bin/jwm
@unexec if cmp -s %D/etc/system.jwmrc %D/etc/system.jwmrc.sample; then rm -f %D/etc/system.jwmrc; fi
etc/system.jwmrc.sample
@exec if [ ! -f %D/etc/system.jwmrc ]; then cp -p %D/etc/system.jwmrc.sample %D/etc/system.jwmrc; fi