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"docker container exec ... ls -l" - Files on Container
How to list files on a Running Container using the "docker container exec ... ls -l" command?
✍: FYIcenter.com
If the running container is based on a Linux system,
we can definitely run the "ls -l" command on the container
using the "docker container exec ... ls -l" command
as shown below.
1. Create a new container from the "openjdk" image and start it in interactive mode.
fyicenter$ docker container create --name java --tty --interactive openjdk fyicenter$ docker container start --attach --interactive java jshell> 1+2; fyicenter$1 ==> 3 jshell>
2. Open another console and make sure that the container is running
fyicenter$ docker container list CONTAINER ID IMAGE COMMAND CREATED STATUS NAMES 77b2863fe925 openjdk "jshell" 2 minutes ago Up About a minute java
3. Run the "ls -l" command on the container:
fyicenter$ docker container exec java ls -l total 52 lrwxrwxrwx 1 root root 7 bin -> usr/bin dr-xr-xr-x 2 root root 4096 boot drwxr-xr-x 5 root root 360 dev drwxr-xr-x 1 root root 4096 etc drwxr-xr-x 2 root root 4096 home lrwxrwxrwx 1 root root 7 lib -> usr/lib lrwxrwxrwx 1 root root 9 lib64 -> usr/lib64 drwxr-xr-x 2 root root 4096 media drwxr-xr-x 2 root root 4096 mnt drwxr-xr-x 2 root root 4096 opt dr-xr-xr-x 225 root root 0 proc dr-xr-x--- 1 root root 4096 root drwxr-xr-x 1 root root 4096 run lrwxrwxrwx 1 root root 8 sbin -> usr/sbin drwxr-xr-x 2 root root 4096 srv dr-xr-xr-x 12 root root 0 sys drwxrwxrwt 1 root root 4096 tmp drwxr-xr-x 1 root root 4096 usr drwxr-xr-x 1 root root 4096 var
4. Run the "java -version" command on the container:
fyicenter$ docker container exec java java -version openjdk version "12.0.1" 2019-04-16 OpenJDK Runtime Environment (build 12.0.1+12) OpenJDK 64-Bit Server VM (build 12.0.1+12, mixed mode, sharing)
As you can see, we are able to run "ls -l" and "java -version" on the container, while the default command "jshell" is running.
So the container created from the "openjdk" image does support the Linux commands and JDK command.
⇒ "docker container exec --tty --interactive ... /bin/sh"
⇐ "docker container exec" - Execute Command on Container
2021-10-10, 1818🔥, 0💬
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