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Operating Systems Linux Red Hat Special control characters in file Post 302916007 by jim mcnamara on Friday 5th of September 2014 04:56:24 PM
Old 09-05-2014
Is this really corruption or is it due to the file having been written using the wrong language settings or UTF settings?

A lot of Linux systems have the iconv command to convert from one NLS setting to another.

Usually "corruption" via ftp or sftp transfer is a seldom thing. Can you get a checksum of a corrupted file, then a checksum on the remote source file to verify that transfer did not corrupt.

If you want a script it would be a one-time deal, because corruption due to file transfers does not cause the same screw-ups in the data time after time. Because of that, scripting is not a great solution. If you have enough virtual memory, the Linux vim editor or an editor on a Windows desktop like Ultraedit is a better choice.

If you are getting the same kind of corruption it is very likely the garbage you see was already in the file before you got it, because of a programming error in the code that created the file, like buffer overflow. Consider fixing the root cause.

And. Yeah, I know -- the people on the creation side of things will fight the idea. But that is politics not computing.

Last edited by jim mcnamara; 09-05-2014 at 06:03 PM..
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XFERLOG(5)							File Formats Manual							XFERLOG(5)

NAME
xferlog - ProFTPD server logfile DESCRIPTION
The xferlog file contains logging information from the FTP server daemon, proftpd(8). This file usually is found in /var/log but can be located anywhere by using a proftpd(8) configuration directive. Each server entry is composed of a single line of the following form, with all fields being separated by spaces. current-time transfer-time remote-host file-size filename transfer-type special-action-flag direction access-mode username service-name authentication-method authenticated-user-id completion-status current-time is the current local time in the form "DDD MMM dd hh:mm:ss YYYY". Where DDD is the day of the week, MMM is the month, dd is the day of the month, hh is the hour, mm is the minutes, ss is the seconds, and YYYY is the year. transfer-time is the total time in seconds for the transfer. remote-host is the remote host name. file-size is the size of the transferred file in bytes. filename is the name of the transferred file. If the filename contains any spaces or control characters, each such character is replaced by an underscore ('_') character. transfer-type is a single character indicating the type of transfer. Can be one of: a for an ascii transfer b for a binary transfer special-action-flag is one or more single character flags indicating any special action taken. Can be one or more of: C file was compressed U file was uncompressed T file was tar'ed _ no action was taken direction is the direction of the transfer. Can be one of: o outgoing i incoming d deleted access-mode is the method by which the user is logged in. Can be one of: a (anonymous) is for an anonymous guest user. r (real) is for a local authenticated user. username is the local username, or if guest, the ID string given. service-name is the name of the service being invoked, usually FTP. authentication-method is the method of authentication used. Can be one of: 0 none 1 RFC931 Authentication authenticated-user-id is the user id returned by the authentication method. A * is used if an authenticated user id is not available. completion-status is a single character indicating the status of the transfer. Can be one of: c complete transfer i incomplete transfer FILES
/var/log/xferlog AUTHORS
ProFTPD is written and maintained by a number of people, full credits can be found on http://www.proftpd.org/credits.html SEE ALSO
proftpd(8) Full documentation on ProFTPD, including configuration and FAQs, is available at http://www.proftpd.org/ For help/support, try the ProFTPD mailing lists, detailed on http://www.proftpd.org/lists.html Report bugs at http://bugs.proftpd.org/ XFERLOG(5)
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