bash: Add the DIFF environment variable

This allows to specify the diff tool for programs that accept an
alternative for it.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/.bashrc b/.bashrc
index 3886689..c844f04 100644
--- a/.bashrc
+++ b/.bashrc
@@ -67,6 +67,9 @@ if command -v fzf &>/dev/null; then
   eval "$(fzf --bash)"
 fi
 
+# Some tools allow me to use another diff tool by using this environment variable.
+export DIFF=difft
+
 ##
 # Editors & terminals.