Description: A blog that is unlike the Linux man pages - it actually explains the scenarios to use each command/app.
Initially a Linux command-line interface blog, it has evolved to cover increasingly more GUI app topics. Instead of just giving you information like some man page, I illustrate their usage in real-life scenarios.
My earlier post, Fun with Date Arithmetic shows how to use the date command to compute a future or past date that is a certain number of days ahead or in the past. This post expands on how you can manipulate dates on the Linux command-line interface using the cal and dateutils programs. These commands can give you results that GUI calendars can't.
While the date command works with the basic unit of days, say display the day that is 3 days from today, the cal command manipulates months, say display the month that is 2 months away. Running cal without any argument displays the calendar for the current month. $ cal July 2020 Su Mo Tu We Th Fr Sa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 While GUI calendar programs are well capable of displaying single month calendars, they are no match to the cal command for sim