This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Closed 6 years ago.
How can I use command line tools like ls, grep from python.
This is done with subprocess
import subprocess
subprocess.call("ls", shell=True)
You can use the package getopt to use command line arguments with your python code.
There is also a more advanced module called argparse that is easier to code in and provides more help and helpful error messages.
I think if you import os and do os.system(command) that can execute commands.
import os
os.system("your command here")
Related
This question already has answers here:
Actual meaning of 'shell=True' in subprocess
(7 answers)
Closed 4 months ago.
I would like to open a windows application by using python subprocess, I can open the application in shell by command: start "C:\Windows\notepad.exe", however when I try to use subprocess it gives FileNotFoundError, I tired:
subprocess.run(['start', '"C:\\Windows\\notepad.exe"'])
subprocess.run(['start', "C:\\Windows\\notepad.exe"])
subprocess.run(['start', "C:\Windows\notepad.exe"])
Thanks in advance.
I just check another related thread (python subprocess Popen environment PATH?).
EDIT:Subprocess with default options uses Shell=False, you need the Shell because you invoke a shell program.
From docs.python.org :
On Windows with shell=True, the COMSPEC environment variable specifies
the default shell. The only time you need to specify shell=True on
Windows is when the command you wish to execute is built into the
shell (e.g. dir or copy). You do not need shell=True to run a batch
file or console-based executable.
I tested without start and adding Shell=True and both seem to work.
1st option:
import subprocess
subprocess.run(['C:/Windows/notepad.exe'])
2nd option:
import subprocess
subprocess.run(['start', 'C:/Windows/notepad.exe'], shell=True)
Output:
This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Closed 3 years ago.
I want to launch a external program like notepad.exe using python. I want to have a script that just runs Notepad.exe.
It's really simple with Python's builtin os module.
This will start Microsoft Notepad:
import os
# can be called without the filepath, because notepad is added to your PATH
os.system('notepad.exe')
Or if you want to launch any other program just use:
import os
# r for raw-string, so don't have to escape backslashes
os.system(r'path\to\program\here\program.exe')
Would recommend the subprocess module. Just build up a list of arguments like you would run in the terminal or command line if you are on windows then run it.
import subprocess
args = ['path\to\program\here\program.exe']
subprocess.call(args)
Check out the docs here for all of the other process management functionality.
this can be done using Python OS. Please see the code below for an example.
import os
os.startfile('test.txt')
Startfile will execute the program associated with the file extension.
This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Closed 4 years ago.
Hi I would like to write a python script so that if i run that script it should open couple of applications and run some commands in console.Can any one guide me through it. Like example scripts and location to place it etc .
P.S: I use Ubuntu as 17 as my OS.
Thankyou
You can use os.open command to run any script within python script it will run as it would in a command line, for example:
import os
os.open("echo 7")
#this will print 7 on the terminal when you run the script
If in case you want to capture output of a script you run and use it in the script then I suggest you use os.popen, for example:
import os
var=os.popen("cat /path/to/file")
print(var)
#this will print the file content
So in short anything that goes in os.open("here") will run as it would in a command line or terminal of your os.
If you want to run applications you will have to sub subprocess:
import subprocess
subprocess.call("spyder")
Alternatively you can use popen as well to open files:
import os
os.popen("spyder or subl")
os.open will not work. In regards to your specific request use the following code:
import os
os.popen("cd /home/mypc/path ; subl")
You can use the os library to execute system commands
import os
os.system("your command")
you can add your wanted application to the system path to be able to execute it using system commands
This question already has answers here:
Automatically execute commands on launching python shell
(2 answers)
Closed 9 years ago.
I often used python as a library and it could save me some time if I could use an alias to launch python and tell him to load the math module at the same time (ideally in the same way as from math import *) Is there a command line argument for that?
It doesn't look like much but that would save me from doing something really repetitive. Thank you.
One way of doing this on the command line is using the -c (execute command) and -i (run interactively after executing script/command) options.
$ python -i -c 'from math import *'
>>> sin(pi/2)
1.0
This question already has answers here:
How do I execute a program or call a system command?
(65 answers)
Closed 9 years ago.
I need to run an rsync command from Python. Is this possible and if so, how do I do it?
rsync -Ccavz --delete DJStatic username#website
You can call a subprocess from python using the following snippet
import subprocess
subprocess.call(["ls", "-l"])
In your case, it would be something like this
subprocess.call(["rsync", "-Ccavz", "--delete","DJStatic", "username#website"])
See here for more details.