utils upgrade

utils/.local/bin/trynafail

@@ -1,8 +1,24 @@
 #!/usr/bin/env bash
-set -u
+set -uo pipefail
+
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    cat <<EOF
+Usage: $(basename "$0") [-h] <command>
+
+Retry a command until it succeeds.
+
+Options:
+    -h, --help    Show this help message
+
+Arguments:
+    command       Command to repeatedly execute
+
+EOF
+    exit 0
+fi
 
 "$@"
 while [[ "$?" -ne 0 ]]; do
-  sleep 0.5
-  "$@"
+    sleep 0.5
+    "$@"
 done