Change file name from upper to lower case
for file in `ls -1|perl -ne 'print "$_" if (/[A-Z]/);'` do mv ${file} `echo ${file}|perl -ne 'chomp;print "$_" if (tr/A-Z/a-z/);'`; done
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for file in `ls -1|perl -ne 'print "$_" if (/[A-Z]/);'` do mv ${file} `echo ${file}|perl -ne 'chomp;print "$_" if (tr/A-Z/a-z/);'`; done