On 6/29/2013 12:19 PM, Tixy wrote: > On Sat, 2013-06-29 at 12:34 -0400, Stephen Powell wrote: >> I have a need to pad a binary file with some character >> (probably a null character) so that its total length >> is a multiple of some number. For example, I have a file >> called kernel.debian, whose size is 6319616 bytes. I need >> to pad it with nulls until its length is a multiple of 80. >> The next higher multiple of 80 is 6319680, which can be >> obtained by padding the file with 64 null characters. >> In CMS, the FBLOCK CMS Pipelines stage will do the trick. >> For example, >> >> PIPE < KERNEL DEBIAN A1 | FBLOCK 80 00 | > KERNEL1 DEBIAN A1 F >> >> This will create an output file with fixed-length 80-byte >> records, padded as necessary at the end with null characters, >> so that all records are exactly 80 bytes long. >> >> I am looking for a way to do this padding in Linux. >> A search of the internet using the keywords "pad file Linux" >> did not seem to produce any useful results. Does anyone know >> how to accomplish this? > > > truncate -s %80 FILENAME > > Will pad with zero's to round size up to a multiple of 80.
That'll teach me to read all posts before replying. Question: Does this append ASCII zeros to the end of the file, or nulls? Stephen asked for nulls, and you state "zero's" above. -- Stan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51cf2637.1050...@hardwarefreak.com
