添加SWAP占用率查询脚本

archrived-shells/showswap.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# 获取总 Swap（单位 kB）
+total_swap_kb=$(grep SwapTotal /proc/meminfo | awk '{print $2}')
+
+if [ "$total_swap_kb" -eq 0 ]; then
+    echo "系统未启用 Swap"
+    exit 1
+fi
+
+printf "%-8s %-12s %-25s %-12s %-8s\n" "PID" "USER" "PROCESS" "SWAP(MB)" "USAGE%"
+
+for pid in $(ls /proc | grep -E '^[0-9]+$'); do
+    if [ -r /proc/$pid/status ]; then
+        swap_kb=$(grep VmSwap /proc/$pid/status 2>/dev/null | awk '{print $2}')
+        if [ ! -z "$swap_kb" ] && [ "$swap_kb" -gt 0 ]; then
+            user=$(ps -o user= -p $pid 2>/dev/null)
+            comm=$(ps -o comm= -p $pid 2>/dev/null)
+
+            swap_mb=$(awk "BEGIN {printf \"%.2f\", $swap_kb/1024}")
+            percent=$(awk "BEGIN {printf \"%.2f\", ($swap_kb/$total_swap_kb)*100}")
+
+            printf "%-8s %-12s %-25s %-12s %-8s\n" \
+                "$pid" "$user" "$comm" "$swap_mb" "$percent"
+        fi
+    fi
+done | sort -k4 -nr