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I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without

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  I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-13 01:16 +0000
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-13 02:40 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-08-13 08:57 -0400
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Jason H <jason_hindle@yahoo.com> - 2025-08-14 21:05 +0000
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-15 08:37 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without John Ames <commodorejohn@gmail.com> - 2025-08-15 08:13 -0700
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-15 18:26 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-15 22:37 +0000
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-16 00:43 +0000
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-16 02:10 +0000
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Chris Ahlstrom <OFeem1987@teleworm.us> - 2025-08-13 08:53 -0400
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-14 00:45 +0100
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-14 01:09 +0000
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without jayjwa <jayjwa@atr2.ath.cx.invalid> - 2025-08-13 11:01 -0400
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E. R." <robin_listas@es.invalid> - 2025-08-13 17:16 +0200
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-16 08:27 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-16 08:32 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without The Natural Philosopher <tnp@invalid.invalid> - 2025-08-13 17:31 +0100
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-13 21:30 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Allodoxaphobia <trepidation@example.net> - 2025-08-13 19:48 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-13 20:10 +0000
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-13 19:34 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-13 21:31 +0000
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E. R." <robin_listas@es.invalid> - 2025-08-13 23:40 +0200
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-13 23:42 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-14 01:08 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E. R." <robin_listas@es.invalid> - 2025-08-14 10:51 +0200
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-14 08:53 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-14 01:30 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-14 01:05 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Rene Kita <mail@rkta.de> - 2025-08-15 04:55 +0000
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-15 05:38 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Rene Kita <mail@rkta.de> - 2025-08-20 05:54 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-16 08:33 +0000
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Rich <rich@example.invalid> - 2025-08-16 18:28 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-16 19:05 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without The Natural Philosopher <tnp@invalid.invalid> - 2025-08-16 21:08 +0100
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-16 20:38 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-17 00:38 +0000
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-17 09:08 +0100
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-17 09:16 +0000
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-17 22:27 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Richard Kettlewell <invalid@invalid.invalid> - 2025-08-16 22:27 +0100
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-17 00:44 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-17 09:02 +0100
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Richard Kettlewell <invalid@invalid.invalid> - 2025-08-18 08:31 +0100
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-18 08:21 +0000
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Nuno Silva <nunojsilva@invalid.invalid> - 2025-08-22 10:18 +0100
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-19 12:06 +0200
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 00:50 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 12:20 +0200
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:16 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-23 12:22 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 00:38 +0200
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Stéphane CARPENTIER <sc@fiat-linux.fr> - 2025-08-24 11:15 +0000
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-24 22:44 +0200
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-24 22:16 +0000
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-08-21 11:44 +0300
    Re: I?m A Linux Expert, And Here Are 6 Commands I Can?t Live Without John McCue <jmclnx@gmail.com.invalid> - 2025-08-13 21:05 +0000
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2025-08-14 14:50 +0300
      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-08-14 22:45 +0000
        Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-08-16 00:20 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-16 02:07 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-08-19 13:40 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-16 09:47 +0000
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-08-16 17:04 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-17 00:45 +0000
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-17 07:20 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without rbowman <bowman@montana.com> - 2025-08-17 07:18 +0000
          Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-19 12:28 +0200
            Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 00:59 +0000
              Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-20 12:32 +0200
                Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-20 22:21 +0000
                  Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 02:29 +0200
                    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Lawrence D’Oliveiro <ldo@nz.invalid> - 2025-08-21 01:29 +0000
                      Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without "Carlos E.R." <robin_listas@es.invalid> - 2025-08-21 12:46 +0200
    Re: I’m A Linux Expert, And Here Are 6 Commands I Can’t Live Without Jason H <jason_hindle@yahoo.com> - 2025-08-14 21:07 +0000

Page 4 of 4 — ← Prev page 1 2 3 [4]

#71120

On Thu, 14 Aug 2025 14:50:06 +0300, Anssi Saari wrote:

> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
> 
>> What’s an obvious omission from his list? To me, it’s the “find”
>> command.
> 
> Possibly or something like it. I just started looking into rawhide which
> is another search tool. My interest is rawhide's ability to search for
> tags in extended attributes. I've started adding tags to videos and
> photos so I can search for those with rawhide.

