====== Generally useful and important system stuff on unixoid systems ======

===== Calendar =====

e.g. on Debian the oldschool ''cal'' tool is not available at all. ''ncal'' is available via apt, but it behaves differently. Same as in cal, ncal starts weeks with sunday per default - with  ''-M'' you can can change this to mondays.

<WRAP group>

<WRAP column>
But it still looks differently:
<cli>
ncal -M
    February 2024     
Mo     5 12 19 26   
Tu     6 13 20 27   
We     7 14 21 28   
Th  1  8 15 22 29   
Fr  2  9 16 23      
Sa  3 10 17 24      
Su  4 11 18 25      
</cli>
</WRAP>

<WRAP column>
This can be changed by adding the ''-b'' option:
<cli>
ncal -bM
   February 2024      
Mo Tu We Th Fr Sa Su  
          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           
</cli>
</WRAP>

</WRAP>

<alert>The ''-b'' option also brings back the ability to print the a whole year, which is also not available without using this option.</alert>

===== Sudo =====

<code terminal>
Defaults umask = 0022
Defaults umask_override
</code>