Add my-scripts/shell/swatchz.sh file

my-scripts/shell/swatchz.sh

@@ -0,0 +1,46 @@
+swatch_usage() {
+    cat <<EOF >&2
+NAME
+       swatch - execute a program periodically with "watch". Supports aliases.
+
+SYNOPSIS
+       swatch [options] command
+
+OPTIONS
+       -n, --interval seconds (default: 1)
+              Specify update interval.  The command will not allow quicker than 
+              0.1 second interval.
+EOF
+}
+
+if [ $# -eq 0 ]; then
+    swatch_usage
+    exit 1
+fi
+
+seconds=1
+shell="$SHELL"
+
+while [ $# -gt 0 ]; do
+    case "$1" in
+    -n)
+        seconds="$2"
+        args="${@:3}"
+        shift 3
+        ;;
+    -h)
+        swatch_usage
+        exit 1
+        ;;
+    *)
+        args="${@:1}"
+        break
+        ;;
+    esac
+done
+
+# Get the base name of the shell executable
+shell_basename=$(basename "$shell")
+
+watch --color -n "$seconds" --exec "$shell" -ic "$args || true"
+