The “find” command has the ability to execute external commands. Those can 
produce output on their own, and/or their success/failure exit status can 
be used as a filter on matching files.

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#71296

Lawrence D'Oliveiro <ldo@nz.invalid> wrote at 22:45 this Thursday (GMT):
> On Thu, 14 Aug 2025 14:50:06 +0300, Anssi Saari wrote:
>
>> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>> 
>>> What’s an obvious omission from his list? To me, it’s the “find”
>>> command.
>> 
>> Possibly or something like it. I just started looking into rawhide which
>> is another search tool. My interest is rawhide's ability to search for
>> tags in extended attributes. I've started adding tags to videos and
>> photos so I can search for those with rawhide.
>
> The “find” command has the ability to execute external commands. Those can 
> produce output on their own, and/or their success/failure exit status can 
> be used as a filter on matching files.


To be fair, "find" can be a bit of a rabbithole to learn. I personally
only know the basics of -name, -iname, and -type.
-- 
user <candycane> is generated from /dev/urandom

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#71312

On Sat, 16 Aug 2025 00:20:08 -0000 (UTC), candycanearter07 wrote:

> Lawrence D'Oliveiro <ldo@nz.invalid> wrote at 22:45 this Thursday (GMT):
>>
>> The “find” command has the ability to execute external commands.
>> Those can produce output on their own, and/or their success/failure
>> exit status can be used as a filter on matching files.
>
> To be fair, "find" can be a bit of a rabbithole to learn.

The term for that is “deep” software: it doesn’t scare you with a
whole lot of complexity up front. Instead, it offers some initial
features that aren’t that hard to use, but the more you dig beneath
the surface, the more capabilities you find. This is why it’s good
that the man page is always handy: you can keep going back to it and
discovering new things as you need them.

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#71662

Lawrence D’Oliveiro <ldo@nz.invalid> wrote at 02:07 this Saturday (GMT):
> On Sat, 16 Aug 2025 00:20:08 -0000 (UTC), candycanearter07 wrote:
>
>> Lawrence D'Oliveiro <ldo@nz.invalid> wrote at 22:45 this Thursday (GMT):
>>>
>>> The “find” command has the ability to execute external commands.
>>> Those can produce output on their own, and/or their success/failure
>>> exit status can be used as a filter on matching files.
>>
>> To be fair, "find" can be a bit of a rabbithole to learn.
>
> The term for that is “deep” software: it doesn’t scare you with a
> whole lot of complexity up front. Instead, it offers some initial
> features that aren’t that hard to use, but the more you dig beneath
> the surface, the more capabilities you find. This is why it’s good
> that the man page is always handy: you can keep going back to it and
> discovering new things as you need them.


Well yeah, but the "basic" usage still requires a few switches, and its
not outlined in examples. I'm not surprised those "important linux
commands" lists were too lazy to provide that info.
-- 
user <candycane> is generated from /dev/urandom

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#71363

On Sat, 16 Aug 2025 00:20:08 -0000 (UTC), candycanearter07 wrote:

> To be fair, "find" can be a bit of a rabbithole to learn. I personally
> only know the basics of -name, -iname, and -type.

There are many things that are like the trails rabbits make in the grass. 
After pioneering my trails I stick with them because they do what I want 
and don't go exploring. 

I've used Vim for years, have the Vim book, and know I use about 1% of its 
capabilities. If I stray from my trails, like trying to show line numbers, 
I have to look it up. I know I can do a horizontal split but I only do 
vertical splits so I'd have to look that up too.

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#71402

On 2025-08-16, rbowman <bowman@montana.com> wrote:

> I've used Vim for years, have the Vim book, and know I use about 1% of its 
> capabilities. If I stray from my trails, like trying to show line numbers, 
> I have to look it up. I know I can do a horizontal split but I only do 
> vertical splits so I'd have to look that up too.

Occasionally I'll find I have enough use for something to take the
time to learn it.  My most recent one with vim is /\<foo\>, which
finds "foo" only if it's an entire word (like grep's -w option).

