18. 背景程序

18. 背景程序

在背景運作 ping 127.0.0.1，并把 STDOUT 輸出到 /tmp/stdout，把 STDERR 輸出到 /tmp/stderr

ping 127.0.0.1 >> /tmp/stdout 2> /tmp/stderr &

nohup ping 127.0.0.1 >> tmp/stdout 2> /tmp/stderr &

# 打開檔案檢視

PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.

64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.049 ms

64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.054 ms

64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.054 ms

64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.054 ms

64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=0.055 ms

......