subprocess

问题 Ideally it should be like a list of commands that I want to execute and execute all of them using a single subprocess call. I was able to do something similar by storing all the commands as a shell script and calling that script using subprocess, but I want a pure python solution.I will be executing the commands with shell=True and yes I understand the risks. 回答1: Use semicolon to chain them if they're independent. For example, (Python 3) >>> import subprocess >>> result = subprocess.run(

问题 Ideally it should be like a list of commands that I want to execute and execute all of them using a single subprocess call. I was able to do something similar by storing all the commands as a shell script and calling that script using subprocess, but I want a pure python solution.I will be executing the commands with shell=True and yes I understand the risks. 回答1: Use semicolon to chain them if they're independent. For example, (Python 3) >>> import subprocess >>> result = subprocess.run(

问题 Ideally it should be like a list of commands that I want to execute and execute all of them using a single subprocess call. I was able to do something similar by storing all the commands as a shell script and calling that script using subprocess, but I want a pure python solution.I will be executing the commands with shell=True and yes I understand the risks. 回答1: Use semicolon to chain them if they're independent. For example, (Python 3) >>> import subprocess >>> result = subprocess.run(

问题 From the docs using Popen.wait() may: deadlock when using stdout=PIPE and/or stderr=PIPE and the child process generates enough output to a pipe such that it blocks waiting for the OS pipe buffer to accept more data. Use communicate() to avoid that. In communicate docs it's written that: The data read is buffered in memory, so do not use this method if the data size is large or unlimited How to reproduce such a problematic behavior and see that using Popen.communicate() fixes it? Deadlock

问题 This question is pure curiosity. It is easy to get a date by running the date command from bash, but it is an external executable and requires spawning a subprocess. I wondered whether it is possible to get the current time/date formatted without a subprocess. I could only find references to date/time formats in the context of PS1 and HISTTIMEFORMAT . The latter allows this: HISTTIMEFORMAT="%Y-%m-%d_%H:%M:%S " history -s echo x=$(history) set -- $x date="$2" This comes close, but the $

问题 i started learning ethical hacking from a udemy course.We were Taught how to change mac address by 2 methods of subprocess.call while the first one was successfull but the second method is giving me error and i am unable to understand it this is my code #! /usr/bin/python3.5 import subprocess interface = input("Enter Interface of Your Choice: ") mac_chg = input("Enter New Mac Address: ") print("[+]Changing Mac ADDRESS of " + interface + " to " + mac_chg) subprocess.call(["ifconfig", interface

问题 i started learning ethical hacking from a udemy course.We were Taught how to change mac address by 2 methods of subprocess.call while the first one was successfull but the second method is giving me error and i am unable to understand it this is my code #! /usr/bin/python3.5 import subprocess interface = input("Enter Interface of Your Choice: ") mac_chg = input("Enter New Mac Address: ") print("[+]Changing Mac ADDRESS of " + interface + " to " + mac_chg) subprocess.call(["ifconfig", interface

问题 I have been trying to implement a wrapper around subprocess as follows: def ans_cmd_stream_color(inputcmd): """Driver function for local ansible commands. Stream stdout to stdout and log file with color. Runs <inputcmd> via subprocess. Returns return code, stdout, stderr as dict. """ fullcmd = inputcmd create_debug('Enabling colorful ansible output.', LOGGER) create_info('Running command: ' + fullcmd, LOGGER, True) p = subprocess.Popen('export ANSIBLE_FORCE_COLOR=true; ' + fullcmd, stdout

问题 I have been trying to implement a wrapper around subprocess as follows: def ans_cmd_stream_color(inputcmd): """Driver function for local ansible commands. Stream stdout to stdout and log file with color. Runs <inputcmd> via subprocess. Returns return code, stdout, stderr as dict. """ fullcmd = inputcmd create_debug('Enabling colorful ansible output.', LOGGER) create_info('Running command: ' + fullcmd, LOGGER, True) p = subprocess.Popen('export ANSIBLE_FORCE_COLOR=true; ' + fullcmd, stdout

问题 I have been trying to implement a wrapper around subprocess as follows: def ans_cmd_stream_color(inputcmd): """Driver function for local ansible commands. Stream stdout to stdout and log file with color. Runs <inputcmd> via subprocess. Returns return code, stdout, stderr as dict. """ fullcmd = inputcmd create_debug('Enabling colorful ansible output.', LOGGER) create_info('Running command: ' + fullcmd, LOGGER, True) p = subprocess.Popen('export ANSIBLE_FORCE_COLOR=true; ' + fullcmd, stdout