This question already has answers here:
Get program execution time in the shell
(11 answers)
Closed 5 years ago.
I have bash shell script which is internally calling python script.I would like to know how long python is taking to execute.I am not allowed to do changes in python script.
Any leads would be helpful thanks in advance.
You can use the time command to get the runtime of the python script.
]$ cat time_test.bash
#!/bin/bash
# You can use: time python script.py
time python -c 'import os;os.getenv("HOME")'
Output will be something like this
]$ ./time_test.bash
real 0m0.010s
user 0m0.005s
sys 0m0.005s
Call the python script with /usr/bin/time script. This allows you to track CPU and wall-clock time of the script.
Related
This question already has answers here:
Execute multiple commands in Paramiko so that commands are affected by their predecessors
(2 answers)
Closed 2 years ago.
I want to run multiple commands with same shell.
Executing command of paramiko library is not with same shell.
Commands :
Ssh cloud-user#node -i /path/to/bcmt_rsa
Cat /etc/ssh/sshd_config
Change permitRootLogin yes to no
Restart sshd server
Log to file.
I am new in python. I have tried many ways but not working
Not clear questing but i have example lets say you want to edit file then read it
have variable
command="echo data >> path_to_file/filename.txt"
command+="cat path_to_file/filename.txt"
then execute ssh normal and read the stdout lines ,or you can use && in the command
like command="echo data >file_path.txt && cat file_path.txt"
Do you want to runultiple comand at a time in single sell?I think its not possible.But you can splot your terminal and can run differend comand in didferent partifion of a terminal.For this you can use Terminator,a great bash terminal.
Besides python is a single threded language.So you can not run multiple function same time in a script.Python will exicute function by function
This question already has answers here:
Run multiple python scripts concurrently
(10 answers)
Closed 4 years ago.
I was wondering if there is a way to run two python scripts at the same time through the command prompt.
I also am wondering if there is a way to run a second python script after another one has already been executed and is currently running.
Thanks
To execute 2 script at the same time, execute python script1.py & python script2.py
To execute one after the other (without waiting for the first one to finish), you could simply open 2 command prompt windows. Execute each script in each window.
To execute one after the other (after waiting for the first one to finish successfully), execute python script1.py && python script2.py
This question already has answers here:
Running bash script from within python
(7 answers)
Closed 5 years ago.
I am trying to run bash script.sh file in Python.
I tried running it through following code:
subprocess.call("script.sh", shell=True)
but it runs the script outside python and asks Windows application to run this file.
I want this script.sh to be run in Python command line.
I want Python to run this script.
Import the library OS and then use os.system:
import os
os.system('bash')
This question already has answers here:
What is the Python equivalent of `set -x` in shell?
(4 answers)
Closed 5 years ago.
I'd like to run my python script in such a way that every line is printed as it is executed (for debugging purposes), like how you can add set -x to a bash script. Is this possible? If not, what other strategies are there for debugging python that don't involve adding log lines everywhere? I usually use pdb but this isn't always suitable for time sensitive applications eg networking.
Use the trace module.
$ python -m trace -t myscript.py | grep myscript.py
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