diff --git a/2013/endoh1/try.sh b/2013/endoh1/try.sh
index 2dbdbf189..d10254a00 100755
--- a/2013/endoh1/try.sh
+++ b/2013/endoh1/try.sh
@@ -17,12 +17,12 @@ clear
 
 read -r -n 1 -p "Press any key to run: less endoh1.c (space = next page, q = quit): "
 echo 1>&2
-less -EXF endoh1.c
+less -rEXFK endoh1.c
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./endoh1 hello.lazy: "
+read -r -n 1 -p "Press any key to run: ./endoh1 hello.lazy (space = next page, q = quit): "
 echo 1>&2
-./endoh1 hello.lazy
+./endoh1 hello.lazy | less -rEXFK
 echo 1>&2
 
 read -r -n 1 -p "Press any key to run: ./hello: "
@@ -35,12 +35,13 @@ echo 1>&2
 # ShellCheck gets this wrong, thinking ./echo is the shell built-in or system
 # command so we disable the warning.
 #
-# ^----^ SC2216 (warning): Piping to 'echo', a command that doesn't read stdin. Did you want 'cat' instead?
+# SC2216 (warning): Piping to 'echo', a command that doesn't read stdin. Did you want 'cat' instead?
+# https://www.shellcheck.net/wiki/SC2216
 # shellcheck disable=SC2216
 echo Hello | ./echo
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./tac < endoh1.c | less (space = next page, q = quit): "
+read -r -n 1 -p "Press any key to run: ./tac < endoh1.c (space = next page, q = quit): "
 echo 1>&2
-./tac < endoh1.c | less -EXF
+./tac < endoh1.c | less -rEXFK
 echo 1>&2