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perl + sed + remove lines that start with "#"

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linux-howto

http://serverfault.com – please advice I have linux and solaris machines, and I need command that work on both OS I use the following perl line in order to remove all lines that start with "#" why perl command not work , remark - need to support also lines that start with space or TAB and then "#" perl -i -pe 'next if /^ *#/' file . more file # aa a # bbb #xxx (HowTos)