




Command:   sz - send a file using the zmodem protocol
Syntax:    sz [-LNbdefnopqruvy+] [-ci command] [-Ll n] [-t timeout]
Flags:     -L  Use n-byte packets
           -N  Overwrite if source is newer/longer
           -b  Binary file
           -c  Send command for execution
           -d  Convert dot to slash in names
           -e  Escape for all control characters
           -f  Send full path name
           -i  Send command and return immediately
           -l  Flow control every n packets
           -n  Overwrite destination if source is newer
           -o  Use old (16-bit) checksum
           -p  Protect file if it already exists
           -q  Quiet; opposite of verbose
           -r  Resume interrupt file transfer
           -t  Set timeout in tenths of a second
           -u  Unlink file after successful transmission
           -v  Verbose; opposite of quiet
           -y  Yes, clobber existing files
           -+  Append to an existing file
Example:   sz file </dev/tty1 >/dev/tty1 # Send file

     XMODEM, YMODEM, and ZMODEM are  a  family  of  protocols  that  are
widely  used  is  the MS-DOS world for transferring information reliably
from one computer to another.  In all of these protocols,  a  series  of
bytes   are   sent   from  one  computer  to  the  other,  and  then  an
acknowledgement is sent back to confirm  correct  reception.   Checksums
are  used  to detect errors so that transmission is reliable even in the
face of noisy telephone lines.  Sz is a program that sends a  file  sent
from  another  computer  using  the  zmodem  protocol.   The file can be
received using rz.  Both are a highly complex programs.  See Chap. 9 for
more information.  For an alternative, see kermit.

























                                                                        

