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Operating Systems AIX Transferring files from one AIX server to another AIX server in binary mode Post 302357847 by bakunin on Wednesday 30th of September 2009 08:12:35 PM
Old 09-30-2009
The commands in the ftp-client are "as" for ASCII mode and "bi" for binary mode (the default).

But if both your systems are AIX systems you don't need any ASCII mode at all:

Between different system architectures (like UNIX on one hand and Windows on the other and mainframe computers on a third) the way ASCII text files are stored is different: for instance in Windows a line is separated from its following line by a CR/LF (carriage return/linefeed, 0x0D 0x0A) character sequence. In UNIX it is only a newline character (^M). This has to be converted when files are being transferred from UNIX to Windows or vice versa. Exactly this conversion is what ASCII mode does, nothing more, nothing less. Binary mode is just switching off this conversion for binary data which do not need such a translation.

Of course such a translation is also not needed between two systems of the same architecture.

I hope this helps.

bakunin
 
Test Your Knowledge in Computers #519
Difficulty: Easy
3,201 = 0b110010000001
True or False?

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fconfigure(n)						       Tcl Built-In Commands						     fconfigure(n)

__________________________________________________________________________________________________________________________________________________

NAME
fconfigure - Set and get options on a channel SYNOPSIS
fconfigure channelId fconfigure channelId name fconfigure channelId name value ?name value ...? _________________________________________________________________ DESCRIPTION
The fconfigure command sets and retrieves options for channels. ChannelId identifies the channel for which to set or query an option and must refer to an open channel such as a Tcl standard channel (stdin, stdout, or stderr), the return value from an invocation of open or socket, or the result of a channel creation command provided by a Tcl extension. If no name or value arguments are supplied, the command returns a list containing alternating option names and values for the channel. If name is supplied but no value then the command returns the current value of the given option. If one or more pairs of name and value are supplied, the command sets each of the named options to the corresponding value; in this case the return value is an empty string. The options described below are supported for all channels. In addition, each channel type may add options that only it supports. See the manual entry for the command that creates each type of channels for the options that that specific type of channel supports. For example, see the manual entry for the socket command for its additional options. -blocking boolean The -blocking option determines whether I/O operations on the channel can cause the process to block indefinitely. The value of the option must be a proper boolean value. Channels are normally in blocking mode; if a channel is placed into nonblocking mode it will affect the operation of the gets, read, puts, flush, and close commands; see the documentation for those commands for details. For nonblocking mode to work correctly, the application must be using the Tcl event loop (e.g. by calling Tcl_DoOneEvent or invoking the vwait command). -buffering newValue If newValue is full then the I/O system will buffer output until its internal buffer is full or until the flush command is invoked. If newValue is line, then the I/O system will automatically flush output for the channel whenever a newline character is output. If newValue is none, the I/O system will flush automatically after every output operation. The default is for -buffering to be set to full except for channels that connect to terminal-like devices; for these channels the initial setting is line. Additionally, stdin and stdout are initially set to line, and stderr is set to none. -buffersize newSize Newvalue must be an integer; its value is used to set the size of buffers, in bytes, subsequently allocated for this channel to store input or output. Newvalue must be between ten and one million, allowing buffers of ten to one million bytes in size. -encoding name This option is used to specify the encoding of the channel, so that the data can be converted to and from Unicode for use in Tcl. For instance, in order for Tcl to read characters from a Japanese file in shiftjis and properly process and display the contents, the encoding would be set to shiftjis. Thereafter, when reading from the channel, the bytes in the Japanese file would be converted to Unicode as they are read. Writing is also supported - as Tcl strings are written to the channel they will automatically be con- verted to the specified encoding on output. If a file contains pure binary data (for instance, a JPEG image), the encoding for the channel should be configured to be binary. Tcl will then assign no interpretation to the data in the file and simply read or write raw bytes. The Tcl binary command can be used to manipulate this byte-oriented data. The default encoding for newly opened channels is