Re: create variable with calculated number of spaces.

[Ray Andrews <rayandrews@xxxxxxxxxxx>]

On 2024-05-06 16:57, Lawrence Velázquez wrote:

> And if the spacing is just being added to the beginning or end of
> string1, then don't bother with the spacer variable:
>
> 	# Left-padded
> 	printf -v string1 '%*s' $#string2 $string1
>
> 	# Right-padded
> 	printf -v string1 '%-*s' $#string2 $string1
>     
    Gotta start using printf to cobble together complicated variables. 
    But in this case it's internal:
    
      % mnt
      
      Label:     Partition:    Mountpoint:  Size:    Free:    Used: 
      %Used:
      
      b6-12-Deb12b     sda6    /            11.7G     5.6G     5.5G   
      47%
      b3--0-aWorking   sda3    /aWorking   280.5M   157.2M   104.3M   
      37%
      b2--0-boot       sda2    /boot       188.2M   131.2M    43.0M   
      23%
      b8--6-root1      sda8    /root         5.8G     2.4G     3.1G   
      53%
      b11---aRay       sda11   /aRay        15.6G     6.2G     8.5G   
      55%
      b10-5-aMisc      sda10   /aMisc        4.8G     4.5G   121.1M    
      2%
      
      % mnt sda
      
      Label:     Partition:    Mountpoint:     Size:    Free:    Used: 
      %Used:
      
      b6-12-Deb12b     sda6    /               11.7G     5.6G    
      5.5G    47%
      b3--0-aWorking   sda3    /aWorking      280.5M   157.2M  
      104.3M    37%
      b2--0-boot       sda2    /boot          188.2M   131.2M   
      43.0M    23%
      b8--6-root1      sda8    /root            5.8G     2.4G    
      3.1G    53%
      b11---aRay       sda11   /aRay           15.6G     6.2G    
      8.5G    55%
      b10-5-aMisc      sda10   /aMisc           4.8G     4.5G  
      121.1M     2%
      b5-12-Deb11a     sda5    /media/sda/5    11.7G     4.2G    
      6.8G    58%
      b7-12-Deb12c     sda7    /media/sda/7    11.7G     5.6G    
      5.5G    47%
      b9--6-root2      sda9    /media/sda/9     5.8G     2.4G    
      3.1G    53%
      
      ... 'findmnt' outputs nice columns so the thing is to space the
      'title' line accordingly -- it's mostly the mountpoint who's width
      can vary so the spacer goes in there.  Purely cosmetic.
      
      
    
    
>