使用 python 將 "\r\n" 轉換為 "\n"

眾所周知, Linux 下沒有 "\r\n", 而 windows 下文本工具默認打開文件時使用 t 模式, 使得寫入一行結尾的換行符為 "\r\n", 這樣造成了一個極大的麻煩, 直接編輯的 sh 腳本程序無法在 Linux 中運行.

此工具可快速將解決此煩惱.

 

dosToUnix.py

 

"""
將 "\r\n" 轉換為 "\n"
"""
import functools
import argparse
import os.path


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("-file", dest = "fileName")
    args = parser.parse_args()
    fileName = args.fileName
    assert fileName and os.path.exists(fileName), "file not found"

    with open(fileName, "rb") as f:
        data = bytearray(os.path.getsize(fileName))
        f.readinto(data)
        # print(data)
        data = data.replace(b"\r\n", b"\n")

    with open(fileName, "wb") as f:
        # print(data)
        f.write(data)


if __name__ == "__main__":
    main()

 

 

import sys
import os


def main():
    filename = sys.argv[1] if len(sys.argv) > 1 else ""
    assert filename and os.path.exists(filename)

    with open(filename, "rb") as fp:
        data = fp.read()

    if not data:
        return

    data = data.replace(b"\r\n", b"\n")
    data = data.replace(b"\r\x00\n\x00", b"\n\x00")

    with open(filename, "wb") as fp:
        fp.write(data)


if __name__ == '__main__':
    main()