Shell Programming and Scripting

find . -type f \( -iname "*.xml" \) -printf '%T@ %p\n' | sort -rg | sed -r 's/[^ ]* //' | awk 'BEGIN{FS="_"}{if (++dup[$1] >= 2) print}'`;

#!/bin/bash
for i in `ls -t *xml|awk 'BEGIN{FS="_"}{if (++dup[$1] >= 2) print}'`;
do
rm $i 
done

AECZ00205_010917_1506689024063.xml
AECZ00205_010917_1506689024064.xml
AECZ00205_010917_1506689024066.xml [Latest]
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#!/bin/bash
ls -t | awk -F_ '/xml$/ && ++dup[$1] >= 2' | while IFS= read -r i
do
	echo rm $i 
done

#!/bin/bash
ls -t | awk -F_ '/xml$/{if($1 in dup) print; else dup[$1]}' | while IFS= read -r i
do
	echo rm $i 
done

find . -type f \( -iname "*.xml" \) -printf '%T@ %p\n' | sort -rg | sed -r 's/[^ ]* //' | awk '{w=$0; sub(".*/", "", w); sub("_[0-9_][0-9_]*.*", "", w);} !a[w]++'

find . -type f \( -iname "*.xml" \) -printf '%T@ %p\n' |
   sort -rg |
   sed -r 's/[^ ]* //' |
   awk '{w=$0; sub(".*/", "", w); sub("_[0-9_][0-9_]*.*", "", w);} a[w]++' | while read f
   do
      echo "rm -f $f" 
   done > rm_file

sh rm_file