On 11/18/08 18:44, mike wrote:
Ron Johnson wrote:I use od -c which puts ASCII chars and backslashes the rest. makes it easier to spot the funny chars.On 11/18/08 05:50, mike wrote:Girish Kulkarni wrote:In my work I collect a lot of data from the serial port, spit out by other machines. od is VERY useful when I collect data from a new machine. Are there carriage returns? Are there other strange characters?.... After those questions are answered it's much easier to parse the data and do stuff with it.Hello, I was trying to understand octal dumps today that can be obtained using od. But two questions cropped up: 1. When would an octal dump be useful? Surely not in perusing text files?! And when people say they use octal (or hex) dump to check and edit binary files, how do they learn to do so? 2. I understand that od shows the file offsets in decimal if I say 'od -Ad'. But I find that the offset of the last line does not match with the size of the file given by 'du -h'. Why is that? I really am puzzled after bumping into this command by chance. Any comments would help.But do you do a pure od, or an "od -tx"?
IOW, you're not using od to dump octal... -- Ron Johnson, Jr. Jefferson LA USA If you don't agree with me, you are worse than Hitler!!!