Linux

Linux is the main operating system that we use. We believe it is also the best by orders of magnitude.

I have been a registered user since at least Mon Jan 19 19:12:20 MET 1998 as documented by the internet [1]. I would have been using the system one way or another for about a couple of years at this point. The post by Linus on comp.os.minix was on 25 August (1991) and v°1.0 is dated 14 March (1994), so I have actually been following this unique achievement of humanity's highest and most noble endeavor, from almost its start.

We have used proto-distributions and debian at a fairly early stage with some period through Knoppix for its outstanding material support, until converging onto kubuntu.

Installing linux is (usually) easy.

Directories

Besides the historical classics:

• bin
• etc
• tmp

we have our own hierachy of folders:

• admin — administration.
• bib — everything $\mathrm{\LaTeX}$ related.
• books — our virtual library.
• pics — our collection of pictures (photos).
• publi — our manuscripts (future publications).
• comp — computer code, scripts, etc.
• conf — conferences.
• data — data dumps, archives.
• gps — everything geolocation-related.
• scrap — ongoing stuff, little projects (such as our calendars), etc.

Modern Linux

Simple UNIX concepts from the past are more complex nowadays. One is the problem of permissions. The goold old owner/group/others model laussy:laussy 775 is not the whole story. Nowadays, Access Control Lists (ACLs) provide a more robust and cross-platform way to manage permissions. One may need to recourse to:

sudo setfacl -R -m u:laussy:rwx /var/www/html/laussywiki/extensions

in a case where standard user:group permissions do not work (for whatever reason). One can check with: getfacl /var/www/html/laussywiki/extensions.

Links

• http://en.wikipedia.org/wiki/Linux - still the best.
• 25 sick Linux commands.