From 0aa39f0aa2cacac6f76277d4150fb8374f641faa Mon Sep 17 00:00:00 2001
From: litblaky <litblaky@gmail.com>
Date: Tue, 8 Apr 2014 22:47:38 +0800
Subject: [PATCH] add env command

---
 pages/common/env.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 pages/common/env.md

diff --git a/pages/common/env.md b/pages/common/env.md
new file mode 100644
index 000000000..e28e76197
--- /dev/null
+++ b/pages/common/env.md
@@ -0,0 +1,19 @@
+# env
+
+> Show the environment or run a program in a modified environment
+
+- Show the environment
+
+`env`
+
+- Clear the environment and run a program
+
+`env -i {{program}}`
+
+- Remove variable from the environment and run a program
+
+`env -u {{variable}} {{program}}`
+
+- Set a variable and run a program
+
+`env {{variable}}={{value}} {{program}}`
\ No newline at end of file