[gentoo-user] date-specific cp/mv

[gentoo-user] date-specific cp/mv

[maxim wexler]

Hi group,

I'd like to be able to cp or mv certain files from a
dir according to their timestamp.

man cp mentions the '--preserve' option but I don't
think that's what I need.

Does somebody know of some sort of script or perl or
python pass that'll do it?

-Maxim

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Re: [gentoo-user] date-specific cp/mv

[darren kirby]

quoth the maxim wexler:
> Hi group,
>
> I'd like to be able to cp or mv certain files from a
> dir according to their timestamp.

Have a look at find. You can whip up a one-liner using the -atime, -mtime  
or -ctime tests (depending on your intent) and use -exec to do the cp or 
mv...

> -Maxim

-d
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Re: [gentoo-user] date-specific cp/mv

[Dave V]

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I used to use this for moving old mail to an archive folder. Just change the directories, and you should be golden.
alias archive='find ~/.maildir/inbox/cur -mtime +30 -exec mv {} ~/.maildir/inbox/archive/cur/. \;'

Dave

On Thu, 28 Sep 2006 09:24:25 -0700
darren kirby <bulliver@badcomputer.org> wrote:

> quoth the maxim wexler:
> > Hi group,
> >
> > I'd like to be able to cp or mv certain files from a
> > dir according to their timestamp.
> 
> Have a look at find. You can whip up a one-liner using the -atime, -mtime  
> or -ctime tests (depending on your intent) and use -exec to do the cp or 
> mv...
> 
> > -Maxim
> 
> -d
> -- 
> darren kirby :: Part of the problem since 1976 :: http://badcomputer.org
> "...the number of UNIX installations has grown to 10, with more expected..."
> - Dennis Ritchie and Ken Thompson, June 1972
> -- 
> gentoo-user@gentoo.org mailing list
> 


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Re: [gentoo-user] date-specific cp/mv

[Trey Gruel]

On 9/28/06, maxim wexler <blissfix@yahoo.com> wrote:
> I'd like to be able to cp or mv certain files from a
> dir according to their timestamp.
>
> man cp mentions the '--preserve' option but I don't
> think that's what I need.
>
> Does somebody know of some sort of script or perl or
> python pass that'll do it?

something akin to:

find <srcdir> -type f -mmin 5 -exec cp {} <destdir> \;

will copy all files in srcdir that have been modified within 5 minutes
to destdir.  check the find man page for other ways of checking the
files or restricting how far find will recurse, etc..

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Re: [gentoo-user] date-specific cp/mv

[Alan McKinnon]

On Thursday 28 September 2006 18:16, maxim wexler wrote:
> Hi group,
>
> I'd like to be able to cp or mv certain files from a
> dir according to their timestamp.
>
> man cp mentions the '--preserve' option but I don't
> think that's what I need.
>
> Does somebody know of some sort of script or perl or
> python pass that'll do it?

use find with the time-related options and -exec. To move 
everything in ~/mystuff that's older than 3 days (72 hours) to 
~/backup, you could use

find ~/mystuff -type f -mtime 72 -exec mv {} ~/backup \;

find has many options related to searching by time (hours, 
minutes, etc) and you can select by atime, ctime or mtime. It's 
all in the man page

alan
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Re: [gentoo-user] date-specific cp/mv

[maxim wexler]

> find has many options related to searching by time
> (hours, 
> minutes, etc) and you can select by atime, ctime or
> mtime. It's 
> all in the man page

I can't get it to work. I used -ctime, -mtime, -mmin.
The files were created on the 26th of this month using
abcde. All the other files in the dir are at least two
weeks old, so I gave it 72(hours) then 3(days) to grab
everything in the last three days then 96 and 4 just
to make sure. I gave it mmin with 4810(72*60 minutes)
and 5760(90*60). Every time nothing happens; nothing
is copied and no error message is generated. I gave it
relative dirs and absolute dirs. I used -type f and
-fstype <file-type>. Nothing. 

