scp issue

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Old 08-19-2009
scp issue

after scp from a mac to a unix server and back a set of .wav files (originally generated by ppt with 'record narration') become corrupted somehow, and when opened the sound files has become noise. non-.wav files in the same folder are not affected.

strangely, the problem only seems to arise when the .wav files lack their extension. is there a reason that leaving out the extension can corrupt the files when using scp?

i need to back-up a database i want to know there is any way to avoid this problem short of adding .wav to all wav-files (which creates a different set of problem because ppt doesn't find them anymore).

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scp(1)								   User Commands							    scp(1)

scp - secure copy (remote file copy program) SYNOPSIS
scp [-pqrvBC46] [-F ssh_config] [-S program] [-P port] [-c cipher] [-i identity_file] [-o ssh_option] [ [user@]host1:]file1 []... [ [user@]host2:]file2 DESCRIPTION
The scp utility copies files between hosts on a network. It uses ssh(1) for data transfer, and uses the same authentication and provides the same security as ssh(1). Unlike rcp(1), scp will ask for passwords or passphrases if they are needed for authentication. Any file name may contain a host and user specification to indicate that the file is to be copied to/from that host. Copies between two remote hosts are permitted. OPTIONS
The following options are supported: -4 Forces scp to use IPv4 addresses only. -6 Forces scp to use IPv6 addresses only. -B Selects batch mode. (Prevents asking for passwords or passphrases.) -c cipher Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1). -C Compression enable. Passes the -C flag to ssh(1) to enable compression. -F ssh_config Specifies an alternative per-user configuration file for ssh(1.). -i identity_file Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1). -o ssh_option The given option is directly passed to ssh(1). -p Preserves modification times, access times, and modes from the original file. -P port Specifies the port to connect to on the remote host. Notice that this option is written with a capital `P', because -p is already reserved for preserving the times and modes of the file in rcp(1). -q Disables the progress meter. -r Recursively copies entire directories. -S program Specifies the name of the program to use for the encrypted connection. The program must understand ssh(1) options. -v Verbose mode. Causes scp and ssh(1) to print debugging messages about their progress. This is helpful in debugging con- nection, authentication, and configuration problems. OPERANDS
The following operands are supported: host1, host2,... The name(s) of the host from or to which the file is to be copied. file1, file2,... The file(s) to be copied. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
rcp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), sshd(1M), ssh_config(4), attributes(5) NOTES
Generally, use of scp with password or keyboard-interactive authentication method and two remote hosts does not work. It does work with either the pubkey, hostbased or gssapi-keyex authentication method. For the pubkey authentication method, either private keys not pro- tected by a passphrase, or an explicit ssh agent forwarding have to be used. The gssapi-keyex authentication method works with the ker- beros_v5 GSS-API mechanism, but only if the GSSAPIDelegateCredentials option is enabled. SunOS 5.11 22 Jun 2007 scp(1)