通过Cygwin在Python脚本中运行rsync命令

Question

我正在尝试让这个工作，但我总是遇到这个问题：

subprocess.call(['c:/cygwin/bin/bash.exe', '--login', '-i', 'rsync', '-zrgo', '--omit-dir-times', '--verbose', '--delete', '.', 'usertwo@192.168.1.1:/var/www/project/'])

--

bash: /usr/bin/rsync: cannot execute binary file
126

Answer 1

你缺少了'-c'（命令）这个选项给bash。此外，你应该把rsync命令作为一个完整的字符串提供：

subprocess.call(['c:/cygwin/bin/bash.exe', '--login', '-i', '-c', 'rsync -zrgo --omit-dir-times --verbose --delete . usertwo@192.168.1.1:/var/www/project/'])

来自手册页面的说明：

-c string If the -c option is present,  then  commands  are  read  from
          string.   If  there  are arguments after the string, they are
          assigned to the positional parameters, starting with $0.

例如：

# bash /bin/ls
/bin/ls: /bin/ls: cannot execute binary file
# bash -c "/bin/ls -l"
<ls output>