What is the regex for cron expression (6-field quartz)?

The regex pattern for cron expression (6-field quartz) is `^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$`. This pattern validates 6-field quartz/spring cron expression with seconds.

How do I use this regex in JavaScript?

In JavaScript, create the regex with `const regex = /^(?:[0-9*,\/-]+\s+){5}[0-9*,\/?L#-]+$/;` and test with `regex.test(yourValue)`. It returns `true` if the value matches.

How do I use this regex in Python?

In Python, use `import re; re.match(r'^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$', value)`. The raw string prefix (`r`) prevents Python from interpreting backslashes as escape characters.

Is this regex case-sensitive?

By default, yes. To make it case-insensitive, add the `i` flag in JavaScript (`/^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$/i`) or use `re.IGNORECASE` in Python.

Regex for Cron Expression (6-field Quartz)

Regex Pattern

^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$

6-field Quartz/Spring cron expression with seconds

Quick Answer

The regex pattern for cron expression (6-field quartz) is `^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$`. 6-field Quartz/Spring cron expression with seconds. This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

Input	Result
0 0 12 * * ?	✓ Matches
/5 * * * *	✓ Matches
0 0 0 1 1 *	✓ Matches
* * * * *	✗ No match
invalid cron	✗ No match
* * * *	✗ No match

Code Examples

javascript

const regex = /^(?:[0-9*,\/-]+\s+){5}[0-9*,\/?L#-]+$/;
const isValid = regex.test(value);

python

import re
pattern = r'^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /^(?:[0-9*,/-]+\s+){5}[0-9*,/?L#-]+$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/^(?:[0-9*,\/-]+\s+){5}[0-9*,\/?L#-]+$/', $value)) {
    echo "valid";
}

java

String pattern = "^(?:[0-9*,/-]+\\s+){5}[0-9*,/?L#-]+$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

Related Regex Patterns

JavaScript Variable Name

Valid JavaScript variable/identifier name

Python Variable Name

Valid Python identifier name

CSS Class Name

Valid CSS class name (starts with letter, underscore, or hyphen)

CSS ID Selector

CSS ID selector starting with #

JSON Key

JSON object key (quoted string followed by colon)

Semantic Version (Strict)

Strict semantic versioning (MAJOR.MINOR.PATCH)