-- 
/~\  Charlie Gibbs                  |  Growth for the sake of
\ /  <cgibbs@kltpzyxm.invalid>      |  growth is the ideology
 X   I'm really at ac.dekanfrus     |  of the cancer cell.
/ \  if you read it the right way.  |    -- Edward Abbey

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#71425

On Sat, 16 Aug 2025 17:04:33 GMT, Charlie Gibbs wrote:

> On 2025-08-16, rbowman <bowman@montana.com> wrote:
>
>> I've used Vim for years, have the Vim book, and know I use about 1%
>> of its capabilities. If I stray from my trails, like trying to show
>> line numbers, I have to look it up. I know I can do a horizontal
>> split but I only do vertical splits so I'd have to look that up
>> too.
>
> Occasionally I'll find I have enough use for something to take the
> time to learn it. My most recent one with vim is /\<foo\>, which
> finds "foo" only if it's an entire word (like grep's -w option).

Vim is to text editors what PHP is to programming languages.

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#71470

On Sun, 17 Aug 2025 00:45:31 -0000 (UTC), Lawrence D’Oliveiro wrote:

> On Sat, 16 Aug 2025 17:04:33 GMT, Charlie Gibbs wrote:
> 
>> On 2025-08-16, rbowman <bowman@montana.com> wrote:
>>
>>> I've used Vim for years, have the Vim book, and know I use about 1%
>>> of its capabilities. If I stray from my trails, like trying to show
>>> line numbers, I have to look it up. I know I can do a horizontal split
>>> but I only do vertical splits so I'd have to look that up too.
>>
>> Occasionally I'll find I have enough use for something to take the time
>> to learn it. My most recent one with vim is /\<foo\>, which finds "foo"
>> only if it's an entire word (like grep's -w option).
> 
> Vim is to text editors what PHP is to programming languages.

I likle Vim. I do not like Personal Home Page. That should have stayed 
with Aunt Bea hacking together her website.

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#71469

On Sat, 16 Aug 2025 17:04:33 GMT, Charlie Gibbs wrote:

> On 2025-08-16, rbowman <bowman@montana.com> wrote:
> 
>> I've used Vim for years, have the Vim book, and know I use about 1% of
>> its capabilities. If I stray from my trails, like trying to show line
>> numbers,
>> I have to look it up. I know I can do a horizontal split but I only do
>> vertical splits so I'd have to look that up too.
> 
> Occasionally I'll find I have enough use for something to take the time
> to learn it.  My most recent one with vim is /\<foo\>, which finds "foo"
> only if it's an entire word (like grep's -w option).

I've used that for a long time. It's an easy one to remember.  <Shift>* on 
a word searches for the word. If you look at the bottom you'll see 
/\<printf\> if that's what the * search was. That only seems to work if 
there is more than one.

                else if (strcmp(el, "ele") == 0) {

If I search on \<ele\> it finds it. Using * says 'search hit BOTTOM, 
continuing at TOP '  In any case it doesn't find last_elevation, ele_text, 
elevation, min_elevation and so forth that /ele does.  

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#71641

On 2025-08-16 02:20, candycanearter07 wrote:
> Lawrence D'Oliveiro <ldo@nz.invalid> wrote at 22:45 this Thursday (GMT):
>> On Thu, 14 Aug 2025 14:50:06 +0300, Anssi Saari wrote:
>>
>>> Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>>>
>>>> What’s an obvious omission from his list? To me, it’s the “find”
>>>> command.
>>>
>>> Possibly or something like it. I just started looking into rawhide which
>>> is another search tool. My interest is rawhide's ability to search for
>>> tags in extended attributes. I've started adding tags to videos and
>>> photos so I can search for those with rawhide.
>>
>> The “find” command has the ability to execute external commands. Those can
>> produce output on their own, and/or their success/failure exit status can
>> be used as a filter on matching files.
> 
> 
> To be fair, "find" can be a bit of a rabbithole to learn. I personally
> only know the basics of -name, -iname, and -type.

I have forgotten how to use find, I use it so few times. So instead of 
learning again, when I need to use it, I use chatgpt to concoct the line 
for me :-P

The other day I wanted to search a machine to find files created between 
certain dates:

Laicolasse:~ # time find / -type d -newermt "2025-07-28" \
   ! -newermt "2025-07-31" 2>/dev/null | tee busqueda
^C

real	26m14.066s
user	0m3.725s
sys	1m5.634s
Laicolasse:~ #

Took way too long for a laptop with M2 disk. It was faster on other 
machines.

