Output to stdout and external txt file

Question

I am trying to redirect the stdout of a particular output to a txt file, however I would still like to view it in the console log

tail -f /var/log/kern.log | ./prsfwlog -f elfs/prs_log.elf | \
grep -E --line-buffered "RSSI|SNR" | sed -n -e 's/^.*RTS\/Grant //p'

this is the line that gets me the desired output I have tried a variety of redirects and tees and have not been successful

Using tee is the logical answer. Perhaps you could show us what you did that didn't work. — harrymc, Commented Oct 7, 2022 at 16:23
as mentioned, tee is the proper answer but you can indeed use tail but you will need to tail the command from either a different terminal or turn that one loose with & and tail from there.. — Señor CMasMas, Commented Oct 7, 2022 at 18:02
tee >( grep -E "RSSI|SNR" ) RSSI_SNR_LOGS.txt I added this to the end of my code with a | — Nir, Commented Oct 7, 2022 at 18:22

AllBlooming · Accepted Answer · 2022-10-09 19:33:12Z

0

Try

tail -f /var/log/kern.log | ./prsfwlog -f elfs/prs_log.elf | \
grep -E --line-buffered "RSSI|SNR" | sed -n -e 's/^.*RTS\/Grant //p' | tee myfile.txt

answered Oct 9, 2022 at 19:33

AllBlooming

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