Improve 2012/omoikane/try scripts

2012/omoikane/try.sh

@@ -23,27 +23,29 @@ PERL="$(type -P perl)"
 
 echo "$ echo \"A quick brown fox jumps over the lazy dog\" | ./nyaruko > output.c" 1>&2
 echo "A quick brown fox jumps over the lazy dog" | ./nyaruko > output.c
-read -r -n 1 -p "Press any key to run: less -EX output.c (space = next page, q = quit): "
+read -r -n 1 -p "Press any key to show output.c (space = next page, q = quit): "
 echo 1>&2
-less -EX output.c
+less -rEXFK output.c
 
 # perl specific stuff
-if [[ -n "$PERL" ]]; then
+if [[ -n "$PERL" && -f "$PERL" && -x "$PERL" ]]; then
     read -r -n 1 -p "Press any key to run: ${PERL} output.c > data.c: " 1>&2
     echo 1>&2
     "${PERL}" output.c > data.c
-    read -r -n 1 -p "Press any key to run: less -EX data.c (space = next page, q = quit): "
+    read -r -n 1 -p "Press any key to show data.c (space = next page, q = quit): "
+    echo 1>&2
+    less -rEXFK data.c
+    echo 1>&2
+    read -r -n 1 -p "Press any key to run: cc -o data data.c: "
     echo 1>&2
-    less -EX data.c
-    echo "$ cc -o data data.c" 1>&2
     cc -o data data.c
     read -r -n 1 -p "Press any key to run: ./data: "
-    echo "$ ./data" 1>&2
     echo 1>&2
     ./data
 fi
 
-echo "$ cc -o output output.c" 1>&2
+read -r -n 1 -p "Press any key to run: cc -o output output.c: "
+echo 1>&2
 cc -o output output.c
 read -r -n 1 -p "Press any key to run: ./output: "
 echo 1>&2
@@ -53,37 +55,41 @@ echo "$ ./output" 1>&2
 read -r -n 1 -p "Press any key to run: ./nyaruko < output > output.c: "
 echo 1>&2
 ./nyaruko < output > output.c
-read -r -n 1 -p "Press any key to run: less -EX output.c (space = next page, q = quit): "
+read -r -n 1 -p "Press any key to show output.c (space = next page, q = quit): "
 echo 1>&2
-less -EX output.c
+less -rEXFK output.c
 
 read -r -n 1 -p "Press any key to run: bash output.c > key.c: "
+echo 1>&2
 bash output.c > key.c
 echo 1>&2
-read -r -n 1 -p "Press any key to run: less -EX key.c (space = next page, q = quit): "
-less -EX key.c
+read -r -n 1 -p "Press any key to run: show key.c (space = next page, q = quit): "
+less -rEXFK key.c
 
 # more perl stuff
-if [[ -n "${PERL}" ]]; then
+if [[ -n "${PERL}" && -f "$PERL" && -x "$PERL" ]]; then
     read -r -n 1 -p "Press any key to run: ${PERL} output.c > data.c: "
     echo 1>&2
     "${PERL}" output.c > data.c
-    read -r -n 1 -p "Press any key to run: less -EX data.c (space = next page, q = quit): "
+    read -r -n 1 -p "Press any key to show data.c (space = next page, q = quit): "
     echo 1>&2
-    less -EX data.c
+    less -rEXFK data.c
     read -r -n 1 -p "Press any key to run: cat key.c data.c > output.c: "
     echo 1>&2
     cat key.c data.c > output.c
-    read -r -n 1 -p "Press any key to run: less -EX output.c (space = next page, q = quit): "
+    read -r -n 1 -p "Press any key to show output.c (space = next page, q = quit): "
+    echo 1>&2
+    less -rEXFK output.c
+    read -r -n 1 -p "Press any key to run: cc output.c -o output: "
     echo 1>&2
-    less -EX output.c
-    echo "$ cc output.c -o output" 1>&2
     cc output.c -o output
     read -r -n 1 -p "Press any key to run: ./output > output.2: "
     echo 1>&2
     ./output > output.2
-    echo "$ chmod +x output.2" 1>&2
+    read -r -n 1 -p "Press any key to run: chmod +x output.2: "
+    echo 1>&2
     chmod +x output.2
     read -r -n 1 -p "Press any key to run: ./output.2: "
+    echo 1>&2
     ./output.2
 fi