Add podman system prune and info commands

We are missing the equivalence of the docker system commands

This patch set adds `podman system prune`
and `podman system info`

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

5 files changed, 61 insertions, 2 deletions

diff --git a/docs/links/podman-system-info.1 b/docs/links/podman-system-info.1
new file mode 100644
index 000000000..809a71b8b
--- /dev/null
+++ b/docs/links/podman-system-info.1
@@ -0,0 +1 @@
+.so man1/podman-info.1
diff --git a/docs/podman-info.1.md b/docs/podman-info.1.md
index d3a0658c9..a6579ec1f 100644
--- a/docs/podman-info.1.md
+++ b/docs/podman-info.1.md
@@ -1,9 +1,9 @@
-% podman-version(1)
+% podman-info(1)
 
 ## NAME
+podman\-system\-info - Display system information
 podman\-info - Display system information
 
-
 ## SYNOPSIS
 **podman info** [*options*]
 
diff --git a/docs/podman-system-prune.1.md b/docs/podman-system-prune.1.md
new file mode 100644
index 000000000..1cdafb774
--- /dev/null
+++ b/docs/podman-system-prune.1.md
@@ -0,0 +1,37 @@
+% podman-system-prune(1) podman
+
+## NAME
+podman\-system\-prune - Remove all unused container, image and volume data
+
+## SYNOPSIS
+**podman system prune**
+[**-all**|**--a**]
+[**-force**|**--f**]
+[**-help**|**--h**]
+[**-volumes**|**--v**]
+
+## DESCRIPTION
+**podman system prune** removes all unused containers, (both dangling and unreferenced) from local storage and optionally, volumes.
+
+With the `all` option, you can delete all unused images.  Unused images are dangling images as well as any image that does not have any containers based on it.
+
+By default, volumes are not removed to prevent important data from being deleted if there is currently no container using the volume. Use the --volumes flag when running the command to prune volumes as well.
+
+## OPTIONS
+**--all, -a**
+
+Remove all unused images not just dangling ones.
+
+**--force, -f**
+
+Do not prompt for confirmation
+
+**--volumes**
+
+Prune volumes not used by at least one container
+
+## SEE ALSO
+podman(1), podman-image-prune(1), podman-container-prune(1), podman-volume-prune(1)
+
+# HISTORY
+February 2019, Originally compiled by Dan Walsh (dwalsh at redhat dot com)
diff --git a/docs/podman-system.1.md b/docs/podman-system.1.md
new file mode 100644
index 000000000..1b4bccdb9
--- /dev/null
+++ b/docs/podman-system.1.md
@@ -0,0 +1,20 @@
+% podman-system(1)
+
+## NAME
+podman\-system - Manage podman
+
+## SYNOPSIS
+**podman system** *subcommand*
+
+## DESCRIPTION
+The system command allows you to manage the podman systems
+
+## COMMANDS
+
+| Command  | Man Page                                            | Description                                                                  |
+| -------  | --------------------------------------------------- | ---------------------------------------------------------------------------- |
+| info     | [podman-system-info(1)](podman-info.1.md)           | Displays Podman related system information.                                  |
+| prune    | [podman-system-prune(1)](podman-system-prune.1.md)  | Remove all unused data                                                       |
+
+## SEE ALSO
+podman
diff --git a/docs/podman.1.md b/docs/podman.1.md
index 6200a07f0..51ef00383 100644
--- a/docs/podman.1.md
+++ b/docs/podman.1.md
@@ -162,6 +162,7 @@ the exit codes follow the `chroot` standard, see below:
 | [podman-start(1)](podman-start.1.md)      | Starts one or more containers.                                                 |
 | [podman-stats(1)](podman-stats.1.md)      | Display a live stream of one or more container's resource usage statistics.    |
 | [podman-stop(1)](podman-stop.1.md)        | Stop one or more running containers.                                           |
+| [podman-system(1)](podman-system.1.md)    | Manage podman.                                                                 |
 | [podman-tag(1)](podman-tag.1.md)          | Add an additional name to a local image.                                       |
 | [podman-top(1)](podman-top.1.md)          | Display the running processes of a container.                                  |
 | [podman-umount(1)](podman-umount.1.md)    | Unmount a working container's root filesystem.                                 |