Defined DIFFPROG not valid for sudo

[cscs]

@JohnML

the only i can remember is ~/.bashrc

export DIFFPROG=meld

Then thats probably why.

~/.bashrc is only affecting your users bash prompt.

(and assuming you use bash at all)

@Wollie

I would add

DIFFPROG=/usr/bin/meld

to /etc/environment

Thats where I would put it too. No reason for this not to be global.

PS

Maybe you want to add some others there too. Like SUDO_EDITOR=/usr/bin/micro so you can use
sudoedit or sudo -e when you want to admin a file like a reasonable person.

PPS

I thought there was an environment variable intro somewhere. Had to dig deep.

[HowTo] Set Environment Variables

Ever seen mention of sudoedit? Ever wanted to use pacdiff with something other than vim -d ? We can use Environment Variables First lets understand how they work, the ways we can configure them, and what the differences are. The ArchWiki goes into detail here: https://wiki.archlinux.org/index.php/Environment_variables#Defining_variables Variables can be defined for each command we run. In the sudoedit example that means we can manually tell it to use our choice of editor by doing something …