small things

housekeeping.sh

@@ -2,7 +2,6 @@
 
 # Housekeeping Script
 # Unified system maintenance: package index update, system cleanup, and oh-my-zsh update.
-# Combines the former update.sh and clean.sh into a single script with subcommand dispatch.
 
 set -euo pipefail
 
@@ -109,9 +108,9 @@ get_system_info() {
 
     # Memory info
     if [[ -f /proc/meminfo ]]; then
-        local mem_total mem_available
-        mem_total=$(grep MemTotal /proc/meminfo | awk '{print $2}')
-        mem_available=$(grep MemAvailable /proc/meminfo | awk '{print $2}')
+        local mem_total="" mem_available=""
+        mem_total=$(awk '/^MemTotal:/ {print $2; exit}' /proc/meminfo 2>/dev/null || true)
+        mem_available=$(awk '/^MemAvailable:/ {print $2; exit}' /proc/meminfo 2>/dev/null || true)
         if [[ -n "$mem_total" && -n "$mem_available" ]]; then
             info+="Memory: $((mem_available/1024))MB available of $((mem_total/1024))MB total"
         fi
@@ -120,7 +119,7 @@ get_system_info() {
     # Disk space info
     if command_exists df; then
         local disk_info
-        disk_info=$(df -h / 2>/dev/null | tail -1 | awk '{print $4 " available of " $2 " total"}')
+        disk_info=$(df -h / 2>/dev/null | awk 'NR == 2 {print $4 " available of " $2 " total"}' || true)
         if [[ -n "$disk_info" ]]; then
             info+="${info:+, }Disk: $disk_info"
         fi
@@ -495,7 +494,6 @@ cleanup_logs() {
     fi
 
     # Truncate large active log files
-    local large_logs
     while IFS= read -r -d '' logfile; do
         if [[ -f "$logfile" && -w "$logfile" ]]; then
             truncate -s 0 "$logfile" 2>/dev/null || true
@@ -774,7 +772,7 @@ main() {
             log_warning "Unknown subcommand: '${subcommand}'"
             echo
             print_usage
-            exit 0
+            exit 1
             ;;
     esac
 }