apk: add page (#1978)

pages/linux/apk.md

@@ -0,0 +1,27 @@
+# apk
+
+> Alpine Linux package management tool.
+
+- Update repository indexes from all remote repositories:
+
+`apk update`
+
+- Install a new package:
+
+`apk add {{package}}`
+
+- Remove a package:
+
+`apk del {{package}}`
+
+- Repair package or upgrade it without modifying main dependencies:
+
+`apk fix {{package}}`
+
+- Search package via keyword:
+
+`apk search {{keyword}}`
+
+- Get info about a specific package:
+
+`apk info {{package}}`