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Python os.tcsetpgrp() Method

The Python os.tcsetpgrp() method sets the process group ID associated with the terminal represented by a given file descriptor to an integer value. This file descriptor is obtained through the "os.open()" method.

NOTE: In operating systems like UNIX, each process belongs to a particular process group.

Following is the syntax for Python os.tcsetpgrp() method −

os.tcsetpgrp(fd, pg)

The Python os.tcsetpgrp() method accepts the below parameters −

• fd − This is the file descriptor.

• pg − This set the process group to pg.

The Python os.tcsetpgrp() method does not return any value.

The following example shows the usage of tcsetpgrp() method.

import os, sys

# Showing current directory 
print ("Current working dir :%s" %os.getcwd())

# Changing dir to /dev/tty
fd = os.open("/dev/tty",os.O_RDONLY)

f = os.tcgetpgrp(fd)

# Showing the process group
print ("the process group associated is: ")
print (f)

# Setting the process group
os.tcsetpgrp(fd,2672)
print ("done")

os.close(fd)
print ("Closed the file successfully!!")

When we run above program, it produces following result −

Current working dir is :/tmp
the process group associated is:
2672
done
Closed the file successfully!!

python_files_io.htm

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