cron-translate

Translate english to cron expressions

Usage

Install cron-translate

npm install --save cron-translate

const cronTranslate = require('cron-translate');

let cron = cronTranslate.toCron('every minute');

Syntax

cron-translate allows to use some fields and operators to compose the expressions that are translatable to cron expressions

Fields

The allowed fields are second, minute, hour, day, month, week day, or the plurals seconds, minutes, hours, days, months, week days.

Operators

• every operator may be used in three ways:
  • every <field>: sets the field value to *. e.g: every day;
  • every <value> <field>: sets the field value to */<value>. e.g: every 10 minutes;
  • every <field> <value>: sets the field value to <value>. e.g: every hour 2;
• on operator may be use as the every <field> value:
  • on <field> <value>: sets the field value to <value>. e.g: on hour 2;
• from to operator is used to create ranges.
  • from <field> <value1> to <value2>: It sets the field value <value1>-<value2>. e.g: from minute 2 to 10;

Values

The allowed values are:

• Numbers: for all fields.
• Names: for months and week days, full names and abreviations are allowed. e.g: monday and mon are the same.

Examples

Every usage

• every second is converted to * * * * * *;
• every minute is converted to 0 * * * * *;
• every hour is converted to 0 0 * * * *;
• every sunday is converted to 0 0 0 * * sunday;
• every january is converted to 0 0 0 * january *;
• every 2 minutes is converted to 0 */2 * * * *;
• every day 10 is converted to 0 0 0 10 * *;

On usage

• on minute 2 is converted to 0 2 * * * *;
• on sat is converted to 0 0 0 * * sat;

From to usage

• from minute 2 to 30 is converted to 0 2-30 * * * *;

Combining expressions

The expressions may be combined to create complex cron expresions:

• every 10 minutes from hour 2 to 8 is converted to 0 */10 2-8 * * *;
• every monday on hour 2 from minute 10 to 20 is converted to 0 10-20 2 * * monday;