I want to invoke a specific command shell in python to execute some scripts. For exemple, in R, I use: system2(os_shell = “C:/Program Files (x86)/pgAdmin III/1.18/pg_dump.exe”, args = “very long argument”) Thanks to this code, I can backup my Postgresql’s tables with a for loop. …
Tag: shell
Change “conda activate” command in terminal? [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question Can I change the command conda activate env_name to activate the environment? Instead, I want…
Make python3 as my default python on Mac for Fish shell
Every time I type python into the console it uses Python 2.7. I would like it to use the latest version (I have it installed), Python 3.9. How do I do this using the fish shell (other StackOverFlow talks about for bash)? Answer First, look where it is installed : note the line which ends with python3.9 withou…
what is the Java equivalent of Pythons’s subprocess shell=True property?
I’ve been using python for a long time. python’s system and subprocess methods can take shell=True attibute to spawn an intermediate process setting up env vars. before the command runs. I’ve be using Java back and forth and using Runtime.exec() to execute shell command. I find difficulty to…
Run python command inside a bash script and get the result
I would like to run a python command that return true or false inside a bash script: The code above is just to sketch the idea. I need boolean to be false or true (bash boolean values) depending on the result of …operations…. The code above is not working: boolean results to be an empty variable. …
python: subprocess returns nothing when running scripts which take longer time
Beginner here with subrpocess problem: The below line works fine when I run both the scripts with less data which takes around 10-20minutes, however with bigger data to be processed the subprocess returns nothing once both the scripts are completed (lets say in an hour). Also: Often with lesser data, it behav…
python3.7 subprocess failed to delete files for me
I have a python script using ‘subprocess’ running linux command to confirm my task is doing the right thing, and it worked well. But i found that at the same time it will generate some log files when running my task. So i added a clean up function to rm log files for me at the beginning. My script…
Detect whether current shell is powershell in python
What’s the recommended way to check which shell is my python program running inside? I know I can query os.environ.get(‘SHELL’) for the shell name, but what can I use to determine powershell? Answer Generally, environment variable SHELL does not tell you what shell invoked your script, it on…
Python code for finding top 5 processes using cpu
I am new to python and I have a simple problem of finding the top processes using the CPU. I was able to do it in shell using ps and sort. I have checked few but links but it do not help partly because the function is defined as below, ps_input will be something like below, Can someone help me
Cronjob on Ubuntu Mate for Raspberry stops right after execution
I use a RaspberryPi 3 with UbuntuMate 16.04. On it, I want to start a little Python (3.5) program every midnight. For that I call a little shell script, so that I can change into the wanted directory comfortably. crontab: start.sh (yes, it’s executable): Now if I execute the programm or script from the …