nohup 功能说明：将程序以忽略挂起信号的方式运行起来，被运行程序的输出信息将不会显示到终端。 输出将写入到当前目录的nohup.out文件中。如果当前目录的nohup.out文件不可写，则输出到 $HOME/nohup.out 中 重要提示： nohup后台运行命令，关闭shell后进程会终止 当用 nohup 执行脚本： nohup sh /tmp/import_mysql_data.sh & 关闭shell时，再打开shell ，发现进程会退出。 解决办法： 输入exit命令退出终端 范例： [root@testdb62 ~]# nohup ping baidu.com & [1] 16923 [root@testdb62 ~]# nohup: ignoring input and appending output to ‘nohup.out’ [root@testdb62 ~]# tail -f nohup.out mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 2013 (HY000) at line 481: Lost connection to MySQL server during query PING baidu.com (220.181.38.148) 56(84) bytes of data. 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=1 ttl=49 time=31.2 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=2 ttl=49 time=29.9 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=3 ttl=49 time=31.5 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=4 ttl=49 time=29.9 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=5 ttl=49 time=30.0 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=6 ttl=49 time=31.8 ms 64 bytes from 220.181.38.148 (220.181.38.148): icmp_seq=7 ttl=49 time=29.8 ms