
Como posso dividir as linhas de saída usando tailf e awk assim?
A partir disso:
tail -f logfile.log | awk '/connected/ {print "\033[31m" $0 "\033[39m"}'
Saída:
2018-01-31 10:00 user connected autentication successful
2018-01-31 10:10 user connected autentication successful
2018-01-31 10:23 user connected autentication successful
2018-01-31 10:34 user connected autentication unsuccessful
2018-01-31 10:35 user connected autentication unsuccessful
Para esta saída:
2018-01-31 10:00 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:10 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:23 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:34 user connected autentication unsuccessful
----------------------------------------------------------
2018-01-31 10:35 user connected autentication unsuccessful
Desde já, obrigado!
Responder1
Se você quiser que as linhas separadoras sejam brancas:
tail -f logfile.log | awk '/connected/ {print "\033[31m" $0 "\033[39m\n-----------------------------------"}'
Se você quiser que a linha separadora fique vermelha:
tail -f logfile.log | awk '/connected/ {print "\033[31m" $0 "\n-----------------------------------\033[39m"}'
Responder2
Se tudo o que você deseja fazer é imprimir ----------------------------------------------------------
após cada linha, defina o ORS (separador de registro de saída) para o que você deseja que apareça após cada linha:
$ awk -v ORS='\033[39m\n----------------------------------------------------------\n' '/connected/ {print "\033[31m" $0}' foo
2018-01-31 10:00 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:10 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:23 user connected autentication successful
----------------------------------------------------------
2018-01-31 10:34 user connected autentication unsuccessful
----------------------------------------------------------
2018-01-31 10:35 user connected autentication unsuccessful
----------------------------------------------------------
Aqui, mudei \033[39m
para o ORS do print
comando e coloquei os hífens com novas linhas ( \n
).