clear the mac os 10.x dns cache
dscacheutil -flushcache flushes a mac os x machine’s dns cache, forcing it to pick up new info from the servers. »
building kernels and booting ppc linux with yaboot
don’t forget that ppc linux systems use /usr/src/linux/vmlinux to boot. don’t forget to run ybin -v after editing /etc/yaboot.conf. »
sending mail from a file
cat email.txt | sendmail <recipient>@<domain> the email.txt file should contain just the headers, not the smtp conversation. a nice change »
cleaning up rsynced ntfs mount windows data backups
find . -name 'Thumbs.d*' -print0 | xargs -0 -p rm Clean up old windows thumbnails on migrated windows data. Also takes care of Thumbs.db:encryptable: »
getting size of users' spam mailboxes in a cyrus mailstore
find /path/to/mail/store/ -mindepth 4 -maxdepth 4 -type d \ |fgrep spam |xargs -i du -s {} \ |awk '{print $1$2}' |awk -F/ '{ »