【Purpose】
Learning linux command tee, read from standard input and write to standard output and files
【Eevironment】
Ubuntu 16.04 terminal
【Produce】
vmuer@vmuer-VirtualBox:/tmp$ ping www.baidu.com | tee ping.log | grep error ^C vmuer@vmuer-VirtualBox:/tmp$ cat ping.log PING www.a.shifen.com (180.101.49.11) 56(84) bytes of data. 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=1 ttl=52 time=6.73 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=2 ttl=52 time=7.04 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=3 ttl=52 time=7.32 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=4 ttl=52 time=6.58 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=5 ttl=52 time=6.49 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=6 ttl=52 time=6.87 ms 64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=7 ttl=52 time=6.24 ms