From 745a0ddca7a2ba039d7cbf8e7822e7aa0c6d2769 Mon Sep 17 00:00:00 2001
From: "Zekai.Zheng" <zekai.zheng@tabcorp.com.au>
Date: Fri, 30 Oct 2015 14:20:12 +1100
Subject: [PATCH] Add the nix-env for common

---
 pages/common/nix-env.md | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 pages/common/nix-env.md

diff --git a/pages/common/nix-env.md b/pages/common/nix-env.md
new file mode 100644
index 000000000..eb00ce4a3
--- /dev/null
+++ b/pages/common/nix-env.md
@@ -0,0 +1,39 @@
+# nix-env
+
+> Manipulate or query Nix user environments
+
+- Show available package with name or without name
+
+`nix-env -qa {{pkg_name}}`
+
+- Show the status of available packages
+
+`nix-env -qas`                             
+
+- Install package
+
+`nix-env -i {{pkg_name}}`
+
+- Uninstall package
+
+`nix-env -e {{pkg_name}}`
+
+- Upgrade one package
+
+`nix-env -u {{pkg_name}}`
+
+- Upgrade all packages
+
+`nix-env -u`
+
+- Rollback changes
+    
+`nix-env --rollback`
+
+- List all profiles
+
+`nix-env --list-generations`
+
+- Switch to specific profile
+
+`nix-env --switch-generation {{profile_number}}`