Sort files by filename
Mikkel L. Ellertson
mikkel at infinity-ltd.com
Tue Jul 31 21:37:22 UTC 2007
Les Mikesell wrote:
> Mark Haney wrote:
>>> count=xx
>>> for i in $(ls <something>* | sort) ; do
> ^^^^^^^^^^^^
> The |sort isn't necessary since the shell always returns wild-card
> expansions in sorted order. In fact the ls isn't necessary either since
> the shell has already generated the list.
You are correct, it is not be necessary in the example - I put it in
as an option if you were not sorting on the entire file name, but on
a specific field. You have more options on how you sort by piping
the list though sort. In this case, the -k or -M options may be handy.
> for i in something*
> will do the same thing.
>
>>> file_num=$(cut --delimiter=_ -f1 $i)
>>> while [ $count -lt $file_num ] ; do
>>> echo Missing file number $count count++
>>> done
>>> done
>>>
>
>> This is great. I think now I have enough pieces to make something
>> work. I appreciate all the help.
>
> The above doesn't help if you lose the 1st or last bunch of files. Do
> you always get the same set every day?
>
It will catch if the first file is missing - the first entry will be
greater then count. If you know in advance how many files there
should be, you could add a test to see if the last file is
xx+number, as well as using that as an exit for the while loop.
As I had stated in the comments after the script, it was not
intended as a finished solution, but as a starting point for
building something that fit data better.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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