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b64decode (1)
  • >> b64decode (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )

  • BSD mandoc
     

    NAME

    
    
    uuencode
    
     
    uudecode
    
     
    b64encode
    
     
    b64decode
    
     - encode/decode a binary file
    
     
    

    SYNOPSIS

    [-m ] [-o output_file ] [file ] name
    uudecode [-cimprs ] [file ... ]
    uudecode [-i ] -o output_file
    b64encode [-o output_file ] [file ] name
    b64decode [-cimprs ] [file ... ]
    b64decode [-i ] -o output_file [file ]  

    DESCRIPTION

    The and uudecode utilities are used to transmit binary files over transmission mediums that do not support other than simple ASCII data. The b64encode utility is synonymous with with the -m flag specified. The b64decode utility is synonymous with uudecode with the -m flag specified.

    The utility reads file (or by default the standard input) and writes an encoded version to the standard output, or output_file if one has been specified. The encoding uses only printing ASCII characters and includes the mode of the file and the operand name for use by uudecode

    The uudecode utility transforms uuencoded files (or by default, the standard input) into the original form. The resulting file is named either name or (depending on options passed to uudecode output_file and will have the mode of the original file except that setuid and execute bits are not retained. The uudecode utility ignores any leading and trailing lines.

    The following options are available for :

    -m
    Use the Base64 method of encoding, rather than the traditional algorithm.
    -o output_file
    Output to output_file instead of standard output.

    The following options are available for uudecode

    -c
    Decode more than one uuencoded file from file if possible.
    -i
    Do not overwrite files.
    -m
    When used with the -r flag, decode Base64 input instead of traditional input. Without -r it has no effect.
    -o output_file
    Output to output_file instead of any pathname contained in the input data.
    -p
    Decode file and write output to standard output.
    -r
    Decode raw (or broken) input, which is missing the initial and possibly the final framing lines. The input is assumed to be in the traditional encoding, but if the -m flag is used, or if the utility is invoked as b64decode then the input is assumed to be in Base64 format.
    -s
    Do not strip output pathname to base filename. By default uudecode deletes any prefix ending with the last slash '/' for security reasons.

     

    EXAMPLES

    The following example packages up a source tree, compresses it, uuencodes it and mails it to a user on another system. When uudecode is run on the target system, the file ``src_tree.tar.Z'' will be created which may then be uncompressed and extracted into the original tree.

    tar cf - src_tree | compress |
    uuencode src_tree.tar.Z | mail sys1!sys2!user
    

    The following example unpacks all uuencoded files from your mailbox into your current working directory.

    uudecode -c < $MAIL
    

    The following example extracts a compressed tar archive from your mailbox

    uudecode -o /dev/stdout < $MAIL | zcat | tar xfv -
    
     

    SEE ALSO

    basename(1), compress(1), mail(1), uucp(1)PqPaports/net/freebsd-uucp, uuencode(5)  

    HISTORY

    The uudecode and utilities appeared in BSD 4.0  

    BUGS

    Files encoded using the traditional algorithm are expanded by 35% (3 bytes become 4 plus control information).


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    EXAMPLES
    SEE ALSO
    HISTORY
    BUGS


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