Improve 2020/kurdyukov4/try.sh

The author stated that it gets progressively slower with less context so
it now uses time(1).

2020/kurdyukov4/try.sh

@@ -15,35 +15,39 @@ make CC="$CC" all >/dev/null || exit 1
 # clear screen after compilation so that only the entry is shown
 clear
 
-read -r -n 1 -p "Press any key to run: ./prog Shakespeare.txt 2000 10 1: "
+read -r -n 1 -p "Press any key to run: time ./prog Shakespeare.txt 2000 10 1: "
 echo 1>&2
-./prog Shakespeare.txt 2000 10 1
+time ./prog Shakespeare.txt 2000 10 1
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./prog Shakespeare.txt 2000 9 1: "
+read -r -n 1 -p "Press any key to run: time ./prog Shakespeare.txt 2000 9 1: "
 echo 1>&2
-./prog Shakespeare.txt 2000 9 1
+time ./prog Shakespeare.txt 2000 9 1
 echo 1>&2
 
-read -r -n 1 -p "Press any key to run: ./prog Shakespeare.txt 2000 8 1: "
+read -r -n 1 -p "Press any key to run: time ./prog Shakespeare.txt 2000 8 1: "
 echo 1>&2
-./prog Shakespeare.txt 2000 8 1
+time ./prog Shakespeare.txt 2000 8 1
 
-read -r -n 1 -p "Press any key to run: ./prog Eugene_Onegin.txt 2000 10 1: "
+read -r -n 1 -p "Press any key to run: time ./prog Eugene_Onegin.txt 2000 10 1: "
 echo 1>&2
-./prog Eugene_Onegin.txt 2000 10 1
+time ./prog Eugene_Onegin.txt 2000 10 1
 
-echo "$ echo "00000000000000000000 01 02 02 02 02 02 02" > test.txt" 1>&2
+read -r -n 1 -p "Press any key to run: echo 00000000000000000000 01 02 02 02 02 02 02 > test.txt: "
+echo 1>&2
 echo "00000000000000000000 01 02 02 02 02 02 02" > test.txt
 echo 1>&2
-make rand >/dev/null || exit 0
 
-read -r -n 1 -p "Press any key to run: ./prog test.txt 1000 2 123: "
+read -r -n 1 -p "Press any key to run: time ./prog test.txt 1000 2 123: "
 echo 1>&2
-./prog test.txt 1000 2 123
+time ./prog test.txt 1000 2 123
 echo 1>&2
-read -r -n 1 -p "Press any key to run: ./rand test.txt 1000 2 123" 1>&2
+
+read -r -n 1 -p "Press any key to run: make rand >/dev/null: "
 echo 1>&2
-./rand test.txt 1000 2 123
+make rand >/dev/null || exit 0
+read -r -n 1 -p "Press any key to run: time ./rand test.txt 1000 2 123" 1>&2
+echo 1>&2
+time ./rand test.txt 1000 2 123
 
 exit 0