Commands tagged docker ps (7)

  • It requires https://jqplay.org/, that comes with brew: brew install jq Show Sample Output


    2
    docker ps -q | xargs -n 1 docker inspect | jq '.[0].NetworkSettings.Ports +{} | map(select(. != null)[0].HostPort) | map("-L \(.):localhost:\(.)") ' | sed -n 's/.*"\(.*\)".*/\1/p' |xargs boot2docker ssh -N
    keymon · 2014-07-27 23:30:31 0
  • When you run a lot of containers the built in docker ps output becomes unreadable. This command formats the output to be easier on the eyes. Requires q (https://github.com/harelba/q) text as data. Show Sample Output


    0
    docker ps | sed -e 's/ /\+/g' -e 's/CONTAINER ID/CONTAINER_ID/' | tr -s '+' '\t' | q -t 'select c1,substr(c7, 0, 40),c2,c6 from -' | column -t
    akaivola · 2014-06-06 07:20:36 1
  • Applies 'docker rm' to all container IDs that appear in 'docker ps -a' but not in 'docker ps' - i.e. the ones that are not running. Show Sample Output


    0
    $ docker rm `(docker ps -q && docker ps -qa) | sort | uniq -u`
    vlf · 2014-09-16 14:08:54 1

  • 0
    docker rm $(docker ps -aqf status=exited)
    nfvs · 2015-02-27 09:19:39 0

  • 0
    docker stats --no-stream $( docker ps -q ) | sed -e "$( docker ps --format "{{.ID}} {{.Names}}" | sed -e "s/\(.*\) \(.*\)/s\/\1\/\2\t\/g;/" )"
    gtron · 2016-04-14 15:20:13 0
  • If you have many port mappings, docker ps output becomes pretty illegible. The ~120 char one-liner changes the output into a more readable list of container! Show Sample Output


    0
    docker ps | perl -ple "s/\$/\n\n/g;s/\s{2,}/\n/g;s/(Up)/\\e\[32m\$1\\e\[0m/g;s/(Down)/\\e\[31m\\e\[5m\$1\\e\[25m\\e\[0m/g;s/^([^\n]+)/\\e\[1m\$1\\e\[0m/g;s/(\w+?)$/\\e\[4m\$1\\e\[24m/g" | more
    zauberstuhl · 2017-01-05 02:46:15 0
  • Useful if your Docker host starts running out of disk space due to Docker debris. You should start by running "sudo docker ps" in order to check that all required containers are in fact running, and fix any that aren't before proceeding to the main event! "sudo docker rm $(sudo docker ps -q -f status=exited)" removes all containers which are no longer running. "sudo docker rmi $(sudo docker images -q -f dangling=true)" removes all Docker images not required for currently running containers.


    0
    sudo docker rm $(sudo docker ps -q -f status=exited); sudo docker rmi $(sudo docker images -q -f dangling=true)
    Roundand · 2017-04-25 11:29:19 1

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Selecting a random file/folder of a folder
Also looks in subfolders

Kill all processes that don't belong to root/force logoff
explanation: grep -- displays process ids -v -- negates the matching, displays all but what is specified in the other options -u -- specifies the user to display, or in this case negate The process loops through all PIDs that are found by pgrep, then orders a forced kill to the processes in numerical order, effectively killing the parent processes first including the shells in use which will force the users to logout. Tested on Slackware Linux 12.2 and Slackware-current

Add fade in/out to first & last 25 frames of a video
Replace vid.mp4 with the path to your original video file, and out.mp4 to the path where you want to save the new file. To view the output first before saving, remove "-consumer avformat:out.mp4" from the end. Documentation for mlt framework and melt command can be found here: http://www.mltframework.org/bin/view/MLT/Documentation

Install pip with Proxy
Installs pip packages defining a proxy

Silently deletes lines containing a specific string in a bunch of files
This command will find all occurrences of one or more patterns in a collection of files and will delete every line matching the patterns in every file

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Numeric zero padding file rename
rename file name with fixed length nomeric format pattern

Inserts the results of an autocompletion in the command line
Pressing ESC then * will insert in the command line the results of the autocompletion. It's hard to explain but if you look the sample output or do $ echo ESC * you will understand quickly. By the way, few reminders about ESC : - Hold ESC does the same thing as tab tab - 'ESC .' inserts the last argument of last command (can be done many times in order to get the last argument of all previous commands)

Makes the permissions of file2 the same as file1
Also works with: $chgrp --reference file1 file2 $chown --reference file1 file2

make, or run a script, everytime a file in a directory is modified


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