Shell script to update a yaml configuration using sed

update_token.sh

echo "Replacing FB Access Token"
echo "--------------------\n"

# Displaying old value for reference
echo "### Old configuration"
grep '  access_token:' config.yml

echo "### New configuration"
echo "  access_token: \"$1\""
sed -i "" "s/^\s+access_token: .*$/  access_token: \"${1}\"/" config.yml

echo "\nDone.\n"

This is a shell script to update yaml configuration using sed tool.
It's replacing value of access_token in config.yml in current directory as example.
The configuration key and file path should be adjusted according to your scenario.

How to use

sh update_token.sh the-new-token-to-set

Can it be done without providing any input argument and the set value would be embedded?

could you please share the config.yml file for reference