scriptreplay: add page (#2928)

pages/linux/scriptreplay.md

@@ -0,0 +1,15 @@
+# scriptreplay
+
+> Replay a typescript created by the `script` command to the standard output.
+
+- Replay a typescript at the speed it was recorded:
+
+`scriptreplay {{path/to/timing_file}} {{path/to/typescript}}`
+
+- Replay a typescript at double the original speed:
+
+`scriptreplay {{path/to/timingfile}} {{path/to/typescript}} 2`
+
+- Replay a typescript at half the original speed:
+
+`scriptreplay {{path/to/timingfile}} {{path/to/typescript}} 0.5`