diff --git a/2005/mikeash/try.sh b/2005/mikeash/try.sh index 3d5f1c5d4..11488cc55 100755 --- a/2005/mikeash/try.sh +++ b/2005/mikeash/try.sh @@ -16,27 +16,44 @@ make CC="$CC" all >/dev/null || exit 1 clear -echo "$ ./mikeash < mikeash.c" 1>&2 +read -r -n 1 -p "Press any key to run: ./mikeash < mikeash.c (space = next page, q = quit): " +echo 1>&2 ./mikeash < mikeash.c +echo 1>&2 echo 1>&2 echo "The next command should print nothing." 1>&2 -read -r -n 1 -p "Press any key to continue: " -echo "$ ./mikeash < mikeash.c | diff - mikeash.c" 1>&2 -./mikeash < mikeash.c | diff - mikeash.c - +read -r -n 1 -p "Press any key to run: ./mikeash < mikeash.c | diff - mikeash.c: " echo 1>&2 +# ShellCheck is incorrect here: +# +# SC2094 (info): Make sure not to read and write the same file in the same pipeline. +# +# so we disable it. +# +# shellcheck disable=SC2094 +./mikeash < mikeash.c | diff - mikeash.c +echo 1>&2 + echo "For the next two commands we will add a newline after the command's output" 1>&2 echo "for your convenience as they will not print a newline themselves." 1>&2 echo 1>&2 echo "The next command should show: \"4." 1>&2 -read -r -n 1 -p "Press any key to continue: " -echo "$ echo '(format t "~s" (+ 2 2 ))' | ./mikeash" 1>&2 +read -r -n 1 -p "Press any key to run: echo '(format t \"~s\" (+ 2 2 ))' | ./mikeash: " +echo 1>&2 echo '(format t "~s" (+ 2 2 ))' | ./mikeash echo 1>&2 echo "The next command will evaluate the expression: (2+2) * (5 - 9/3), giving 8\"." 1>&2 -read -r -n 1 -p "Press any key to continue: " -echo "$ echo '(format t "~s" (* (+ 2 2 ) (- 5 (/ 9 3 ))))' | ./mikeash" 1>&2 + +# ShellCheck warns: +# +# SC2140 (warning): Word is of the form "A"B"C" (B indicated). Did you mean "ABC" or "A\"B\"C"? +# +# ShellCheck is wrong. +# +# shellcheck disable=SC2140 +read -r -n 1 -p "Press any key to run: echo '(format t "~s" (* (+ 2 2 ) (- 5 (/ 9 3 ))))' | ./mikeash: " +echo 1>&2 echo '(format t "~s" (* (+ 2 2 ) (- 5 (/ 9 3 ))))' | ./mikeash echo 1>&2