I was writing a shell script and I wanted to change directory. But before I changed directory I wanted to get the absolute path to a file relative to the current directory so that I could access the file again later. I learned that you can do this in Bash with the readlink facility, passing in the -f command line switch, i.e.:
$ readlink -f ./some/path
Found a list of MySQL Encryption and Compression Functions today. Handy.
Am interested in getting procmail to work with my Postfix/Courier setup. Am using virtual domains/aliases/mailboxes stored in a MySQL database and a Maildir file system. Have only just begun my investigations. So far I’ve found:
Read about the security considerations for find. Find is a *nix tool for searching though directories for files and filtering them to build lists or run commands.
While I’m here I might as well show you my latest find command, I think it’s a beauty. :)
sudo find . \
\( \( \( \! -user jj5 \) -or \( \! -group jj5 \) \) \
-execdir chown jj5:jj5 '{}' \+ \) , \
\( \( -type d \( \! -perm -u+rwx \) \) \
-execdir chmod u+rwx '{}' \+ \) , \
\( \( -type f \( \! -perm -u+rw \) \) \
-execdir chmod u+rw '{}' \+ \)
Read My Understanding Of How UCE Actually Works which was a really helpful and enlightening article. (I saved a local copy.)
Also read Postfix Configuration – UCE Controls.
Reading about the Apache UseCanonicalName configuration directive. Don’t think I’ll be using it.
Reading about Apache Performance Tuning. Don’t get the feeling like I’ve learned any tricks that will make much difference.
Reading about HTTP Content Negotiation support in Apache.
Reading about the differences between /tmp and /var/tmp. Not sure I feel like I know more than I did when I started reading.