Filtered Deletion

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