multithreading - Screen big data without interrupting data conversion -

this thread extension of thread interruption (ctrl-c) stop data transfer less. create similar system monitoring data conversion found in fdupes. think can reached gnu screen. tools tee , buffers may not needed skip 2 sections if want.

hex conversion , tee [skip if know]

you can use whatever hex dumper want task, instance hexdump -v, od -v -t x1 , xxd -ps generation of example data. can create binary test data 1gb following command, discussed here

dd if=/dev/urandom of=sample.bin bs=64m count=16 

let's simplify old situation without while loop. assume have big file. put stin less

hexdump -v sample.bin | less -s -m +gg 

i discussing here how generate big test files. big file, empty screen when not press anything, since conversion under way. when press ctrl-c, data has been converted less @ bottom of screen. not data. interruption ctrl-c end transfer of data file less?

possibilities fix this

• refresh less somehow if conversion still underway
• bind tee command here somehow

is there way avoid interruption of data conversion able stream. think tee command 1 possibility.

buffers [i think not needed]

stdbuf -i0 -o0 -e0 xxd -ps sample.bin | stdbuf -i0 -o0 -e0 less -s -m +g 

which not resolve problem. should able refresh output in less, using flag r. interruption show in less.

i did not manage unbuffer command work stdbuf, discussing here.

screen

i think best way have glimpse of data conversion run inside screen. logic: give stdout less inside screen. scroll output in screen. have completed such task before may found in thread screen. have think once more again. create similar usability in command fdupes. think tee , buffer may not needed.

how can create screen monitoring window when less viewing parallerly data conversion?