docker exec the hard way

Author: surajssd

docker/docker_exec_the_hard_way.md

@@ -0,0 +1,22 @@
+## `docker exec` the hard way
+
+- Using tool `nsenter` we can enter any namespace.
+- Install `nsenter` instreuctions [here](https://github.com/jpetazzo/nsenter#how-do-i-install-nsenter-with-this).
+- Find `pid` of a running process:
+
+```bash
+docker inspect --format {{.State.Pid}} <container_name or container_id>
+```
+
+- Use `nsenter`
+
+```bash
+sudo nsenter --target <container pid> --uts --pid --net --mount --ipc
+```
+
+
+### Ref:
+
+- Video: https://www.youtube.com/watch?v=qRxzrJwSW_4
+- nsenter repo: https://github.com/jpetazzo/nsenter
+- nsenter docs: http://man7.org/linux/man-pages/man1/nsenter.1.html

editor/intellij/shortcuts.md

@@ -64,6 +64,10 @@ Comment/Uncomment out with block comment, a line or selected block.
 
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+- `Alt + cursor right/left`
+
+Switch tabs of open files.
+
 
 ## Notes and Tips