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Thread: How to delete initial N bytes from the starting of the file using sed?
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Old 11-19-2007
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Perderabo Perderabo is offline Forum Staff  
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sed 's/^\(.\)\{11\}//g' forsed
will delete the first 11 characters from each line

sed '1s/^\(.\)\{11\}//g' forsed
will delete the first 11 characters from the first line but the first line must contain 11 or more characters

Ignoring line boundaries will be hard using sed. To ignore line boundaries and simply delete the first n characters you might want to consider switching to dd.