objdump: add page (#1463)

pages/linux/objdump.md

@@ -0,0 +1,15 @@
+# objdump
+
+> View information about object files.
+
+- Display the file header information:
+
+`objdump -f {{binary}}`
+
+- Display the dis-assembled output of executable sections:
+
+`objdump -d {{binary}}`
+
+- Display a complete binary hex dump of all sections:
+
+`objdump -s {{binary}}`