mtime (modification time) indicates the time the contents of the file has been changed. Mind you, only the contents. Not the attributes. For instance, if you open a file and change some (or all) of its content, its mtime gets updated. If you change a file's attribute (like read-write permissions, metadata), its mtime doesn't change, but ctime will.
atime
atime (access time) is the timestamp that indicates the time that a file has been accessed. The file may have been opened by you, or may have been accessed by some other program or a remote machine. Anytime a file has been accessed, its access time changes.
ctime
ctime (change time) is the timestamp of a file that indicates the time that it was changed. Now, the modification can be in terms of its content or in terms of its attributes. Whenever anything about a file changes (except its access time), its ctime changes.
Source:What is the difference between mtime, atime and ctime?
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发表于 2018-5-16 08:21:02
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