how to send a file to fpga through jtag uart?

thank you for your reply.however,i still have some questions about it

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E.g.: load file a.dat to address 0x1000:

1> load bin 0x1000 a.dat

and do i need input the the path and the a.dat .if i want to seng several files for example 3,what should i do?i guess that to make the command line three times?meanwhile,i want to send these files to sdram in up3,but the command line have nothing about the destination?such as sdram,flash or fpga?

in the reply of slacker's,whether the hostfs filing system is the" /mnt/rozipfs"?if so ,i want to send these files to sdram in up3,

can the the hostfs filing system implement sending three files at a time?i use the nios 1.1now,i only to see the altera zip read only file system,does ti result from the version 1.1?

thank you all the same!