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Re: Suggested enhancement to du command - show last modified date.

From: Paul Eggert
Subject: Re: Suggested enhancement to du command - show last modified date.
Date: Wed, 08 Jun 2005 12:21:10 -0700
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.4 (gnu/linux)

Thanks for contributing!  Some comments:

Internally, file time stamps should be maintained to nanosecond
resolution, not just 1-second resolution.

As far as the --last-modified option syntax goes, I suggest that
we use a syntax that is more like that of "touch --time".  E.g.,

  du --last-time='modify'

The default operand for --last-time would be 'modify' (or its alias
'mtime'), but the user could aso specify --last-time='access' (or its
alias 'atime' or 'use') or --last-time='change' (or its alias

For consistency the time stamp format option should use the same
option syntax as 'ls'.  E.g.,

  du --last-time='modify' --time-style='+%Y-%m-%d'

I suggest using the 'long-iso' time style as the default format, e.g.,
"2004-10-02 15:30".  This would be the default for "ls" if it weren't
for POSIX requirements; but since we are inventing an extension to
"du" we can use 'long-iso'.  There's no real need to put that ugly "T"
in the output.

William Brendling <address@hidden> writes:

> address@hidden last modified dates, displaying in @command{du}
> +Show the most recent last modified date of any of the files in the

That language is a bit hard to parse.  How about if you change "last
modified date" to "time of last data modification"?  That's what it
actually is.  This might require some rewording I suppose.

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