config/shell: update dif & tr

.config/shell/functions

@@ -115,7 +115,6 @@ alias v='edit'
 
 alias lst='( last; last -f /var/log/wtmp.1 ) | grep -v "pts/" | tac | less +G'
 alias lar='last | tac'
-tr() { tree -a -L 2 --du -h -C "$@" | ${PAGER:-less} }
 
 alias browse-safe='sudo systemctl disable --now systemd-resolved && sudo rm -f /etc/resolv.conf && echo "nameserver 185.228.168.10" | sudo tee /etc/resolv.conf && sudo chattr +i /etc/resolv.conf'
 alias browse-unsafe='sudo chattr -i /etc/resolv.conf && sudo mv /etc/resolv.conf /etc/resolv.conf.bak && sudo systemctl enable --now systemd-resolved'

.local/bin/dif

@@ -1,3 +1,3 @@
 #!/bin/sh
 # diff with pagination
-diff --color=always "$@" | less --quit-if-one-screen
+diff --color=always -U 2 "$@" | less --quit-if-one-screen

.local/bin/trl

@@ -0,0 +1,2 @@
+#!/bin/sh
+tree -a -L 3 --du -h -C "$@" | ${PAGER:-less}