You can use the 'at' command to schedule a job to run in the future (once), or use the 'crontab' command to schedule jobs to run periodically on a time and date basis. Look at the 'man' commands to see how the actual scheduling parameters are specified.
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As many as you want.
BG is a command on Unix and Unix-like operating systems to run a job(process) asynchronously in the background.
The cron facility of Unix allows periodic tasks to be started. You need to add a scheduler entry to cron (via crontab) in the form: minute hour dom month day-of-week So the entry: 0,15 3-5 * 12 0 /run/some/script would run the file /run/som/script on the hour and 15 minutes past the hour, from 3 - 5 a.m. every day of the month for December if the day is a Sunday.
Unix can be run on a variety of server, mainframe, and workstation devices.
unix.
Many versions of Unix can be run on microcomputers. Xenix, Solaris, Mac OS X, and IRIX all run on microcomputers.
Unix is not very popular with the general public. A more popular version is Linux. Around twenty percent tend to run on this system. Unix has competition also.
Depends on what you mean by a "job". You can compile a program.
By typing its name into the shell
Yes.
No O.o