utils upgrade

utils/.local/bin/mksh

@@ -1,21 +1,35 @@
 #!/usr/bin/env bash
 set -eo pipefail
 
-if [ ! $# -eq 1 ]; then
-  echo 'mksh takes one argument' 1>&2
-  exit 1
-elif [ -e "$1" ]; then
-  echo "$1 already exists" 1>&2
-  exit 1
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    cat <<EOF
+Usage: $(basename "$0") [-h] <script>
+
+Create a new bash script with boilerplate.
+
+Options:
+    -h, --help    Show this help message
+
+Arguments:
+    script        Script filename to create
+
+EOF
+    exit 0
 fi
 
-echo '#!/usr/bin/env bash
-set -e
-set -u
-set -o pipefail
+if [ ! $# -eq 1 ]; then
+    echo 'mksh takes one argument' 1>&2
+    exit 1
+elif [ -e "$1" ]; then
+    echo "$1 already exists" 1>&2
+    exit 1
+fi
 
-' > "$1"
+{
+    echo '#!/usr/bin/env bash'
+    echo 'set -eo pipefail'
+    echo
+} > "$1"
 
 chmod u+x "$1"
-
-nano "$1"
+exec "$EDITOR" "$1"