在python中使用os.popen转换linux命令

  

我如何执行此命令:

ACTIVE_MGMT_1=`ssh -n ${MGMT_IP_1}  ". .bash_profile; xms sho proc TRAF.*" 2>/dev/null |egrep " A " |awk '/TRAF/{print $1}' |cut -d "." -f2`;

通过python运行?

我正在尝试做:

active_mgmgt_1 = os.popen("""ssh -n MGMT_IP_1  ". .bash_profile; xms sho proc TRAF.*" 2>/dev/null |egrep " A " |awk '/TRAF/{print $1}' |cut -d "." -f2""")
SITE_NAME = site_name.read().replace('\n', '') 

但这是行不通的.

解决方法:

将subprocess.check_output与shell = True一起使用:

cmd = r'''ssh -n ${MGMT_IP_1} ". .bash_profile; xms sho proc TRAF.*" 2>/dev/null |egrep " A " |awk '/TRAF/{print $1}' |cut -d "." -f2'''
output = subprocess.check_output(cmd, shell=True)

更新

subprocess.check_output已在Python 2.7中添加.如果您使用旧版本的Python,请改用subprocess.Popen.communicate.

proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
output, errmsg = proc.communicate()
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