From 3c33a6b9876f85fe4fbf409413e01c8d5970a1b1 Mon Sep 17 00:00:00 2001
From: Elijah Shackelford <33649649+eshack94@users.noreply.github.com>
Date: Wed, 7 Oct 2020 07:45:08 -0400
Subject: [PATCH] docker-exec: add page (#4518)

---
 pages/common/docker-exec.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 pages/common/docker-exec.md

diff --git a/pages/common/docker-exec.md b/pages/common/docker-exec.md
new file mode 100644
index 000000000..4b93fe2ab
--- /dev/null
+++ b/pages/common/docker-exec.md
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+# docker exec
+
+> Execute a command on an already running Docker container.
+> More information: <https://docs.docker.com/engine/reference/commandline/exec/>.
+
+- Enter an interactive shell session on an already-running container:
+
+`docker exec -it {{container_name}} {{/bin/bash}}`
+
+- Run a command in the background (detached) on a running container:
+
+`docker exec -d {{container_name}} {{command}}`
+
+- Select the working directory for a given command to execute into:
+
+`docker exec -it -w {{path/to/directory}} {{container_name}} {{command}}`
+
+- Run a command in background on existing container but keep `stdin` open:
+
+`docker exec -i -d {{container_name}} {{command}}`
+
+- Set an environment variable in a running bash session:
+
+`docker exec -it -e {{variable_name}}={{value}} {{container_name}} {{/bin/bash}}`