从txt文件中收集特定行

Question

sample of the txt file

我想从包含 NVSS 关键字的txt文件中提取整行，并将其导出为新的txt文件，但我不知道如何执行此操作。 谢谢

Answer 1

提取包含＆＃39; NVSS＆＃39;的每一行。到一个新文件：

with open('infile.txt', 'r') as infile, open('outfile.txt', 'w') as outfile:
    for line in infile:
        if 'NVSS' in line:
            outfile.write(line)