Turned out that an automount was happening of an external nfs mount on 
"/mnt/nfs/Isengard/xfsRaid/", and that raid is big and slow, the search 
took for ever.

I did not want to do a refresher course on "find" again.

With the aid of chatgpt I came with:

# find / \( -path /mnt/nfs/Isengard/xfsRaid/ \) -prune \
      -o -type d -newermt "2025-07-28" ! -newermt "2025-07-31" \
       2>/dev/null | tee busqueda

But did not work, the directory was mounted again and scanned. I then 
deleted the automount line from fstab:

#Isengard.valinor:/data/xfsRaid/   /mnt/nfs/Isengard/xfsRaid  \
     nfs4    noauto,nofail,x-systemd.automount,\
     x-systemd.idle-timeout=300,_netdev,user,users,lazytime 0 0


But did not work because systemd has a memory (automatic mount units) 
and still automounted the directory.

So what did I do?

Stop the network!

Brute force approach.


In retrospect, I should have used:

Laicolasse:~ # time find / \( -path /mnt/nfs/Isengard/ \) \
    -prune -o -type d -newermt "2025-07-28" ! -newermt \
    "2025-07-31" 2>/dev/null | tee busqueda
...

real	0m3.035s
user	0m0.836s
sys	0m2.180s
Laicolasse:~ #




-- 
Cheers, Carlos.

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#71695

On Tue, 19 Aug 2025 12:28:49 +0200, Carlos E.R. wrote:

> Laicolasse:~ # time find / -type d -newermt "2025-07-28" \
>    ! -newermt "2025-07-31" 2>/dev/null | tee busqueda

I never knew about -newermt. Why? Because it’s not listed in the man page, 
though it is documented in the info file.

Nope. Scratch that. It *is* documented in the man page, in the form of “-
newerXY” with explanations of what “X” and “Y” can be.

> Turned out that an automount was happening of an external nfs mount on
> "/mnt/nfs/Isengard/xfsRaid/", and that raid is big and slow, the search
> took for ever.

Wouldn’t “-xdev” (“don’t descend directories on other filesystems”) have 
fixed that?

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#71744

On 2025-08-20 02:59, Lawrence D’Oliveiro wrote:
> On Tue, 19 Aug 2025 12:28:49 +0200, Carlos E.R. wrote:
> 
>> Laicolasse:~ # time find / -type d -newermt "2025-07-28" \
>>     ! -newermt "2025-07-31" 2>/dev/null | tee busqueda
> 
> I never knew about -newermt. Why? Because it’s not listed in the man page,
> though it is documented in the info file.
> 
> Nope. Scratch that. It *is* documented in the man page, in the form of “-
> newerXY” with explanations of what “X” and “Y” can be.
> 
>> Turned out that an automount was happening of an external nfs mount on
>> "/mnt/nfs/Isengard/xfsRaid/", and that raid is big and slow, the search
>> took for ever.
> 
> Wouldn’t “-xdev” (“don’t descend directories on other filesystems”) have
> fixed that?

But I need to scan both root and home, which are separate filesystems.

I just saw:

   -xautofs
               Don't descend directories on autofs filesystems.


which I have tested now and works! I feared it might work with the 
classic automount but not with systemd. It does work. Nice!

-- 
Cheers, Carlos.

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#71796

On Wed, 20 Aug 2025 12:32:16 +0200, Carlos E.R. wrote:

> On 2025-08-20 02:59, Lawrence D’Oliveiro wrote:
>
>> Wouldn’t “-xdev” (“don’t descend directories on other filesystems”)
>> have fixed that?
> 
> But I need to scan both root and home, which are separate filesystems.

I was going to say, explicitly list both / and /home (and whatever else) 
as directories to search in, with -xdev to avoid entering any other mount 
points, but ...

> I just saw:
> 
>    -xautofs
>                Don't descend directories on autofs filesystems.
> 
> 
> which I have tested now and works! I feared it might work with the
> classic automount but not with systemd. It does work. Nice!

