Python System Calls: Difference between revisions
Jump to navigation
Jump to search
Created page with '== Backquotes == <source lang="python"> output = `dmesg | grep hda` </source> == os.popen == <source lang="python"> import os cmd = "medcon -f %s" % fileName output = os.popen(c…' |
|||
| Line 20: | Line 20: | ||
for line in output: | for line in output: | ||
#do something with line | #do something with line | ||
</source> | |||
An example | |||
<source lang="python"> | |||
command = "list5 12345" | |||
p = subprocess.Popen(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE) | |||
(output, error) = p.communicate('s') # 's' tells it to stop | |||
</source> | </source> | ||
Revision as of 20:15, 14 September 2011
Backquotes
output = `dmesg | grep hda`
os.popen
import os
cmd = "medcon -f %s" % fileName
output = os.popen(cmd)
for line in output:
#do something with line
subprocess module (Python 2.4+)
from subprocess import *
cmd = "medcon -f %s" % fileName
output = Popen(cmd, shell=True, bufsize=512, stdout=PIPE).stdout
for line in output:
#do something with line
An example
command = "list5 12345"
p = subprocess.Popen(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
(output, error) = p.communicate('s') # 's' tells it to stop
The os.shutil module
Used for copying, moving, and deleting files and directories:
os.listdir(path)