diff --git a/2004/sds/try.sh b/2004/sds/try.sh
index 86c50994c..80fde7233 100755
--- a/2004/sds/try.sh
+++ b/2004/sds/try.sh
@@ -15,41 +15,60 @@ make CC="$CC" all >/dev/null || exit 1
 # clear screen after compilation so that only the entry is shown
 clear
 
-echo "$ ./sds < sds.c > encoder.c" 1>&2
-./sds < sds.c > encoder.c
+read -r -n 1 -p "Press any key to show sds.c (space = next page, q = quit): "
+echo 1>&2
+less -rEXF sds.c
 echo 1>&2
 
-echo "$ make encoder 2>/dev/null" 1>&2
+read -r -n 1 -p "Press any key to run: ./sds < sds.c | tee encoder.c (space = next page, q = quit): "
+echo 1>&2
+./sds < sds.c | tee encoder.c | less -rEXF
+echo 1>&2
+
+read -r -n 1 -p "Press any key to run: make encoder 2>/dev/null: "
+echo 1>&2
 make encoder 2>/dev/null
 echo 1>&2
 
-echo "$ ./encoder README.md <sds.c >sds_msg.c"
-./encoder README.md <sds.c >sds_msg.c
+echo "$ ./encoder README.md <sds.c | tee sds_msg.c" 1>&2
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./encoder README.md <sds.c | tee sds_msg.c | less -rEXF
 
-echo "$ make sds_msg 2>/dev/null" 1>&2
+read -r -n 1 -p "Press any key to run: make sds_msg 2>/dev/null: "
+echo 1>&2
 make sds_msg 2>/dev/null
 echo 1>&2
 
-echo "$ ./sds_msg < sds.c > sds2_msg.c" 1>&2
-./sds_msg < sds.c > sds2_msg.c
+echo "$ ./sds_msg < sds.c | tee sds2_msg.c | less -rEXF" 1>&2
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./sds_msg < sds.c | tee sds2_msg.c | less -rEXF
 
-echo "$ diff sds2_msg.c encoder.c" 1>&2
-diff sds2_msg.c encoder.c
+read -r -n 1 -p "Press any key to run: diff -s sds2_msg.c encoder.c: "
+echo 1>&2
+diff -s sds2_msg.c encoder.c
+echo 1>&2
 
-echo "$ echo 'Hello, World!' > message" 1>&2
+read -r -n 1 -p "Press any key to run: echo 'Hello, World!' > message: "
+echo 1>&2
 echo 'Hello, World!' > message
+echo 1>&2
 
-echo "$ ./encoder message < README.md > remarks.md" 1>&2
-./encoder message < README.md > remarks.md
+echo "$ ./encoder message < README.md | tee remarks.md" 1>&2
+read -r -n 1 -p "Press any key to continue (space = next page, q = quit): "
+echo 1>&2
+./encoder message < README.md | tee remarks.md | less -rEXF
+echo 1>&2
 
-read -r -n 1 -p "Press any key to show diff remarks.md README.md: "
-echo "$ diff remarks.md README.md" 1>&2
+read -r -n 1 -p "Press any key to run: diff remarks.md README.md: "
+echo 1>&2
 diff remarks.md README.md # notice how similar they are
 echo "Did you notice how similar they are?" 1>&2
 echo 1>&2
-read -r -n 1 -p "Press any key to continue: "
 
-echo 1>&2
 # and then observe:
-echo "$ ./sds < remarks.md" 1>&2
+read -r -n 1 -p "Press any key to run: ./sds < remarks.md: "
+echo 1>&2
 ./sds < remarks.md
+echo 1>&2