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How to display the last few lines of logs command in docker

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2022-02-07 15:21:1013142browse

In docker, you can use the "--tail" parameter of the logs command to display the last few lines of logs. The logs command is used to obtain the logs of the container. The "--tail" parameter is used to set only the latest lines to be listed. Several container logs, the syntax is "docker logs --tail=number of lines".

How to display the last few lines of logs command in docker

The operating environment of this tutorial: linux7.3 system, docker-1.13.1 version, Dell G3 computer.

How to display the last few lines of the logs command in docker

docker logs: Get the log of the container

Syntax

docker logs [OPTIONS] CONTAINER

OPTIONS description:

-f: Trace log output

--since: Display all logs at a certain start time

-t: Display timestamp

--tail: List only The latest N container logs

Instance

Trace and view the log output of the container mynginx.

runoob@runoob:~$ docker logs -f mynginx
192.168.239.1 - - [10/Jul/2016:16:53:33 +0000] "GET / HTTP/1.1" 200 612 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36" "-"
2016/07/10 16:53:33 [error] 5#5: *1 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 192.168.239.1, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.239.130", referrer: "http://192.168.239.130/"
192.168.239.1 - - [10/Jul/2016:16:53:33 +0000] "GET /favicon.ico HTTP/1.1" 404 571 "http://192.168.239.130/" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36" "-"
192.168.239.1 - - [10/Jul/2016:16:53:59 +0000] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36" "-"
...

View the latest 10 logs of the container mynginx from July 1, 2016.

docker logs --since="2016-07-01" --tail=10 mynginx

Recommended learning: "docker video tutorial"

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