I'm very new to coding and software, so please stick with me. I am trying to execute a command in my Raspberry Pi terminal via a Python script. I want to be able to run this pi script from the Desktop. The command to execute is (rpi-deep-pantilt-env) pi@raspberrypi:~/rpi-deep-pantilt $ rpi-deep-pantilt detect So as you can see, I need to cd into rpi-deep-pantilt, then activate my virtual environment, then run the command all via the py script.
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user13930830
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Why? Usually if you want to do something so convoluted there's a simpler way. – Pranav Hosangadi Jul 31 '20 at 19:43
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A simple shell script to do what you ask:
#!/bin/sh
cd "$HOME"/rpi-deep-pantilt
. ./rpi-deep-pantilt-env/bin/activate
./rpi-deep-pantilt detect "$@"
Most or all of this is probably unnecessary. I guess you could run
#!/bin/sh
d="$HOME"/rpi-deep-pantilt
exec "$d"/rpi-deep-pantilt-env/bin/python "$d"/rpi-deep-pantilt detect "$@"
though if your Python script has hardcoded file paths which require it to run in a specific directory, that's a bug which will prevent this from working.
The "$@" says to pass on any command-line arguments, so if you saved this script as pant, running pant blind mice will pass on the arguments blind and mice to your Python script. (Of course, if it doesn't accept additional command-line arguments after detect, this is unimportant, but I'd still pass them on so you can generate an error message, rather than have them be ignored as if they were not there.)
tripleee
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I just run those two commands in my Desktop py script and that's it? – user13930830 Jul 31 '20 at 20:49
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That's not a Python script and there is no need to put it on the Desktop. Save it (ideally somewhere in your `PATH`) and `chmod +x` the file to make it executable; then you can run it by typing its path, like `./pant` or `/home/you/Desktop/pant` (if indeed you saved it in the `Desktop` directory and called it `pant`) or on some platforms by double-clicking its icon. See also https://stackoverflow.com/questions/8779951/how-do-i-run-a-shell-script-without-using-sh-or-bash-commands and perhaps [Difference between `./` and `~/`](https://stackoverflow.com/a/55342466/874188) – tripleee Aug 01 '20 at 08:13