I just learned about the UNIX column command, which takes text output and puts it into columns!

At least in my implementation, it uses tabs for output, so I also learned about the expand command that converts tabs into spaces!

This allows me to run

for i in 20220[89]*; do echo -n "${i//-*}: "; find $i -type f | wc -l; done | column | expand

in a directory that contains subdirectories like

20220801-12345
20220802-12345
...

and print out the date from the directory name plus the count of the number of files:

20220801: xxx   20220808: xxx   20220815: xxx
20220802: xxx   20220809: xxx   20220816: xxx
20220803: xxx   20220810: xxx   20220817: xxx
20220804: xxx   20220811: xxx   20220818: xxx
20220805: xxx   20220812: xxx   20220819: xxx
20220806: xxx   20220813: xxx   20220820: xxx
20220807: xxx   20220814: xxx   20220821: xxx