-mw



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Re: [gentoo-user] date-specific cp/mv

[Daniel Iliev]

maxim wexler wrote:
>> find has many options related to searching by time
>> (hours, 
>> minutes, etc) and you can select by atime, ctime or
>> mtime. It's 
>> all in the man page
>>     
>
> I can't get it to work. I used -ctime, -mtime, -mmin.
> The files were created on the 26th of this month using
> abcde. All the other files in the dir are at least two
> weeks old, so I gave it 72(hours) then 3(days) to grab
> everything in the last three days then 96 and 4 just
> to make sure. I gave it mmin with 4810(72*60 minutes)
> and 5760(90*60). Every time nothing happens; nothing
> is copied and no error message is generated. I gave it
> relative dirs and absolute dirs. I used -type f and
> -fstype <file-type>. Nothing. 
>
> -mw
>
>
>
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>   
I believe the right syntax is:

find /path/dir -type f -ctime -3

This should mean "show all files created for the last 3 days".

Use  "-3" not "3"

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Re: [gentoo-user] date-specific cp/mv RESOLVED

[maxim wexler]

> I believe the right syntax is:
> 
> find /path/dir -type f -ctime -3
> 
> This should mean "show all files created for the
> last 3 days".
> 
> Use  "-3" not "3"
> 

That's it :)

-Maxim

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[gentoo-user] Re: date-specific cp/mv

[Alexander Skwar]

· maxim wexler <blissfix@yahoo.com>:

> I can't get it to work. I used -ctime, -mtime, -mmin.

How did you use it?

Alexander Skwar
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Re: [gentoo-user] Re: date-specific cp/mv

[maxim wexler]

> 
> How did you use it?

$find ~/<music> (-type f, -fstype mp3) (-mtime, -mmin,
-ctime) (72, 3, 4810, whatever) -exec cp {}
~/<music-bkp> \;

And it never said "bad option" or "file not found".

-Maxim

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[gentoo-user] Re: Re: date-specific cp/mv

[Alexander Skwar]

· maxim wexler <blissfix@yahoo.com>:

>> How did you use it?
> 
> $find ~/<music> (-type f, -fstype mp3) (-mtime, -mmin,
> -ctime) (72, 3, 4810, whatever) -exec cp {}
> ~/<music-bkp> \;

Well, actually, I don't wonder that *this* command did not
work. That's not at all even *close* to legal syntax.



Alexander Skwar
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Re: [gentoo-user] Re: Re: date-specific cp/mv

[Daniel Iliev]

Alexander Skwar wrote:
> · maxim wexler <blissfix@yahoo.com>:
>
>   
>>> How did you use it?
>>>       
>> $find ~/<music> (-type f, -fstype mp3) (-mtime, -mmin,
>> -ctime) (72, 3, 4810, whatever) -exec cp {}
>> ~/<music-bkp> \;
>>     
>
> Well, actually, I don't wonder that *this* command did not
> work. That's not at all even *close* to legal syntax.
>
>
>
> Alexander Skwar
>   
Well, I think that by the parenthesis Mr. Wexler  wanted to show he had
tried all the variations, not that it is the exact command. I was also
very pissed off when I had to discover that the "find manual page" isn't
very correct. It never made clear that "-ctime 3" means "now plus 3
days" and "-ctime -3" means "now minus 3 days".

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Re: [gentoo-user] Re: Re: date-specific cp/mv

[Richard Fish]

On 9/29/06, Daniel Iliev <danny@ilievnet.com> wrote:
> tried all the variations, not that it is the exact command. I was also
> very pissed off when I had to discover that the "find manual page" isn't
> very correct. It never made clear that "-ctime 3" means "now plus 3
> days" and "-ctime -3" means "now minus 3 days".

