Swapping Control & Alt in Linux
More for my own reference and in preparation of me completely gutting my system, I'm posting the contents of my .xmodmaprc file which swaps the left control and alt-keys. This allows me to use my linux laptop more like I used my mac, with the command key. Many distributions now let you swap this from a setting but if yours doesn't here is how to go about it.
Feel free to copy the contents to a file called .xmodmaprc and run it using the xmodmap command:
remove Control = Control_L remove Mod1 = Alt_L keysym Control_L = Alt_L keysym Alt_L = Control_L add Control = Control_L add Mod1 = Alt_L
Note that with some modern Desktop Environments like Gnome 3, you can use the Gnome Tweaks package and have the DE handle this for you.