UNIX for Beginners Questions & Answers

No idea what can be the cause, but with large files it doesn't remove all the trailing null characters.

A file of 3239571456 bytes resulted in 2902450247 with dtn.c
The same file resulted in 3239570892 bytes using sed on ubuntu 64 bits.
The same file resulted in 3239457516 bytes using sed on cygwin 32 bits.

I've compared the original file with the created with dtn.c using HexCmp and the result is the wanted, while using sed is not.
This doesn't work. This damages completely the file.

Yes, it does:

Code:

hd XX
00000000  64 6c 6b 6a 65 72 67 00  00 00 00 00 00 00 00 00  |dlkjerg.........|
sed 's/\x00*$//' XX | hd
00000000  64 6c 6b 6a 65 72 67                              |dlkjerg|

Code:

sed --version
sed (GNU sed) 4.2.2
Copyright (C) 2012 Free Software Foundation, Inc.

Does "trailing" mean "at the end-of-file" or "at the end-of-each-line"?

At the end of a binary file