the same platform- and locale-dependent system encoding used for interfacing with the operating system. -eofchar char -eofchar {inChar outChar} This option supports DOS file systems that use Control-z (x1a) as an end of file marker. If char is not an empty string, then this character signals end-of-file when it is encountered during input. For output, the end-of-file character is output when the channel is closed. If char is the empty string, then there is no special end of file character marker. For read-write channels, a two-ele- ment list specifies the end of file marker for input and output, respectively. As a convenience, when setting the end-of-file char- acter for a read-write channel you can specify a single value that will apply to both reading and writing. When querying the end- of-file character of a read-write channel, a two-element list will always be returned. The default value for -eofchar is the empty string in all cases except for files under Windows. In that case the -eofchar is Control-z (x1a) for reading and the empty string for writing. -translation mode -translation {inMode outMode} In Tcl scripts the end of a line is always represented using a single newline character ( ). However, in actual files and devices the end of a line may be represented differently on different platforms, or even for different devices on the same platform. For example, under UNIX newlines are used in files, whereas carriage-return-linefeed sequences are normally used in network connections. On input (i.e., with gets and read) the Tcl I/O system automatically translates the external end-of-line representation into newline characters. Upon output (i.e., with puts), the I/O system translates newlines to the external end-of-line representation. The default translation mode, auto, handles all the common cases automatically, but the -translation option provides explicit control over the end of line translations. The value associated with -translation is a single item for read-only and write-only channels. The value is a two-element list for read-write channels; the read translation mode is the first element of the list, and the write translation mode is the second ele- ment. As a convenience, when setting the translation mode for a read-write channel you can specify a single value that will apply to both reading and writing. When querying the translation mode of a read-write channel, a two-element list will always be returned. The following values are currently supported: auto As the input translation mode, auto treats any of newline (lf), carriage return (cr), or carriage return followed by a new- line (crlf) as the end of line representation. The end of line representation can even change from line-to-line, and all cases are translated to a newline. As the output translation mode, auto chooses a platform specific representation; for sockets on all platforms Tcl chooses crlf, for all Unix flavors, it chooses lf, for the Macintosh platform it chooses cr and for the various flavors of Windows it chooses crlf. The default setting for -translation is auto for both input and output. binary No end-of-line translations are performed. This is nearly identical to lf mode, except that in addition binary mode also sets the end-of-file character to the empty string (which disables it) and sets the encoding to binary (which disables encod- ing filtering). See the description of -eofchar and -encoding for more information. cr The end of a line in the underlying file or device is represented by a single carriage return character. As the input trans- lation mode, cr mode converts carriage returns to newline characters. As the output translation mode, cr mode translates newline characters to carriage returns. This mode is typically used on Macintosh platforms. crlf The end of a line in the underlying file or device is represented by a carriage return character followed by a linefeed char- acter. As the input translation mode, crlf mode converts carriage-return-linefeed sequences to newline characters. As the output translation mode, crlf mode translates newline characters to carriage-return-linefeed sequences. This mode is typi- cally used on Windows platforms and for network connections. lf The end of a line in the underlying file or device is represented by a single newline (linefeed) character. In this mode no translations occur during either input or output. This mode is typically used on UNIX platforms. STANDARD CHANNELS
The Tcl standard channels (stdin, stdout, and stderr) can be configured through this command like every other channel opened by the Tcl library. Beyond the standard options described above they will also support any special option according to their current type. If, for example, a Tcl application is started by the inet super-server common on Unix system its Tcl standard channels will be sockets and thus support the socket options. SEE ALSO
close(n), flush(n), gets(n), open(n), puts(n), read(n), socket(n), Tcl_StandardChannels(3) KEYWORDS
blocking, buffering, carriage return, end of line, flushing, linemode, newline, nonblocking, platform, translation, encoding, filter, byte array, binary Tcl 8.3 fconfigure(n)

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