commands=['echo Hello','echo World','dir']forcommandincommands:subprocess.run(command,shell=True) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 代码注释 以下是对上面代码中使用的每条代码的注释: # 导入subprocess模块importsubprocess# 定义要执行的多条命令commands=['echo Hello','echo World','dir']...
preexec_fn: (POSIX only) An object to be called in the child process just before the child is executed. close_fds: Controls closing or inheriting of file descriptors. shell: If true, the command will be executed through the shell. cwd: Sets the current directory before the child is execu...
p= subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) processes.append(p)#获取每个命令的输出forpinprocesses: stdout, stderr=p.communicate()print(f"Command: {p.args}, Return Code: {p.returncode}")print("Stdout:", stdout.decode().strip())print("Stderr:", ...
Return output (stdout or stderr) of executing cmd in a shell.Like getstatusoutput(), except the exit status is ignored and the returnvalue is a string containing the command's outputcmd可以直接执行shell命令,而不需要cmd命令以列表输入---subprocess.getoutput("cat /proc/meminfo")返回值包含cmd的...
subprocess.CalledProcessError: Command 'exit 1' returned non-zero exit status 1 >>> 默认的,该函数会返回编码的字节。实际输出的编码可能依赖被调用的命令。 所以,对于输出text的解码经常需要在应用层处理。可通过设置universal_newlines 为True来覆盖编码行为。
一、os与commands模块 Python中提供了以下几个函数来帮助我们完成命令行指令的执行: 函数名 描述 os.system(command) 返回命令执行状态码,而将命令执行结果输出到屏幕 os.popen(command).read() 可以获取命令执行结果,但是无法获取命令执行状态码 commands.getstatusoutput(command) 返回一个元组(命令执行状态码,...
subprocess.CalledProcessError: Command 'exit 1' returned non-zero exit status 1 >>> 默认的,该函数会返回编码的字节。实际输出的编码可能依赖被调用的命令。所以,对于输出text的解码经常需要在应用层处理。可通过设置universal_newlines为True来覆盖编码行为。
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 540, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['ls', '-I']' returned non-zero exit status 1 ...
File "/usr/lib/python3.6/subprocess.py", line 418, in run output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '['./a.out']' returned non-zero exit status 3. 第三行是测试程序的标准输出。第四行到第八行是subprocess抛出的异常,其中第八...
#公众号:python 学习开发 #author:陈祥安 import subprocess try: subprocess.run(['false'], check=True) except subprocess.CalledProcessError as err: print('ERROR:', err) 运行结果 ERROR: Command '['false']' returned non-zero exit status 1. ...