Linux Bash Scripting: How to create directories for each day of the current month

 In this post I have written a script that creates an empty directory for each day of the current month. I used cal command to get the date and month instead of using date command. The reason is that the date command does not work in Solaris. To make it portable, I have used cal command.

The below script does the following

• It takes the total number of days of the current month 
• It gets the current month name from the cal command
• It gets the current year from the cal command
• It creates an empty directory for each day of the current month
• Before creating, this checks whether the directory already exists, if yes, the script exits by displaying a message.

#!/bin/bash days=`echo $(cal) | tail -c 3` month=`echo $(cal) | head -c 3` year=`echo $(cal) | cut -d' ' -f2` for day in `seq $days` do folname=$day$month$year echo $folname if [ -d dir/$folname ] then echo "directory $folname already exists" exit else mkdir -p "dir/$folname" fi done

You can change the "dir" to the directory in which you want the folders to be created.