As many as you want.
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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No, Unix certification is not required for all computer jobs, however it is useful to have some familiarity with Unix and all the different systems that computers run on. On top of that, you would also want to have a specialty in order to make more money.
Many versions of Unix can be run on microcomputers. Xenix, Solaris, Mac OS X, and IRIX all run on microcomputers.
Unix can be run on a variety of server, mainframe, and workstation devices.
unix.
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.
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.
Obviously. Unix is the original C platform. Also, the original A and B platform. :)
Most modern UNIX systems run as a 64-bit Operating System.
Yes.
By typing its name into the shell