regex101: PCRE (Legacy) Match Workspace

^start of line

ratethe literal text rate (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

1st Alternative1\s(?:hour|minute|day)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\sany whitespace character

Non-Capturing Group(?:hour|minute|day)

1st Alternativehour

hourthe literal text hour (case insensitive)

2nd Alternativeminute

minutethe literal text minute (case insensitive)

3rd Alternativeday

daythe literal text day (case insensitive)

2nd Alternative(?:[2-9]|[1-9][0-9]+)\s(?:hours|minutes|days)

Non-Capturing Group(?:[2-9]|[1-9][0-9]+)

1st Alternative[2-9]

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

2nd Alternative[1-9][0-9]+

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\sany whitespace character

Non-Capturing Group(?:hours|minutes|days)

1st Alternativehours

hoursthe literal text hours (case insensitive)

2nd Alternativeminutes

minutesthe literal text minutes (case insensitive)

3rd Alternativedays

daysthe literal text days (case insensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternativecron$\s*(?:\*|(?<minutes>0|[1-5]{0,1}[0-9]?)(?:(?:,(?P>minutes))*|(?:-(?P>minutes)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?:\*|(?<hours>0|[1]{0,1}[0-9]?|2[0-3])(?:(?:,(?P>hours))*|(?:-(?P>hours)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?:(?<qDays>\?)|\*(?<days>[1-2]{0,1}[1-9]?|31|10|20|30)(?:(?:,(?P>days))*|(?:-(?P>days)){0,1}(?:\/[[:digit:]]){0,1}|L|W))\s\s*(?:\*|(?<month>[1-9]|1[0-2])(?:(?:,(?P>month))*|(?:-(?P>month)){0,1}(?:\/[[:digit:]]){0,1})|(?<alphamonth>JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:,(?P>alphamonth))*|(?:-(?P>alphamonth)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?(<qDays>)(?:\*|(?<week>[1-7])(?:(?:,(?P>week))*|(?:-(?P>week)){0,1}(?:\/[[:digit:]]){0,1}|L|#[1-5])|(?<alphaweek>MON|TUE|WED|THU|FRI|SAT|SUN)(?:(?:,(?P>alphaweek))*|(?:-(?P>alphaweek)){0,1}(?:\/[[:digit:]]){0,1}))|\?)\s\s*(?:\*|(?<year>19[7-9][0-9]|2[0-1][0-9][0-9])(?:(?:,(?P>year))*|(?:-(?P>year)){0,1}(?:\/[[:digit:]]){0,1}))\s*$$

cronthe literal text cron (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:\*|(?<minutes>0|[1-5]{0,1}[0-9]?)(?:(?:,(?P>minutes))*|(?:-(?P>minutes)){0,1}(?:\/[[:digit:]]){0,1}))

1st Alternative\*

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

2nd Alternative(?<minutes>0|[1-5]{0,1}[0-9]?)(?:(?:,(?P>minutes))*|(?:-(?P>minutes)){0,1}(?:\/[[:digit:]]){0,1})

Group minutes(?<minutes>0|[1-5]{0,1}[0-9]?)

1st Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2nd Alternative[1-5]{0,1}[0-9]?

Character Class[1-5]{0,1}

Character Class[0-9]?

Non-Capturing Group(?:(?:,(?P>minutes))*|(?:-(?P>minutes)){0,1}(?:\/[[:digit:]]){0,1})

\sany whitespace character

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:\*|(?<hours>0|[1]{0,1}[0-9]?|2[0-3])(?:(?:,(?P>hours))*|(?:-(?P>hours)){0,1}(?:\/[[:digit:]]){0,1}))

\sany whitespace character

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:(?<qDays>\?)|\*(?<days>[1-2]{0,1}[1-9]?|31|10|20|30)(?:(?:,(?P>days))*|(?:-(?P>days)){0,1}(?:\/[[:digit:]]){0,1}|L|W))

\sany whitespace character

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:\*|(?<month>[1-9]|1[0-2])(?:(?:,(?P>month))*|(?:-(?P>month)){0,1}(?:\/[[:digit:]]){0,1})|(?<alphamonth>JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:,(?P>alphamonth))*|(?:-(?P>alphamonth)){0,1}(?:\/[[:digit:]]){0,1}))

\sany whitespace character

\s*any whitespace character, repeated any number of times

Condition(?(<qDays>)(?:\*|(?<week>[1-7])(?:(?:,(?P>week))*|(?:-(?P>week)){0,1}(?:\/[[:digit:]]){0,1}|L|#[1-5])|(?<alphaweek>MON|TUE|WED|THU|FRI|SAT|SUN)(?:(?:,(?P>alphaweek))*|(?:-(?P>alphaweek)){0,1}(?:\/[[:digit:]]){0,1}))|\?)

\sany whitespace character

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:\*|(?<year>19[7-9][0-9]|2[0-1][0-9][0-9])(?:(?:,(?P>year))*|(?:-(?P>year)){0,1}(?:\/[[:digit:]]){0,1}))

\s*any whitespace character, repeated any number of times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

$end of line

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

^rate\((?:1\s(?:hour|minute|day)|(?:[2-9]|[1-9][0-9]+)\s(?:hours|minutes|days))\)|cron\(\s*(?:\*|(?<minutes>0|[1-5]{0,1}[0-9]?)(?:(?:,(?P>minutes))*|(?:-(?P>minutes)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?:\*|(?<hours>0|[1]{0,1}[0-9]?|2[0-3])(?:(?:,(?P>hours))*|(?:-(?P>hours)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?:(?<qDays>\?)|\*(?<days>[1-2]{0,1}[1-9]?|31|10|20|30)(?:(?:,(?P>days))*|(?:-(?P>days)){0,1}(?:\/[[:digit:]]){0,1}|L|W))\s\s*(?:\*|(?<month>[1-9]|1[0-2])(?:(?:,(?P>month))*|(?:-(?P>month)){0,1}(?:\/[[:digit:]]){0,1})|(?<alphamonth>JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:,(?P>alphamonth))*|(?:-(?P>alphamonth)){0,1}(?:\/[[:digit:]]){0,1}))\s\s*(?(<qDays>)(?:\*|(?<week>[1-7])(?:(?:,(?P>week))*|(?:-(?P>week)){0,1}(?:\/[[:digit:]]){0,1}|L|#[1-5])|(?<alphaweek>MON|TUE|WED|THU|FRI|SAT|SUN)(?:(?:,(?P>alphaweek))*|(?:-(?P>alphaweek)){0,1}(?:\/[[:digit:]]){0,1}))|\?)\s\s*(?:\*|(?<year>19[7-9][0-9]|2[0-1][0-9][0-9])(?:(?:,(?P>year))*|(?:-(?P>year)){0,1}(?:\/[[:digit:]]){0,1}))\s*\)$

New

cron(0 10 * * ? *)
cron(* * * * ? *)
cron(0 18 ? * MON-FRI *)
cron(15 10 ? * 6L 2002-2005)
cron(5,35 14 * * ? *)
cron(0 8 ? * 1#4 *)
cron(0 10 * * ? *)
rate(1 minute)
rate(5 minutes)
rate(298 minutes)
rate(2 minute)
cron(0 10 * * * *)

Regular Expressions 101

Regular Expression

Substitution