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Top Forums UNIX for Beginners Questions & Answers Need help with UNIX command to get the latest file from list of files with timestamp Post 303032134 by jim mcnamara on Tuesday 12th of March 2019 11:20:27 AM
Old 03-12-2019
Using the filenames as the ONLY time reference:
Code:
newest=$( ls abcd*|  sort -n -k2 -t '.' | tail -1 )

Using file mtimes (last time written to, the default for ls -l )
Code:
newest=$( ls -rt '.' | tail -1 )

The inode time ls -c abcd* is another internal time kept. This is almost always the file creation time. File creation time (birth time) is not universal, older UNIXes filesystems do not support it.

Since your question vague this is about the best we can do for you. We need your shell and your OS (uname -a shows this) to do better.

Last edited by jim mcnamara; 03-12-2019 at 12:32 PM..
This User Gave Thanks to jim mcnamara For This Post:
 

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FILECTIME(3)								 1							      FILECTIME(3)

filectime - Gets inode change time of file

SYNOPSIS
int filectime (string $filename) DESCRIPTION
Gets the inode change time of a file. PARAMETERS
o $filename - Path to the file. RETURN VALUES
Returns the time the file was last changed, or FALSE on failure. The time is returned as a Unix timestamp. EXAMPLES
Example #1 A filectime(3) example <?php // outputs e.g. somefile.txt was last changed: December 29 2002 22:16:23. $filename = 'somefile.txt'; if (file_exists($filename)) { echo "$filename was last changed: " . date("F d Y H:i:s.", filectime($filename)); } ?> ERRORS
/EXCEPTIONS Upon failure, an E_WARNING is emitted. NOTES
Note Note: In most Unix filesystems, a file is considered changed when its inode data is changed; that is, when the permissions, owner, group, or other metadata from the inode is updated. See also filemtime(3) (which is what you want to use when you want to create "Last Modified" footers on web pages) and fileatime(3). Note Note also that in some Unix texts the ctime of a file is referred to as being the creation time of the file. This is wrong. There is no creation time for Unix files in most Unix filesystems. Note Note that time resolution may differ from one file system to another. Note The results of this function are cached. See clearstatcache(3) for more details. Tip As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine which wrappers support stat(3) family of functionality. SEE ALSO
filemtime(3). PHP Documentation Group FILECTIME(3)
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