Linux下执行py文件提示"No such file or directory"

找到了hash-identifier(Software to identify the different types of hashes used to encrypt data and especially passwords.)的源码，在Windows下创建文本复制进去，再将“hash-identifier.py”传到Linux（Ubuntu）执行"./hash-identifier.py"，提示"No such file or directory"，而"python hash-identifier.py"则可以，最后发现是文件格式问题，vim中查看":set fileformat"果然是dos，vim中"set ff=unix"解决：可直接执行"./hash-identifier.py"