Question

很难理解如何让python调用系统函数......

the_file = ('logs/consolidated.log.gz')         
webstuff = subprocess.Popen(['/usr/bin/zgrep', '/meatsauce/', the_file ],stdout=subprocess.PIPE) % dpt_search
    for line in webstuff.stdout:
        print line

尝试让python用我的搜索字符串构建另一个文件。

谢谢！

Answer 1

我推荐Doug Hellmann的PyMotW Subprocess page（引用）“阅读文档，所以你不必”

除此之外：

f = file('sourcefile')
for line in f:
    if 'pattern' in line:
            # mind the , at the end,
            # since there's no stripping involved
            # and print adds a newline without it
            print line,

除了Python Standard Library documentation for the re module中的文档之外，如果您需要匹配正则表达式，请参阅PyMotW Regular Expression page

python系统调用

1 个答案: