install: add page (#1140)

pages/common/install.md

@@ -0,0 +1,24 @@
+# install
+
+> Copy files and set attributes.
+> Copy files (often executable) to a system location like `/usr/local/bin`, give them the appropriate permissions/ownership.
+
+- Copy files to destination:
+
+`install {{path/to/source}} {{path/to/destination}}`
+
+- Copy files to destination, setting their ownership:
+
+`install -o {{user}} {{path/to/source}} {{path/to/destination}}`
+
+- Copy files to destination, setting their group ownership:
+
+`install -g {{user}} {{path/to/source}} {{path/to/destination}}`
+
+- Copy files to destination, setting their `mode`:
+
+`install -m {{+x}} {{path/to/source}} {{path/to/destination}}`
+
+- Copy files and apply access/modification times of source to destination:
+
+`install -p {{path/to/source}} {{path/to/destination}}`