A review of InfoMagic's December 1994 Release
You can find everything you need, whether you're using or installing Linux for the first time or you know the ropes like a veteran. For the proto-Linuxer, the distribution comes complete with a 28-page, CD-sized, Quick Start Guide which is based on Matt Welsh's Linux Installation HOWTO. The three CD-ROMs are packed full of up-to-date Linux distributions, documentation, source code and even a “live” file system you can run your system from. The aptly named “Developer's Resource” is a great value.
InfoMagic delivers three CD-ROMs full of Linux and Linux-related software with their latest offering, the December-pressed Linux Developer's Resource.
The first disc comprises the on-line documentation (HOWTOs), DOS utilities, and InfoMagic's large collection of Linux distributions. They provide JE-0.9.3 (Japanese Extensions to Linux), MCC-1.0+, Slackware-2.1.0, SLS-1.06, TAMU-1.0D, and BOGUS-1.0.1. Some of these distributions aren't as up-to-date as others, particularly the smaller ones such as MCC and TAMU, but that is simply because they haven't been updated recently, not because InfoMagic is shipping stale software. Other directories on this disc contain a DOS-based installation program and a copy of Microsoft's Multimedia Viewer with the HOWTOs compiled just for it.
On the second disc you'll find mirrors of the SunSite Linux FTP archive (ftp://sunsite.unc.edu/pub/Linux), Alan Cox's Linux networking archive (ftp://sunacm.swan.ac.uk/pub/misc/Linux/Networking), and the “live” file system, which is a fully unpacked copy of the Slackware 2.1.0 distribution. In theory, and with a suitably fast CD-ROM drive, you should be able to run off of the “live” file system on this disc and a small root partition on your hard drive. Since InfoMagic can't know which packages you wish to use from the CD, it is up to you to set up the “link farm” on your root partition which points to directories on the disc (i.e. ln -s /cdrom/live/usr/local /usr/local ).
The last disc contains copies of the tsx-11 Linux FTP archive (ftp://tsx-11.mit.edu/pub/linux), the official Linux kernel archive up to and including kernel version 1.1.72 (ftp://ftp.cs.helsinki.fi/pub/Software/Linux/Kernel) and the Free Software Foundation FTP archive (ftp://prep.ai.mit.edu/pub/gnu). To avoid keeping redundant copies of the XFree86 X Window System with both the tsx-11 and SunSite directories, InfoMagic has chosen to split this large component out into its own directory. Releases 2.1.0, 2.1.1, and 3.1 are available.
Also on the last disc are the Debian-0.91 distribution; Japanese HOWTO documents; the Wine Microsoft Windows emulator archive; a Scheme interpreter; and the Oberon system, an object oriented programming and operating environment. There are also some demos of commercial products: the Unix Cockpit, an X-based file manager and Executor, a Macintosh emulator which runs under Linux (or doesn't - Executor doesn't seem to work under 1.1.x Linux kernels, which prevented me from testing it). There is also FlagShip, a CA/Clipper-like development system, and a self-described “early demo” of a commercial BBS system for Linux, called Zbbs.
This distribution has everything you need, whether you're installing Linux for the first time or you know the ropes like a veteran and want to update your system. There's plenty of documentation in all sorts of formats, from the easily printed to the easily browsed. The handy Quick Start Guide is an excellent primer for the novice Linux user. It covers such important topics as device naming, drive partitioning, and file system creation. When coupled with InfoMagic's wide array of Linux distributions, you've got everything you need to install Linux on your PC.
I find that distributions like this make for excellent emergency backup media. They contain recent copies of all of the major Linux distributions (pick your favorite) as well as more recent stuff which you can cull from the Linux and GNU sources on discs 2 and 3 and compile for yourself. If you're interested at all in Unix or are a code junkie like myself, this is the package for you.
I've been using Linux for about two years and have it installed on my PC at home. I've got two hard drives on my system, an IDE drive where I keep all of my DOS and Windows stuff, and a larger SCSI drive that I use for Linux. To test drive the Developer's Resource, I decided that I'd clear out two non-essential partitions from my Linux disk and install a couple of different distributions in their stead. I backed up the old partitions with my tape drive and got down to work.
I had enough room for a single 185 MB partition on which I could install a distribution. With this amount of disk space I knew I could install plenty of software, but I'd need to pick and choose to some degree because the distributions I was looking at are pretty large.
Because I'd tried it once before with an earlier InfoMagic release, I decided to first install Slackware on my newly-unified ext2fs partition. I figured I'd probably be able to get a full system up and running in an hour or so. I wasn't disappointed. I was able to put together a boot/rootdisk combination for my system in about five or ten minutes, most of this time taken up by the writing of the disk images to floppies. I popped in the boot floppy, rebooted, and got down to business. Using the colortty rootdisk, I was greeted with nice looking color dialog boxes which make the installation procedure look very professional.
Slackware's setup routine found the existing swap and ext2fs file systems on my SCSI hard drive. I told it to ignore the ones I didn't want to touch (the /, /usr, and /usr/local of my pre-existing system) and to use the new partition I had set up as its root file system. My MS-DOS file systems were also found and I added these to the file system table without a hitch, even though I wanted them mounted as /dos/c , /dos/d , and /dos/e which is a bit out of the ordinary.
I then installed all of the packages I was interested in (just about all of them) and rebooted. My system came up right away and I was able to log in as root and add myself as a user to the system. One thing I noticed after the installation was that my new partition was almost completely full. I installed almost every package in the Slackware distribution and was left with something shy of 10 MB free space on my 185 MB partition. A minimal installation - no TeX, games, etc.—would be a good deal smaller, but 185 MB is obviously not quite enough room for the whole of Slackware to fit comfortably.
One minor complaint I have about Slackware is its treatment of manual pages. They are stored in compressed, pre-formatted form (i.e. in /var/catman instead of /usr/man ), which saves disk space but limits your flexibility. I like having the manual page sources around, so I can format the output for viewing on a terminal, or an X display, or turn them into DVI or PostScript files. With only the pre-formatted pages at your disposal, you're stuck with ASCII (or ISO-8859-1) and a baroque system whereby underlining is denoted by a combination of underscores and backspaces interspersed between the characters. Yuck. Because this installation went so easily and was so trouble-free for me, I thought I should try out some other distributions and compare them to what I felt was an extremely polished and professional Slackware release. I didn't run it for long, since I wanted to check out BOGUS too.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
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