[英]Run BASH built-in commands in Python?
Is there a way to run the BASH built-in commands from Python?有没有办法从 Python 运行 BASH 内置命令?
I tried:我试过:
subprocess.Popen(['bash','history'],shell=True, stdout=PIPE)
subprocess.Popen('history', shell=True, executable = "/bin/bash", stdout=subprocess.PIPE)
os.system('history')
and many variations thereof.及其许多变体。 I would like to run
history
or fc -ln
.我想运行
history
或fc -ln
。
I finally found a solution that works.我终于找到了一个有效的解决方案。
from subprocess import Popen, PIPE, STDOUT
shell_command = 'bash -i -c "history -r; history"'
event = Popen(shell_command, shell=True, stdin=PIPE, stdout=PIPE,
stderr=STDOUT)
output = event.communicate()
Thank you everyone for the input.谢谢大家的意见。
subprocess.Popen(["bash", "-c", "type type"])
this calls bash and tells bash to run the string type type
, which runs the builtin command type
on the argument type
.这个电话bash和告诉Bash运行字符串
type type
,它运行的内置命令type
的参数type
。
output: type is a shell builtin
输出:
type is a shell builtin
the part after -c
has to be one string. -c
之后的部分必须是一个字符串。 this will not work: ["bash", "-c", "type", "type"]
这将不起作用:
["bash", "-c", "type", "type"]
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.