be modified. http://en.wikipedia.org/wiki/Stat_(Unix)

How can a ctime be newer than an atime?

Thanks,
Travis

Interesting... I changed permissions on a file just now, that hadn;t been touched in a few days. ctime was updated but not atime or mtime. 

 

$ find . -ctime -1 -print | grep filename

The file was reported

$ find . -atime -1 -print | grep filename

The file was not reported

same as above for mtime

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