isoinfo: add page (#1400)

pages/linux/isoinfo.md

@@ -0,0 +1,15 @@
+# isoinfo
+
+> Utility programs for dumping and verifying ISO disk images.
+
+- List all the files included in an ISO image:
+
+`isoinfo -f -i {{path/to/image.iso}}`
+
+- E[x]tract a specific file from an ISO image and send it out stdout:
+
+`isoinfo -i {{path/to/image.iso}} -x {{/PATH/TO/FILE/INSIDE/ISO.EXT}}`
+
+- Show header information for an ISO disk image:
+
+`isoinfo -d -i {{path/to/image.iso}}`