A command-line tool that parses a cron string and expands each field to show the times at which it will run.

There are two ways to install Cron Info, either straight from RubyGems or from the repository.

gem install cron_info

Clone the repository:

git clone https://github.com/SebastianCoetzee/cron_info.git

Change into the directory:

cd cron_info

Build the gem:

gem build cron_info.gemspec

Install the gem (replace x with the version number of the gem):

gem install cron_info-x.x.x.gem

Run the tool with the following command, which parses a cron string and expands each field to show the times at which it will run:

cron_info "*/15" 0 1,15 "*" 1-5 /usr/bin/find

Output:

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

The command also supports named months and days:

cron_info "*/15,1,1-5,34-50" 0 1,15 Jan-Apr,Nov Mon,Thu-Sat echo hello

Output:

minute        0 1 2 3 4 5 15 30 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
hour          0
day of month  1 15
month         1 2 3 4 11
day of week   1 4 5 6
command       echo hello

After cloning the repository as explained above, from the root of the repository, run the following:

gem install bundler

Then install the dependencies:

bundle install

After the dependencies are installed, run the following command to run the test suite:

rspec

MIT