docker_del_all_images.sh

#!/bin/bash

#irfancode: ~ $ docker images 
#REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
#<none>              <none>              b9c598fc58d7        4 days ago          187.9 MB
#mysql               latest              a917fce37db8        3 weeks ago         360.3 MB
#ubuntu              14.04               3876b81b5a81        4 weeks ago         187.9 MB
#hello-world         latest              690ed74de00f        4 months ago        960 B

#irfancode: ~ $ docker rmi $(docker images -q)
#Deleted: sha256:b9c598fc58d75f30712ee2407627c201311e3b9fed134a531610ac5445ddfe48
#Deleted: sha256:76a2d549b86f8fe65d76bddd8c2960bb3b5bf78ae27d4875881cb8e20005bb31
#Deleted: sha256:321990f9e2ae506d8a3caef896f1c88cb0d6695646660532de8215ce86461b4b
#Untagged: mysql:latest
#Deleted: sha256:a917fce37db8b4e03a0b09d2d3321405ea5444a029f60f1cd90505834622e678
#Deleted: sha256:5043890ff69e8129fb980b87fb36189bebc06dd64660dfd68e1158326c2612f2
#Deleted: sha256:8c9b3e7d397d3f7857c0b5dfb09df7b2e433b00db01633b20d0cfb911a5a3bb1
#Deleted: sha256:97d384c269caec2b8d27a5ccfe8f80f4616f3b51c8572c373879df3c548a4f58
#Deleted: sha256:2a430133bfd233b16d6771e9bf8f4009270cc54cc57c8d1de8516b8811e0adf4
#Deleted: sha256:07d1100349109dae01d0730c0003716d710c2f8b597565c1e8d5d9b2db535ea4
#Deleted: sha256:745b9daa59cd51fc160bbd2a20df89fe2e66fcadc7f1ed96db5c4bfce5feab09
#Deleted: sha256:c6e865ea40299c0ce0fe94c8d55149184dd43bc3a8cc065546fd1d560bb1e584
#Deleted: sha256:22bfda7df215617ab0764cbf204e93d02fdc7bd143abcf7d3e23dcd5a6b35473
#Deleted: sha256:5ecb6d372998b472081c73b068ef4ddcc5e1950f61dc1056d370408b9aba2bf2
#Deleted: sha256:5a75c86050b38a325d481e7ca69a5ea9a41de7d9bb21a0533552e86ed125defc
#Deleted: sha256:6cbb7e3b59f983332d86460c751cf1c87044f4b912ec37db57b6954112e9331b
#Deleted: sha256:88c3498eae9e39d7cbf3429a3155d995a9b0fa0a9e16183da711419264be9b8a
#Deleted: sha256:ab92b9f2a8c932bbca78469f11515df02bb26986b99efa5f6fa8bd81fd10f492
#Deleted: sha256:b60528ebabc9563b9e37da309e05169670d40934e8dc2dd544f3873770b04fab
#Deleted: sha256:0c650b3801622851e7b86058f914be69af2d1425ab9f834e26b29975ed193df9
#Deleted: sha256:78dbfa5b7cbc2bd94ccbdba52e71be39b359ed7eac43972891b136334f5ce181
#Untagged: ubuntu:14.04
#Deleted: sha256:3876b81b5a81678926c601cd842040a69eb0456d295cd395e7a895a416cf7d91
#Deleted: sha256:947a3e7125fffa10ed14c49c9dccdcfd64aef816c4affa8d5d2b57ae7a2e8b6d
#Deleted: sha256:5fdb9f26c74d68049527b951ad0cd2a50893d41f5fbf2f2042ec6c592445c2f1
#Deleted: sha256:37b9c1ff87ee1d64a110df0a092c262219382c009d86ae4cc84433f6cb29e7cb
#Deleted: sha256:8698b31c92d5cf4ee37154fc560516040f372bd45707c3161be479443970d8a2
#Untagged: hello-world:latest
#Deleted: sha256:690ed74de00f99a7d00a98a5ad855ac4febd66412be132438f9b8dbd300a937d
#Deleted: sha256:32ada9ef4cd3ccd536337fbcd8cdb6e026237f59db80498f83f3175176561ffb
#Deleted: sha256:b652ec3a27e758f30de4742156b5d096bb19c82f2dc836e96e430323ba166ffe

#irfancode: ~ $ docker images
#REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
#irfancode: ~ $

#100% sure you will clean all images with below command
docker rmi $(docker images -q)