Python系統命令操作

1、call

執行命令，返回狀態碼

ret = subprocess.call(['

ls', '
-l'], shell=false) 
ret = subprocess.call('
ls -l
', shell=true)

執行命令，如果執行狀態碼是0，則返回0，否則拋異常

subprocess.check_call(["

ls", "-l"
]) 
subprocess.check_call(
"exit 1
", shell=true)

執行命令，如果狀態是0，則返回執行結果，否則拋異常

subprocess.check_output(["

echo
", "
hello world !
"]) 
subprocess.check_output([
"exit 1
", shell=true])

引數：

案例：

import
subprocess
ret1 = subprocess.popen(["
mkdir
", "t1"
])ret2 = subprocess.popen("
mkdir t2
", shell=true)

輸入進行某環境，依賴在輸入，如：python

import

subprocess 
obj = subprocess.popen("
mkdir t3
", shell=true, cwd='
/home/dev
')

import

subprocess 
obj = subprocess.popen(["
python
"], stdin=dubprocess.pipe,stdout=subprocess.pipe,stderr=subprocess.pipe, universal_newlines=true) 
obj.stdin.write(
"print(1)\n
") 
obj.stdin.write(
"print(2)
") 
obj.stdin.close() 
cmd_out =obj.stdout.read() 
obj.stdout.close() 
cmd_error =obj.stderr.read() 
obj.stderr.close() 
print
(cmd_out) 
print(cmd_error)

import

subprocess 
obj = subprocess.popen(["
python
"], stdin=subprocess.pipe, stdout=subprocess.pipe, stderr=subprocess.pipe, universal_newlines=true) 
obj.stdin.write(
"print(1)\n
") 
obj.stdin.write(
"print(2)
") 
out_error_list =obj.communicate() 
print(out_error_list)

import

subprocess 
obj = subprocess.popen(["
python
"], stdin=subprocess.pipe, stdout=subprocess.pipe, stderr=subprocess.pipe, universal_newlines=true) 
out_error_list = obj.communicate('
print("hello")
') 
print(out_error_list)

import os

import subprocess
obj = subprocess.popen("
ifconfig
", shell=true, stdout =subprocess.pipe)
print(
"***************====")
print(obj.stdout.read().decode(
"utf-8"))
print(
"***************====
")

import

subprocess
def local_exec_shell_command(shell_command, is_shell=true):
"""@:param shell_comamnd
@:return exec_result(true or false) _stdout _stderr
"""try
: process =subprocess.popen(
shell_command,
shell=is_shell,
stdout=subprocess.pipe,
stderr=subprocess.pipe
)_stdout, _stderr =process.communicate()
if process.returncode !=0:
return
false, _stdout, _stderr
return
true, _stdout, _stderr
except
exception as e:
return false, ''
, str(e)
if__name__ == '
__main__':
data = local_exec_shell_command("
ifconfig")
print(data)

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