utils upgrade

utils/.local/bin/running

@@ -1,12 +1,29 @@
 #!/usr/bin/env bash
 set -eo pipefail
 
-process_list="$(ps -eo 'pid command')"
-if [[ $# != 0 ]]; then
-  process_list="$(echo "$process_list" | grep -Fiw "$@")"
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    cat <<EOF
+Usage: $(basename "$0") [-h] [filter]
+
+Display running processes.
+
+Options:
+    -h, --help    Show this help message
+
+Arguments:
+    filter        Optional filter string to match processes
+
+EOF
+    exit 0
 fi
 
-echo "$process_list" |
-  grep -Fv "${BASH_SOURCE[0]}" |
-  grep -Fv grep |
-  GREP_COLORS='mt=00;35' grep -E --colour=auto '^\s*[[:digit:]]+'
+if [[ $# == 0 ]]; then
+    process_list="$(ps -eo 'pid command')"
+else
+    process_list="$(echo "$process_list" | grep -Fiw "$@")"
+fi
+
+echo "$process_list" \
+    | grep -Fv "${BASH_SOURCE[0]}" \
+    | grep -Fv grep \
+    | GREP_COLORS='mt=00;35' grep -E --colour=auto '^\s*[[:digit:]]+'