LPRng Reference Manual: 5 Sep 2003 (For LPRng-3.8.22) | ||
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Options used:
check_for_nonprintable FLAG lpr checks for non-printable file
ml=minimum number of printable characters
By default lpr does not check files for for non-printable characters (i.e., escape characters) at the start of the print file. You can set the check_for_nonprintable flag to cause it to do so. The :ml value specifies the number of characters that are to be checked. Clearly, if it is 0, none will be checked.