Well the man page does have this paragraph in it (emphasis added):

       If you are using find in an environment  where  security  is  important
       (for example if you are using it to seach directories that are writable
       by other users), you should read the "Security Considerations"  chapter
       of the findutils documentation, which is called Finding Files and comes
       with findutils.   **That document also includes a  lot  more  detail  and
       discussion  than  this  manual  page,  so you may find it a more useful
       source of information.**

So you can get better documentation from the info pages by running
"info find.info".  If you want specifics on the time options:

# info find.info "Finding Files" "Time"

BTW, in programmer speak, "now plus 3 days" would be interpreted as 3
days in the future...which is _not_ how find works.  To try and
clarify:

-mtime 2  -> files modified between 48 and 72 hours ago.
-mtime -2 -> files modified in the last 2 days...the period between 0
and 48 hours ago.
-mtime +2 -> files modified more than 48 hours ago

HTH,
-Richard
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Re: [gentoo-user] Re: Re: date-specific cp/mv

[Daniel Iliev]

Richard Fish wrote:
> On 9/29/06, Daniel Iliev <danny@ilievnet.com> wrote:
>> tried all the variations, not that it is the exact command. I was also
>> very pissed off when I had to discover that the "find manual page" isn't
>> very correct. It never made clear that "-ctime 3" means "now plus 3
>> days" and "-ctime -3" means "now minus 3 days".
>
> Well the man page does have this paragraph in it (emphasis added):
>
>       If you are using find in an environment  where  security  is 
> important
>       (for example if you are using it to seach directories that are
> writable
>       by other users), you should read the "Security Considerations" 
> chapter
>       of the findutils documentation, which is called Finding Files
> and comes
>       with findutils.   **That document also includes a  lot  more 
> detail  and
>       discussion  than  this  manual  page,  so you may find it a more
> useful
>       source of information.**
>
> So you can get better documentation from the info pages by running
> "info find.info".  If you want specifics on the time options:
>
> # info find.info "Finding Files" "Time"
>
> BTW, in programmer speak, "now plus 3 days" would be interpreted as 3
> days in the future...which is _not_ how find works.  To try and
> clarify:
>
> -mtime 2  -> files modified between 48 and 72 hours ago.
> -mtime -2 -> files modified in the last 2 days...the period between 0
> and 48 hours ago.
> -mtime +2 -> files modified more than 48 hours ago
>
> HTH,
> -Richard

Point taken! Thanks for the clarification, Richard!


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Re: [gentoo-user] Re: Re: date-specific cp/mv

[Richard Fish]

On 9/29/06, Daniel Iliev <danny@ilievnet.com> wrote:
> Richard Fish wrote:
> > -mtime -2 -> files modified in the last 2 days...the period between 0
> > and 48 hours ago.
>
> Point taken! Thanks for the clarification, Richard!

And just to show that this is really hard to describe correctly...I
screwed this one up.  It should be:

-mtime -2 -> files modified since 2 days ago...the period between 48
hours ago and any point in the future.

;-)

-Richard
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[gentoo-user] Re: Re: Re: date-specific cp/mv

[Alexander Skwar]

· Daniel Iliev <danny@ilievnet.com>:
> Alexander Skwar wrote:
>> · maxim wexler <blissfix@yahoo.com>:

>>>> How did you use it?
>>>>       
>>> $find ~/<music> (-type f, -fstype mp3) (-mtime, -mmin,
>>> -ctime) (72, 3, 4810, whatever) -exec cp {}
>>> ~/<music-bkp> \;
>>>     
>>
>> Well, actually, I don't wonder that *this* command did not
>> work. That's not at all even *close* to legal syntax.

> Well, I think that by the parenthesis Mr. Wexler  wanted to show he had
> tried all the variations, not that it is the exact command.

Ah, I see. I was interested in the exact command, not something
which closely describes what he did.

> I was also 
> very pissed off when I had to discover that the "find manual page" isn't
> very correct. It never made clear that "-ctime 3" means "now plus 3
> days" and "-ctime -3" means "now minus 3 days".

Yeah, this also took me a very long time to get used to. Also
it took me quite some time to understand, that "+3" and "3" isn't
the same.

Alexander Skwar
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[gentoo-user] Re: date-specific cp/mv

[Alexander Skwar]

· maxim wexler <blissfix@yahoo.com>:

> I'd like to be able to cp or mv certain files from a
> dir according to their timestamp.

Use "find" and "xargs".

Alexander Skwar
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