ref: c8c65f183d578690e0c14588f01f96115e2d5cdb
dir: /rc/bin/sysupdate/
#!/bin/rc rfork n cd / if(! test -d .hg) bind -ac /dist/plan9front / while(! ~ $#* 0){ switch($1){ case -i hg incoming case * echo usage: sysupdate '[-i]' >[1=2] exit usage } shift } hg -v pull -u