问题
Without using the new 2.6 subprocess module, how can I get either os.popen or os.system to execute my commands using the tcsh instead of bash? I need to source some scripts which are written in tcsh before executing some other commands and I need to do this within python2.4.
EDIT Thanks for answers using 'tcsh -c', but I'd like to avoid this because I have to do escape madness. The string will be interpreted by bash and then interpreted by tcsh. I'll have to do something like:
os.system("tcsh -c '"+re.compile("'").sub(r"""'"'"'""",my_cmd)+"'")
Can't I just tell python to open up a 'tcsh' sub-process instead of a 'bash' subprocess? Is that possible?
P.S. I realize that bash is the cat's meow, but I'm working in a corporate environment and I'm going to choose to not fight a tcsh vs bash battle -- bigger fish to fry.
回答1:
Just prefix the shell as part of your command. I don't have tcsh installed but with zsh:
>>> os.system ("zsh -c 'echo $0'")
zsh
0
回答2:
How about:
>>> os.system("tcsh your_own_script")
Or just write the script and add
#!/bin/tcsh
at the beginning of the file and let the OS take care of that.
回答3:
Just set the shell to use to be tcsh
:
>>> os.environ['SHELL'] = 'tcsh'
>>> os.environ['SHELL']
'tcsh'
>>> os.system("echo $SHELL")
tcsh
来源:https://stackoverflow.com/questions/533398/in-python-2-4-how-can-i-execute-external-commands-with-csh-instead-of-bash