Plan 9 from Bell Labs’s /usr/web/sources/contrib/nemo/root/sys/src/cmd/tags/updatetags
#!/bin/rc rfork ne 9fs planb bind -b /n/planb/386/bin /bin files=`{changes -fp 1m $home echo} if (~ $#files 0) exit '' mount -c /srv/$user.tagfs /mnt/tags || exit notags tagfiles /mnt/tags $files qhash -c $home/lib/$user.hash.db $files exit ''