such - usr bin env python沒有此一檔案或目錄




env:python \ r:沒有這樣的文件或目錄 (4)

falsetru的答案絕對解決了我的問題。 我寫了一個小助手,允許我規範化多個文件的行結尾。 因為我對多個平台上的行結尾不太熟悉,所以程序中使用的術語可能不是100%正確。

#!/usr/bin/env python
# Copyright (c) 2013  Niklas Rosenstein
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

import os
import sys
import glob
import argparse

def process_file(name, lend):
    with open(name, 'rb') as fl:
        data = fl.read()

    data = data.replace('\r\n', '\n').replace('\r', '\n')
    data = data.replace('\n', lend)
    with open(name, 'wb') as fl:
        fl.write(data)

def main():
    parser = argparse.ArgumentParser(description='Convert line-endings of one '
            'or more files.')
    parser.add_argument('-r', '--recursive', action='store_true',
            help='Process all files in a given directory recursively.')
    parser.add_argument('-d', '--dest', default='unix',
            choices=('unix', 'windows'), help='The destination line-ending '
            'type. Default is unix.')
    parser.add_argument('-e', '--is-expr', action='store_true',
            help='Arguments passed for the FILE parameter are treated as '
            'glob expressions.')
    parser.add_argument('-x', '--dont-issue', help='Do not issue missing files.',
            action='store_true')
    parser.add_argument('files', metavar='FILE', nargs='*',
            help='The files or directories to process.')
    args = parser.parse_args()

    # Determine the new line-ending.
    if args.dest == 'unix':
        lend = '\n'
    else:
        lend = '\r\n'

    # Process the files/direcories.
    if not args.is_expr:
        for name in args.files:
            if os.path.isfile(name):
                process_file(name, lend)
            elif os.path.isdir(name) and args.recursive:
                for dirpath, dirnames, files in os.walk(name):
                    for fn in files:
                        fn = os.path.join(dirpath, fn)
                        process_file(fn, fn)
            elif not args.dont_issue:
                parser.error("File '%s' does not exist." % name)
    else:
        if not args.recursive:
            for name in args.files:
                for fn in glob.iglob(name):
                    process_file(fn, lend)
        else:
            for name in args.files:
                for dirpath, dirnames, files in os.walk('.'):
                    for fn in glob.iglob(os.path.join(dirpath, name)):
                        process_file(fn, lend)

if __name__ == "__main__":
    main()

我的Python腳本包含以下shebang:

#!/usr/bin/env python

當我運行腳本$ ./beak ,我得到了

env: python\r: No such file or directory

我之前從存儲庫中提取了此腳本。 這可能是什麼原因?


在vim或vi中打開文件,並管理以下命令:

:set ff=unix

保存並退出:

:wq

完成!

說明

ff代表文件格式 ,可以接受unix\n ), dos\r\n )和mac\r \r\n )的\r (僅適用於pre-intel macs,現代mac使用unix )。

要了解有關ff命令的更多信息:

:help ff

:wq代表W rite和Q uit,更快的等價是Shift + zz (即按住Shift然後按兩次z )。

必須在命令模式下使用這兩個命令。

用於多個文件

沒有必要在vim中實際打開文件。 可以直接從命令行進行修改:

 vi +':wq ++ff=unix' file_with_dos_linebreaks.py

要處理多個*.py文件:

for file in *.py ; do
    vi +':w ++ff=unix' +':q' ${file}
done

您可以將結尾的行轉換為* nix友好的行

dos2unix beak

該腳本包含CR字符。 shell將這些CR字符解釋為參數。

解決方案:使用以下腳本從腳本中刪除CR字符。

with open('beak', 'rb+') as f:
    content = f.read()
    f.seek(0)
    f.write(content.replace(b'\r', b''))
    f.truncate()






env