... that is probably simpler. ;)

However, it’s not present on my “find” version (findutils 4.10.0-3, part 
of Debian Unstable as of last month).

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#71804

On 2025-08-21 00:21, Lawrence D’Oliveiro wrote:
> On Wed, 20 Aug 2025 12:32:16 +0200, Carlos E.R. wrote:
> 
>> On 2025-08-20 02:59, Lawrence D’Oliveiro wrote:
>>
>>> Wouldn’t “-xdev” (“don’t descend directories on other filesystems”)
>>> have fixed that?
>>
>> But I need to scan both root and home, which are separate filesystems.
> 
> I was going to say, explicitly list both / and /home (and whatever else)
> as directories to search in, with -xdev to avoid entering any other mount
> points, but ...
> 
>> I just saw:
>>
>>     -xautofs
>>                 Don't descend directories on autofs filesystems.
>>
>>
>> which I have tested now and works! I feared it might work with the
>> classic automount but not with systemd. It does work. Nice!
> 
> ... that is probably simpler. ;)
> 
> However, it’s not present on my “find” version (findutils 4.10.0-3, part
> of Debian Unstable as of last month).

Wow. And I'm using openSUSE Leap 15.6, which has ancient versions of 
almost everything.

Telcontar:~ # rpm -q findutils
findutils-4.8.0-150300.3.3.2.x86_64

Weird.

-- 
Cheers, Carlos.

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#71805

On Thu, 21 Aug 2025 02:29:57 +0200, Carlos E.R. wrote:

> On 2025-08-21 00:21, Lawrence D’Oliveiro wrote:
>>
>> However, it’s not present on my “find” version (findutils 4.10.0-3,
>> part of Debian Unstable as of last month).
>
> Wow. And I'm using openSUSE Leap 15.6, which has ancient versions of
> almost everything.
>
> Telcontar:~ # rpm -q findutils
> findutils-4.8.0-150300.3.3.2.x86_64
>
> Weird.

The patch is actually older than that, dating from 2009
<http://fedora.riscv.rocks:3000/rpms/findutils/commit/29ef88d6c3ded9300b7c0c1b1a29321b287cab7a?style=unified&whitespace=ignore-all&show-outdated=>.
But it looks like it was never upstreamed into the GNU version
<https://www.gnu.org/software/findutils/manual/html_mono/find.html>.

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#71844

On 2025-08-21 03:29, Lawrence D’Oliveiro wrote:
> On Thu, 21 Aug 2025 02:29:57 +0200, Carlos E.R. wrote:
> 
>> On 2025-08-21 00:21, Lawrence D’Oliveiro wrote:
>>>
>>> However, it’s not present on my “find” version (findutils 4.10.0-3,
>>> part of Debian Unstable as of last month).
>>
>> Wow. And I'm using openSUSE Leap 15.6, which has ancient versions of
>> almost everything.
>>
>> Telcontar:~ # rpm -q findutils
>> findutils-4.8.0-150300.3.3.2.x86_64
>>
>> Weird.
> 
> The patch is actually older than that, dating from 2009
> <http://fedora.riscv.rocks:3000/rpms/findutils/commit/29ef88d6c3ded9300b7c0c1b1a29321b287cab7a?style=unified&whitespace=ignore-all&show-outdated=>.
> But it looks like it was never upstreamed into the GNU version
> <https://www.gnu.org/software/findutils/manual/html_mono/find.html>.

So, little mystery solved :-)

-- 
Cheers, Carlos.

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#71115

On 13/08/2025 02:16, Lawrence D'Oliveiro wrote:
><https://www.zdnet.com/article/im-a-linux-expert-and-here-are-6-commands-i-cant-live-without/>
>
>What’s an obvious omission from his list? To me, it’s the “find”
>command. I have millions of files on my main machine (quite literally,
>I would say), and it is the most convenient and powerful way of
>finding something I might have worked on years ago, and mostly
>forgotten about since then.
>
>(Which is a lot of things.)

Things like sed, vim, awk and ex for me. 

-- 
--
A PICKER OF UNCONSIDERED TRIFLES

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