1、[root@zz log]# mv elink.log  elink.log.001

2、[root@zz ~]# ps -ef | grep -i filebeat
root       7090   3121  0 20:39 pts/0    00:00:00 ./filebeat -e -c /root/filebeat-8.8.0-linux-x86_64/prospectors/elink.yaml
root       7128   3297  0 20:40 pts/3    00:00:00 grep -i filebeat
[root@zz ~]# ps -ef | grep python
root       7099   3269  0 20:39 pts/2    00:00:00 python test.py
root       7130   3297  0 20:41 pts/3    00:00:00 grep python

3、
[root@zz ~]# lsof -p 7090
COMMAND   PID USER   FD   TYPE             DEVICE  SIZE/OFF    NODE NAME

filebeat 7090 root    8rW  REG                8,3         0 1190451 /root/filebeat-8.8.0-linux-x86_64/data/filebeat.lock
filebeat 7090 root    9u   REG                8,3     25546 1190455 /root/filebeat-8.8.0-linux-x86_64/data/registry/filebeat/log.json
filebeat 7090 root   10r   REG                8,3      1666 1190456 /var/log/elink.log.001

4、[root@zz ~]# lsof -p 7099
COMMAND  PID USER   FD   TYPE DEVICE SIZE/OFF    NODE NAME

python  7099 root    3w   REG    8,3     2126 1190456 /var/log/elink.log.001