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Find command - result order

 
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# 1  
Old 01-20-2011
Find command - result order
Hi!

Could you please explain why the result order isn't in reverse time order as it is requestet by "xargs ls -ltr" command (ksh shell)? There are about 5000 files in dir.

Code:
$ find . -name "*201010*" -print |xargs ls -ltr |tail
-rw-r--r--   1 oracle     oinstall     54326 Nov 25 20:32 ./NP20101035623_W.log
-rw-r--r--   1 oracle     oinstall   1216870 Nov 29 09:50 ./201010308_W_OK.IS
-rw-r--r--   1 oracle     oinstall         2 Nov 29 10:03 ./201010392708_W.dsc
-rw-r--r--   1 oracle     oinstall     54428 Nov 29 10:03 ./201010312708_W.log
-rw-r--r--   1 oracle     oinstall       171 Dec  7 13:20 ./20101031_130937_W_OK.IS
-rw-r--r--   1 oracle     oinstall     54312 Dec  7 13:33 ./20101031_W.log
-rw-r--r--   1 oracle     oinstall       257 Jan 12 12:20 ./20101031W_OK.IS
-rw-r--r--   1 oracle     oinstall     54309 Jan 12 12:34 ./20101031W.log
-rw-r--r--   1 oracle     oinstall    215752 Oct  7 11:50 ./07102010__W_OK.IS.gz
-rw-r--r--   1 oracle     oinstall        71 Oct  7 18:05 ./20100930_W.dsc.gz




Thank you very much!
Last edited by radoulov; 01-20-2011 at 12:54 PM.. Reason: Code tags, please!
# 2  
Old 01-20-2011
Because xargs processes n (not all) files at a time.
To get the desired result you need to sort the list after the entire resultset is available.
I suppose that something like this might work (untested):

Code:
perl -e'
  print join $/, sort { 
    -M $b <=> -M $a 
    } split $/, qx/find . -name "*201010*"/
    '

Last edited by radoulov; 01-20-2011 at 01:04 PM.. Reason: Corrected.
# 3  
Old 01-20-2011
I can't explain how the last two files appear in your sample because the file names do not contain the string "201010" (unless there are bad characters in the file name?).

Anyway, here is one way of preserving the order.

Code:
ls -1tr|grep "201010"|while read filename
do
  if [ -f "${filename}" ]
  then 
      ls -lad "${filename}"
  fi
done


Afterthought:
If (horror of horrors) you have a file called "*" or perhaps containing "*" I can explain the anomoly.
Last edited by methyl; 01-20-2011 at 05:38 PM.. Reason: typos & afterthought
 
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