From: "John P. Linderman" <jpl.jpl@gmail.com>
To: "Greg 'groggy' Lehey" <grog@lemis.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] Command line options and complexity
Date: Sat, 14 Mar 2020 15:52:08 -0400 [thread overview]
Message-ID: <CAC0cEp-dL2iPikiGvaQ_s9_6AS=mFO4RvbT423fNJ3gQiLdthQ@mail.gmail.com> (raw)
In-Reply-To: <20200314043505.GD44529@eureka.lemis.com>
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Here's a command I wrote long ago using a different way to deal with
options:
*isee*
Usage: isee format file ...
Display specified inode information for files passed as arguments.
Items of the form ``%X'' in format will be replaced for these X:
dev inode ino mode nlink uid gid rdev size atime
mtime ctime now filename
Parenthesized printf-style format specifications can follow a %
to override the default format for the various items.
%filename is the name of the current file argument.
%now is the time (in seconds) when the command started running.
The other items are from the stat structure.
Example: isee "%(40s)filename: %mtime %mode" /dev/null
Show file modification time and mode of /dev/null
inode is just a synonym for ino.
Instead of a kazillion options, the %-stat-field items identify *what* you
want to see and the printf-style formats identify *how* you want them
shown. Someone in the Murray Hill library added strftime formats for date
fields, a fine addition, in my view. Adding readable user and group names
rather than numerical ids would be worth considering. *Maybe* having a
"rwx"-style form for mode. Sorting can be done by piping the output through
sort. Don't get hung up on shortcomings of the command, just consider how a
few familiar concepts and pipes can be combined to provide a large number
of options.
On Sat, Mar 14, 2020 at 12:35 AM Greg 'groggy' Lehey <grog@lemis.com> wrote:
> On Friday, 13 March 2020 at 21:45:21 +1100, Dave Horsfall wrote:
> > On Fri, 13 Mar 2020, Greg 'groggy' Lehey wrote:
> >
> >>> -h is a gnuism, isn't it?
> >>
> >> It might have originated there, but then I would expect it to be spelt
> >> '--produce-human-readable-output'. I haven't been able to establish
> from the
> >> FreeBSD sources or commit logs when it was introduced. It would
> clearly have
> >> been a reimplementation.
> >
> > It's in "df" as well, praise Cthulu:
> >
> > aneurin# df -h
> > Filesystem Size Used Avail Capacity Mounted on
> > /dev/ad0s1a 496M 302M 154M 66% /
> > /dev/ad0s1d 2.9G 1.4G 1.2G 54% /usr
> > /dev/ad0s1e 989M 581M 329M 64% /var
> ...
>
> It also has the , option:
>
> === grog@eureka (/dev/pts/72) ~ 8 -> df -,
> Filesystem 1048576-blocks Used Avail Capacity Mounted on
> /dev/ada0p4 39,662 21,918 14,571 60% /
> /dev/ada0p2 39,662 13,447 23,042 37% /destdir
> /dev/ada0p5 3,705,520 1,831,345 1,577,733 54% /home
> /dev/ada1p1 7,629,565 6,358,607 1,194,661 84% /Photos
>
> I find it much easier to see the relative size like that.
>
> Greg
> --
> Sent from my desktop computer.
> Finger grog@lemis.com for PGP public key.
> See complete headers for address and phone numbers.
> This message is digitally signed. If your Microsoft mail program
> reports problems, please read http://lemis.com/broken-MUA
>
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next prev parent reply other threads:[~2020-03-14 19:53 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 10:45 Dave Horsfall
2020-03-14 4:35 ` Greg 'groggy' Lehey
2020-03-14 19:52 ` John P. Linderman [this message]
2020-03-14 20:25 ` Steffen Nurpmeso
-- strict thread matches above, loose matches on Subject: below --
2020-03-10 18:42 Doug McIlroy
2020-03-10 19:38 ` Dan Cross
2020-03-10 16:15 Doug McIlroy
2020-03-10 17:38 ` Dan Cross
2020-03-10 17:44 ` Bakul Shah
2020-03-10 18:09 ` Dan Cross
2020-03-05 4:57 Doug McIlroy
2020-03-05 22:17 ` Diomidis Spinellis
2020-03-04 14:06 Nelson H. F. Beebe
2020-03-04 16:17 ` John P. Linderman
2020-03-04 17:25 ` Bakul Shah
2020-03-05 0:55 ` Rob Pike
2020-03-05 2:05 ` Kurt H Maier
2020-03-05 4:17 ` Ken Thompson via TUHS
2020-03-05 14:53 ` Dan Cross
2020-03-05 21:50 ` Dave Horsfall
2020-03-05 21:56 ` Warner Losh
2020-03-08 5:26 ` Greg 'groggy' Lehey
2020-03-08 5:32 ` Jon Steinhart
2020-03-08 9:30 ` Tyler Adams
[not found] ` <CAC0cEp8eFRkkLTw88WVaKZoKy+qsrhuC8LkzmmsbqtdZgMf8eQ@mail.gmail.com>
[not found] ` <CAEuQd1D7+dfap98AwPo2W41+06prrcVaAWk3Ve-ve0uQ0xBu3Q@mail.gmail.com>
2020-03-09 21:06 ` John P. Linderman
2020-03-09 21:22 ` Kurt H Maier
2020-03-11 17:41 ` John P. Linderman
2020-03-11 21:29 ` Warner Losh
2020-03-12 0:13 ` John P. Linderman
2020-03-12 0:34 ` Chet Ramey
2020-03-12 12:57 ` John P. Linderman
2020-03-12 19:24 ` Steffen Nurpmeso
2020-03-08 9:51 ` Michael Kjörling
2020-03-03 18:15 Jon Steinhart
2020-03-03 18:44 ` Adam Thornton
2020-03-04 4:11 ` Tyler Adams
2020-03-04 6:03 ` Dave Horsfall
2020-03-04 6:48 ` arnold
2020-03-04 21:17 ` Dave Horsfall
2020-03-05 0:49 ` Lyndon Nerenberg
2020-03-05 20:54 ` Dave Horsfall
2020-03-05 22:01 ` William Cheswick
2020-03-04 21:50 ` Random832
2020-03-04 23:19 ` Steffen Nurpmeso
2020-03-05 6:12 ` Alan D. Salewski
2020-03-04 22:03 ` Random832
2020-03-04 23:25 ` Terry Jones
2020-03-10 23:03 ` Dan Stromberg
2020-03-11 3:18 ` Dave Horsfall
2020-03-11 4:02 ` Steve Nickolas
2020-03-11 22:56 ` Greg 'groggy' Lehey
2020-03-11 23:14 ` Dan Cross
2020-03-12 0:42 ` Greg 'groggy' Lehey
2020-03-12 0:53 ` Steve Nickolas
2020-03-12 3:09 ` Greg 'groggy' Lehey
2020-03-12 3:34 ` Steve Nickolas
2020-03-13 1:02 ` Greg 'groggy' Lehey
2020-03-12 5:38 ` Dave Horsfall
2020-03-12 6:48 ` Peter Jeremy
2020-03-12 7:37 ` Steve Nickolas
2020-03-12 7:42 ` Warner Losh
2020-03-12 23:57 ` Greg 'groggy' Lehey
2020-03-12 5:22 ` Dave Horsfall
2020-03-12 5:35 ` Steve Nickolas
2020-03-13 0:36 ` Greg 'groggy' Lehey
2020-03-13 11:26 ` Dave Horsfall
2020-03-14 2:13 ` Greg A. Woods
2020-03-14 4:31 ` Greg 'groggy' Lehey
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