I learned today that HFS+ is a case preserving, case insensitive filesystem. HFS+ is the default filesystem on OS X. So, on my laptop:
$ touch test.txt TEST.txt
$ ls *.txt
test.txtSo, test.txt and TEST.txt (and TeSt.txt, ...) all refer to just one file. No wonder I could do open -a vlc instead of open -a VLC.

Most, if not all, astronomers use LaTeX to write their papers and other stuff. Recently I have been looking at various things that LaTeX and various packages can do ( Read more... )

Did you know that in sh, ksh and bash, the following are equivalent?

$ echo hi >test
$ >test echo hi
$ echo >test hi

I was reading The UNIX-HATERS Handbook a few days ago. It's funny in parts, and makes some valid points. I really liked the chapter on X-Window system.

The book is pretty old (published in 1994), and most of the comments about Unix don't apply for a current Unix/Linux distribution, but here's something funny that does:

Try logging in with all ( Read more... )