1,准备好3个文件

   （1）compare.sh

   （2）gdsA.pipo  (summery文件中，layer部分）

   （3）gdsB.pipo (summery文件中，layer部分）

2，打开terminal，键入

      ./compare.sh ./gdsA.pipo ./gdsB.pipo

3，生成比较页面，可查看哪些layer出现了变动

附，compare.sh：

#!/bin/bash

# Script Name: compare_sorted_first4cols.sh
# Description: Extract first 4 columns from two text files, sort them, save sorted files, and compare using vimdiff
# Usage: ./compare_sorted_first4cols.sh file1.txt file2.txt

# Check if exactly two arguments are provided
if [ $# -ne 2 ]; then
    echo "Error: Exactly two filenames are required as arguments"
    echo "Usage: $0 file1.txt file2.txt"
    exit 1
fi

# Get input filenames
FILE1="$1"
FILE2="$2"

# Check if files exist
if [ ! -f "$FILE1" ]; then
    echo "Error: File '$FILE1' does not exist"
    exit 1
fi

if [ ! -f "$FILE2" ]; then
    echo "Error: File '$FILE2' does not exist"
    exit 1
fi

# Create temporary files
TMP1=$(mktemp /tmp/file1_cols.XXXXXX)
TMP2=$(mktemp /tmp/file2_cols.XXXXXX)

# Extract first 4 columns to temporary files
echo "Extracting first 4 columns from $FILE1..."
awk '{print $1, $2, $3, $4}' "$FILE1" > "$TMP1"

echo "Extracting first 4 columns from $FILE2..."
awk '{print $1, $2, $3, $4}' "$FILE2" > "$TMP2"

# Create sorted output filenames in current directory
SORTED1="$(basename "$FILE1" .txt)_sorted_first4.txt"
SORTED2="$(basename "$FILE2" .txt)_sorted_first4.txt"

# Sort the extracted columns and save to current directory
echo "Sorting extracted columns and saving to current directory..."
sort "$TMP1" > "$SORTED1"
sort "$TMP2" > "$SORTED2"

echo "Sorted files created:"
echo "  - $SORTED1"
echo "  - $SORTED2"

echo "Comparing sorted results using vimdiff..."
echo "Press ESC and then type :qa to exit vimdiff"

# Compare using vimdiff
vimdiff "$SORTED1" "$SORTED2"

# Clean up temporary files
rm -f "$TMP1" "$TMP2"

echo "Comparison completed, temporary files removed"
echo "Sorted files preserved in current directory: $SORTED1, $SORTED2"