Cron is a standard Unix utility that is used to schedule commands for automatic execution at specific intervals. This command line application parses a cron string and expands each field to show the times at which the command will run.

This is a maven project. The project is built using mvn clean install command. A jar named cron-parser-1.0.jar should be created in target/ folder.

Command used to run the application $ java -jar cron-parser-1.0.jar "<input_string>"

input_stringshould be passed in this format : [minute] [hour] [day of month] [month] [day of week] [command]

Example: */15 0 1,15 * 1-5 /usr/bin/find

Sample command to run the application

java -jar cron-parser-1.0.jar "*/15 0 1,15 * 1-5 /usr/bin/find"

Sample output of the application

minute        0 15 30 45
hour          0
day of month  1 15
month         1 2 3 4 5 6 7 8 9 10 11 12
day of week   1 2 3 4 5
command       /usr/bin/find