diff --git a/pages/common/test.md b/pages/common/test.md
new file mode 100644
index 0000000000..26ccfd8860
--- /dev/null
+++ b/pages/common/test.md
@@ -0,0 +1,24 @@
+# test
+
+> Evaluate condition.
+> If it is true, returns 0 exit status, otherwise returns 1.
+
+- Test if given variable is equal to given string
+
+`test $MY_VAR == '/bin/zsh'`
+
+- Test if given variable is empty
+
+`test -z $GIT_BRANCH`
+
+- Test if file exists
+
+`test -e {{filename}}`
+
+- Test if directory not exists
+
+`test ! -d {{path/to/directory}}`
+
+- If-else statement
+
+`test {{condition}} && echo "true" || echo "false"`