Python os.tcgetpgrp () method
Python OS file / directory methods
Outline
Process os.tcgetpgrp () method is used to return the terminal fd (consisting os.open returned () open file descriptors) associated with the group.
grammar
tcgetpgrp () method syntax is as follows:
os.tcgetpgrp(fd)
parameter
fd - file descriptor.
return value
This method returns process group.
Examples
The following example demonstrates tcgetpgrp () method of use:
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os, sys
# 显示当前目录
print "当前目录 :%s" %os.getcwd()
# 修改目录到 /dev/tty
fd = os.open("/dev/tty",os.O_RDONLY)
f = os.tcgetpgrp(fd)
# 显示进程组
print "相关进程组: "
print f
os.close(fd)
print "关闭文件成功!!"
The above program output is:
当前目录 :/tmp 相关进程组: 2670 关闭文件成功!!