晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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Current File : //opt/cpguard/app/scripts/fw_list.sh
#!/bin/bash

# Run nft list ruleset and suppress long element lists
nft list ruleset | awk '
BEGIN {
    in_set = 0
    in_elements = 0
    element_count = 0
    buffer = ""
    elements_buffer = ""
}

# Match the start of a set definition
/^[[:space:]]+(set) / {
    # Flush any previous set
    if (in_set) {
        flush_set()
    }

    # Start new set
    in_set = 1
    in_elements = 0
    element_count = 0
    buffer = $0 "\n"
    elements_buffer = ""
    next
}

# Match lines that are part of set definition (indented)
/^[[:space:]]+/ {
    if (!in_set) {
        print
        next
    }

    # Set properties
    if ($1 == "type" || $1 == "flags" || $1 == "auto-merge" || $1 == "size" || $1 == "timeout" || $1 == "gc-interval" || $1 == "policy" || $1 == "comment") {
        buffer = buffer $0 "\n"
        next
    }

    # Start of elements
    if ($1 == "elements") {
        in_elements = 1
        match($0, /^[[:space:]]+/)
        indent = substr($0, 1, RLENGTH)
        buffer = buffer indent
        next
    }

    # Inside elements block
    if (in_elements) {
        # Check for closing brace of elements first
        if ($0 ~ /^[[:space:]]+}[[:space:]]*$/) {
            # Store the closing brace separately
            elements_closing_brace = $0
            next
        }

        # Store elements lines
        elements_buffer = elements_buffer $0 "\n"

        # Count elements - count actual IPs/entries, not commas
        gsub(/^[[:space:]]+/, "", $0)  # Remove leading whitespace
        gsub(/[[:space:]]+$/, "", $0)  # Remove trailing whitespace
        gsub(/,$/, "", $0)              # Remove trailing comma

        if ($0 ~ /[0-9a-fA-F:.]|"/ && $0 !~ /^[[:space:]]*$/) {
            # Split by comma and count non-empty entries
            n = split($0, items, /,[[:space:]]*/)
            for (i = 1; i <= n; i++) {
                gsub(/^[[:space:]]+/, "", items[i])
                gsub(/[[:space:]]+$/, "", items[i])
                if (items[i] != "") {
                    element_count++
                }
            }
        }
        next
    }

    # Closing brace of set
    if ($0 ~ /^[[:space:]]+}[[:space:]]*$/) {
        flush_set()
        print $0

        # Reset for next set
        in_set = 0
        in_elements = 0
        element_count = 0
        buffer = ""
        elements_buffer = ""
        elements_closing_brace = ""
        next
    }

    buffer = buffer $0 "\n"
    next
}

# Match any other line (non-indented) - table/chain definitions, rules, etc.
{
    # Flush any pending set
    if (in_set) {
        flush_set()
        in_set = 0
        in_elements = 0
        element_count = 0
        buffer = ""
        elements_buffer = ""
        elements_closing_brace = ""
    }
    print
}

function flush_set() {
    if (in_elements && element_count > 0) {
        printf "%s", buffer

        if (element_count <= 50) {
            # Show all elements
            printf "elements = {\n"
            printf "%s", elements_buffer
            # Get indentation from closing brace
            match(elements_closing_brace, /^[[:space:]]+/)
            ind = substr(elements_closing_brace, 1, RLENGTH)
            printf "%s\t\t     \033[33m# Total: %d entries\033[0m\n", ind, element_count
            print elements_closing_brace
        } else {
            # Show first 20 elements
            printf "elements = {\n"

            # Parse and print first 20 elements
            split(elements_buffer, lines, "\n")
            printed = 0
            for (i = 1; i <= length(lines) && printed < 20; i++) {
                if (lines[i] ~ /[0-9a-fA-F:.]|"/) {
                    line = lines[i]
                    # Extract indentation
                    match(line, /^[[:space:]]+/)
                    ind = substr(line, 1, RLENGTH)
                    rest = substr(line, RLENGTH + 1)

                    # Remove trailing comma and whitespace
                    gsub(/,[[:space:]]*$/, "", rest)

                    split(rest, items, /,[[:space:]]*/)
                    for (j = 1; j <= length(items) && printed < 20; j++) {
                        gsub(/^[[:space:]]+/, "", items[j])
                        gsub(/[[:space:]]+$/, "", items[j])
                        if (items[j] != "") {
                            if (printed > 0) printf ",\n"
                            printf "%s%s", ind, items[j]
                            printed++
                        }
                    }
                }
            }

            # Get indentation from closing brace
            match(elements_closing_brace, /^[[:space:]]+/)
            ind = substr(elements_closing_brace, 1, RLENGTH)

            printf ",\n%s\t\t     \033[36m# +%d entries...\033[0m\n", ind, element_count - printed
            printf "%s\t\t     \033[33m# Total: %d entries\033[0m\n", ind, element_count
            print elements_closing_brace
        }
    } else if (in_elements && element_count == 0) {
        printf "%s", buffer
        printf "elements = { }\n"
    } else {
        printf "%s", buffer
    }
}

END {
    if (in_set) {
        flush_set()
    }
}
'