ebuild: add page (#2075)

pages/linux/ebuild.md

@@ -0,0 +1,35 @@
+# ebuild
+
+> A low level interface to the Gentoo Portage system.
+
+- Create or update the package manifest:
+
+`ebuild {{path/to/file.ebuild}} manifest`
+
+- Clean the temporary build directories for the build file:
+
+`ebuild {{path/to/file.ebuild}} clean`
+
+- Fetch sources if they do not exist:
+
+`ebuild {{path/to/file.ebuild}} fetch`
+
+- Extract the sources to a temporary build directory:
+
+`ebuild {{path/to/file.ebuild}} unpack`
+
+- Compile the extracted sources:
+
+`ebuild {{path/to/file.ebuild}} compile`
+
+- Install the package to a temporary install directory:
+
+`ebuild {{path/to/file.ebuild}} install`
+
+- Install the temporary files to the live filesystem:
+
+`ebuild {{path/to/file.ebuild}} qmerge`
+
+- Fetch, unpack, compile, install and qmerge the specified ebuild file:
+
+`ebuild {{path/to/file.ebuild}} merge`