Dynamically generate arguments for python script input

Question

I call a python script with some command line arguments like:

python3 script.py --run 1 --filepath "this/file/dir"

I now try to parse the arguments from a config file with:

grep -v '^#' ${THIS_FILE_DIR}/model.conf | sed 's/=/ /' | xargs  -I% echo "--%"

This yields my desired string:

--run 1
--filepath this/file/dir

Is there a way to input this string dynamically into my python command, something along the lines of:

python3 script.py $(grep -v '^#' ${THIS_FILE_DIR}/model.conf | sed 's/=/ /' | xargs  -I% echo "--%")

Conf File for references

# vars
run=1
filepath=this/file/dir

Answer 1

you have multiple choices, since you already use sed, I would suggest

python3 script.py $(sed -e '/^#/d' -e 's/=/ /' -e 's/^/--/' ${THIS_FILE_DIR}/model.conf )

where

• use -e to specify multiple sed commands
• '/^#/d' delete lines starting with #
• 's/^/--/' replace start of line by --