Method 1
# ls -lrt | sed -n ‘/Sep 30/p’ | awk ‘{print $9}’ > sg1.tmp
# rm -rf `cat sg1.tmp`
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Method 2
# ls -lrt | sed -n ‘/Sep 30/p’ | awk ‘{print $9}’ | xargs rm
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Method 3:
(In current directory)
# find . -name ‘spam-*’ | xargs rm
or
# find . -name ‘*’ | xargs rm