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moby--moby/man/docker-logs.1.md
Antonio Murdaca 6653f82796 Merge pull request #17495 from mikebrow/docker-tz-and-nanosecond-updates
modifying docker --since and --until to support nanoseconds and time …
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% DOCKER(1) Docker User Manuals % Docker Community % JUNE 2014

NAME

docker-logs - Fetch the logs of a container

SYNOPSIS

docker logs [-f|--follow[=false]] [--help] [--since[=SINCE]] [-t|--timestamps[=false]] [--tail[="all"]] CONTAINER

DESCRIPTION

The docker logs command batch-retrieves whatever logs are present for a container at the time of execution. This does not guarantee execution order when combined with a docker run (i.e., your run may not have generated any logs at the time you execute docker logs).

The docker logs --follow command combines commands docker logs and docker attach. It will first return all logs from the beginning and then continue streaming new output from the containers stdout and stderr.

Warning: This command works only for the json-file or journald logging drivers.

OPTIONS

--help Print usage statement

-f, --follow=true|false Follow log output. The default is false.

--since="" Show logs since timestamp

-t, --timestamps=true|false Show timestamps. The default is false.

--tail="all" Output the specified number of lines at the end of logs (defaults to all logs)

The --since option can be Unix timestamps, date formated timestamps, or Go duration strings (e.g. 10m, 1h30m) computed relative to the client machines time. Supported formats for date formated time stamps include RFC3339Nano, RFC3339, 2006-01-02T15:04:05, 2006-01-02T15:04:05.999999999, 2006-01-02Z07:00, and 2006-01-02. The local timezone on the client will be used if you do not provide either a Z or a +-00:00 timezone offset at the end of the timestamp. When providing Unix timestamps enter seconds[.nanoseconds], where seconds is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a fraction of a second no more than nine digits long. You can combine the --since option with either or both of the --follow or --tail options.

HISTORY

April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on docker.com source material and internal work. June 2014, updated by Sven Dowideit SvenDowideit@home.org.au July 2014, updated by Sven Dowideit SvenDowideit@home.org.au April 2015, updated by Ahmet Alp Balkan ahmetalpbalkan@gmail.com October 2015, updated by Mike Brown mikebrow@gmail.com