Update

1 files changed, 18 insertions, 1 deletions

diff --git a/bin/unix/stopwatch.sh b/bin/unix/stopwatch.sh
index 70f6b0c..6b76c26 100755
--- a/bin/unix/stopwatch.sh
+++ b/bin/unix/stopwatch.sh
@@ -1,9 +1,21 @@
 #! /bin/bash
 # Ref: https://superuser.com/questions/611538/611582#611582
 
+# If user type '^C', then use SIGINT to toggle the display
+trap '[ "$SHOWGIVEN" = yes ] && SHOWGIVEN= || SHOWGIVEN=yes' SIGINT
+# Do not print "^C" when SIGINT caught
+stty -ctlecho
+
+# Hide the cursor
 tput civis
+
+# Wait user input
 read -p '? ' input
 
+# Modify input to fit the format that `date` can read
+# s -> sec
+# m -> min
+# h -> hour
 [[ "$input" =~ s && ! "$input" =~ sec  ]] && input="$(sed s/s/sec/  <<<"$input")"
 [[ "$input" =~ m && ! "$input" =~ min  ]] && input="$(sed s/m/min/  <<<"$input")"
 [[ "$input" =~ h && ! "$input" =~ hour ]] && input="$(sed s/h/hour/ <<<"$input")"
@@ -14,7 +26,12 @@ given=$(date +%s -d "$input")
 stop=$(( $given - $start ))
 while [ $time -ne $stop ]; do
     time="$(( $(date +%s) - $start ))"
-    printf '%s\r' "$(date -u -d "@$time" +%H:%M:%S)"
+    if [ -z "$SHOWGIVEN" ]; then
+        printf '%s\r' "$(date -u -d @$time +%H:%M:%S)"
+    else 
+        printf '%s\r' "$(date -u -d @$stop +%H:%M:%S)"
+    fi
     sleep 0.3
 done
+
 printf "\e[1;31m$(date -u -d "@$time" +%H:%M:%S)"