#!/nix/store/4nmqxajzaf60yjribkgvj5j54x9yvr1r-bash-5.1-p12/bin/sh

if [ -s /var/log/ppp.log ]; then
  exec tail "$@" /var/log/ppp.log
else
  exec grep ' \(pppd\|chat\)\[' /var/log/syslog | tail "$@"
fi
