get.swap.sh

function getswap {
    # 定义过滤阈值（100MB = 102400 KB）
    MIN_TOTAL_KB=102400  # 100MB
    
    # 列宽定义（同前）
    COLUMNS=$(tput cols 2>/dev/null || echo 80)
    CONTAINER_WIDTH=20
    TYPE_WIDTH=10
    CMD_WIDTH=$((COLUMNS - 8 - 12 - 12 - 12 - CONTAINER_WIDTH - TYPE_WIDTH - 4))
    [ $CMD_WIDTH -lt 40 ] && CMD_WIDTH=40

    # 表头输出（同前）
    printf "%8s %12s %12s %12s %-${CONTAINER_WIDTH}s %-${TYPE_WIDTH}s %-${CMD_WIDTH}s\n" \
           "PID" "Swap" "Mem" "Total" "Container" "Type" "Command Line"
    printf "%8s %12s %12s %12s %-${CONTAINER_WIDTH}s %-${TYPE_WIDTH}s %-${CMD_WIDTH}s\n" \
           "" "" "" "" "$(printf '%.0s-' $(seq 1 $CONTAINER_WIDTH))" \
           "$(printf '%.0s-' $(seq 1 $TYPE_WIDTH))" \
           "$(printf '%.0s-' $(seq 1 $CMD_WIDTH))"

    # 进程遍历与数据采集（修改过滤条件，添加nginx例外）
    for PID in $(ls /proc/ | grep -E '^[0-9]+$'); do  
        DIR="/proc/$PID"
        [ -d "$DIR" ] || continue
        
        SWAP=$(grep -h 'Swap:' "$DIR/smaps" 2>/dev/null | awk '{sum+=$2} END {print sum}')
        SWAP=${SWAP:-0}
        MEM=$(grep -h 'Rss:' "$DIR/smaps" 2>/dev/null | awk '{sum+=$2} END {print sum}')
        MEM=${MEM:-0}
        TOTAL=$((SWAP + MEM))
        
        CMDLINE=$(cat "$DIR/cmdline" 2>/dev/null | tr '\0' ' ' | sed 's/ $//' || ps -p "$PID" -o comm=)
        
        # 判断并替换
        if [[ $CMDLINE == *"sh -c function getswap"* ]]; then
            CMDLINE="self"
        fi
        
        # 新过滤逻辑：只要swap存在，一律不准跳过；nginx进程强制显示
        if [ $SWAP -gt 0 ] || echo "$CMDLINE" | grep -q 'nginx'; then
            # 单位转换（同前）
            SWAP_HUMAN=$(numfmt --to=iec-i --suffix=B $((SWAP * 1024)))
            MEM_HUMAN=$(numfmt --to=iec-i --suffix=B $((MEM * 1024)))
            TOTAL_HUMAN=$(numfmt --to=iec-i --suffix=B $((TOTAL * 1024)))
            
            # 获取容器和命令行（同前）
            CONTAINER=$(
                (grep -oP 'docker/\K[^/]+' "$DIR/cgroup" 2>/dev/null || echo "") | head -n1 | \
                xargs -I {} sh -c 'docker inspect --format "{{.Name}}" {} 2>/dev/null || echo ""' | \
                sed 's/^\///'
            )
            # 进程类型识别：node则为Node.js，否则unknown
            PROC_TYPE="unknown"
            if echo "$CMDLINE" | grep -q 'node'; then
                PROC_TYPE="Node.js"
            fi
            
            # 输出主进程（同前）
            printf "%8d %12s %12s %12s %-${CONTAINER_WIDTH}s %-${TYPE_WIDTH}s %s\n" \
                   "$PID" "$SWAP_HUMAN" "$MEM_HUMAN" "$TOTAL_HUMAN" "$CONTAINER" "$PROC_TYPE" "$CMDLINE"
        fi
    done | sort -k2,2hr -k4,4hr  # 按Swap降序，Total降序排序

    # 汇总计算（同前）
    OVERALL_SWAP=$(find /proc/ -maxdepth 1 -type d -name '[0-9]*' 2>/dev/null -exec sh -c 'grep -h "Swap:" "$1/smaps" 2>/dev/null | awk "{sum+=\$2} END {print sum}"' _ {} \; | awk '{sum+=$1} END {print sum}')
    OVERALL_MEM=$(find /proc/ -maxdepth 1 -type d -name '[0-9]*' 2>/dev/null -exec sh -c 'grep -h "Rss:" "$1/smaps" 2>/dev/null | awk "{sum+=\$2} END {print sum}"' _ {} \; | awk '{sum+=$1} END {print sum}')
    OVERALL_TOTAL=$((OVERALL_SWAP + OVERALL_MEM))
    OVERALL_SWAP_HUMAN=$(numfmt --to=iec-i --suffix=B $((OVERALL_SWAP * 1024)))
    OVERALL_MEM_HUMAN=$(numfmt --to=iec-i --suffix=B $((OVERALL_MEM * 1024)))
    OVERALL_TOTAL_HUMAN=$(numfmt --to=iec-i --suffix=B $((OVERALL_TOTAL * 1024)))
    printf "\nOverall Swap: %12s\nOverall Mem:  %12s\nOverall Total:%12s\n" "$OVERALL_SWAP_HUMAN" "$OVERALL_MEM_HUMAN" "$OVERALL_TOTAL_HUMAN"
}

getswap