How to automatically add module to /etc/modules if it doesn't exist
#!/bin/bash
check_module() {
local module="$1"
if grep -Fxq "$module" /etc/modules
then
echo "$module already exists in /etc/modules"
else
echo "$module not found in /etc/modules. Adding it now..."
echo "$module" | sudo tee -a /etc/modules
fi
}
check_module "i2c-dev"
This script will at the module if it doesn’t exist in /etc/modules yet.
Note that it will only detect if exactly the same line as the argument to check_module
is already present in /etc/modules
. For example if i2c-dev option1=value1
is in /etc/modules
, the script will only detect this line correctly if you call it like
check_module "i2c-dev option1=value1"
but not if you call it like
check_module "i2c-dev"