Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
Processing...

Test String

Code Generator

Language

Generated Code

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String[] args) { final String regex = "(?=^\\s+Drive\\s+at\\s+Enclosure\\s+(\\d+),\\s+Slot\\s+(\\d+)).*(Status)\\s?+:(.*)$"; final String string = "DRIVES------------------------------\n\n" + "SUMMARY\n" + " Number of drives: 96\n" + " Current media type(s): Hard Disk Drive (96)\n" + " Current interface type(s): Fibre (96)\n\n" + " BASIC:\n\n" + " ENCLOSURE, SLOT STATUS CAPACITY MEDIA TYPE INTERFACE TYPE CURRENT DATA RATE PRODUCT ID FIRMWARE VERSION CAPABILITIES \n" + " 0, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 3 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH00 \n" + " 0, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 0, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 0, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH00 \n" + " 1, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 3 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A2 \n" + " 1, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 1, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 1, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 1, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 1, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 3 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 2, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH00 \n" + " 2, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 2, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 3 Impending failure (reported by drive) 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 3, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 3, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 4, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 3 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 4, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 5, 1 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 2 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 3 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 4 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps HUS1560600FC F JH02 \n" + " 5, 5 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 6 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A2 \n" + " 5, 7 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 8 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 9 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 10 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 11 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 12 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 13 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 14 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 15 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n" + " 5, 16 Optimal 558.912 GB Hard Disk Drive Fibre 4 Gbps ST3600057FC F B9A4 \n\n" + " DRIVE CHANNELS:\n\n" + " ENCLOSURE, SLOT PREFERRED CHANNEL REDUNDANT CHANNEL \n" + " 0, 1 1 5 \n" + " 0, 2 5 1 \n" + " 0, 3 1 5 \n" + " 0, 4 5 1 \n" + " 0, 5 1 5 \n" + " 0, 6 5 1 \n" + " 0, 7 1 5 \n" + " 0, 8 5 1 \n" + " 0, 9 1 5 \n" + " 0, 10 5 1 \n" + " 0, 11 1 5 \n" + " 0, 12 5 1 \n" + " 0, 13 1 5 \n" + " 0, 14 5 1 \n" + " 0, 15 1 5 \n" + " 0, 16 5 1 \n" + " 1, 1 1 5 \n" + " 1, 2 5 1 \n" + " 1, 3 1 5 \n" + " 1, 4 5 1 \n" + " 1, 5 1 5 \n" + " 1, 6 5 1 \n" + " 1, 7 1 5 \n" + " 1, 8 5 1 \n" + " 1, 9 1 5 \n" + " 1, 10 5 1 \n" + " 1, 11 1 5 \n" + " 1, 12 5 1 \n" + " 1, 13 1 5 \n" + " 1, 14 5 1 \n" + " 1, 15 1 5 \n" + " 1, 16 5 1 \n" + " 2, 1 2 6 \n" + " 2, 2 6 2 \n" + " 2, 3 2 6 \n" + " 2, 4 6 2 \n" + " 2, 5 2 6 \n" + " 2, 6 6 2 \n" + " 2, 7 2 6 \n" + " 2, 8 6 2 \n" + " 2, 9 2 6 \n" + " 2, 10 6 2 \n" + " 2, 11 2 6 \n" + " 2, 12 6 2 \n" + " 2, 13 2 6 \n" + " 2, 14 6 2 \n" + " 2, 15 2 6 \n" + " 2, 16 6 2 \n" + " 3, 1 2 6 \n" + " 3, 2 6 2 \n" + " 3, 3 2 6 \n" + " 3, 4 6 2 \n" + " 3, 5 2 6 \n" + " 3, 6 6 2 \n" + " 3, 7 2 6 \n" + " 3, 8 6 2 \n" + " 3, 9 2 6 \n" + " 3, 10 6 2 \n" + " 3, 11 2 6 \n" + " 3, 12 6 2 \n" + " 3, 13 2 6 \n" + " 3, 14 6 2 \n" + " 3, 15 2 6 \n" + " 3, 16 6 2 \n" + " 4, 1 3 7 \n" + " 4, 2 7 3 \n" + " 4, 3 3 7 \n" + " 4, 4 7 3 \n" + " 4, 5 3 7 \n" + " 4, 6 7 3 \n" + " 4, 7 3 7 \n" + " 4, 8 7 3 \n" + " 4, 9 3 7 \n" + " 4, 10 7 3 \n" + " 4, 11 3 7 \n" + " 4, 12 7 3 \n" + " 4, 13 3 7 \n" + " 4, 14 7 3 \n" + " 4, 15 3 7 \n" + " 4, 16 7 3 \n" + " 5, 1 4 8 \n" + " 5, 2 8 4 \n" + " 5, 3 4 8 \n" + " 5, 4 8 4 \n" + " 5, 5 4 8 \n" + " 5, 6 8 4 \n" + " 5, 7 4 8 \n" + " 5, 8 8 4 \n" + " 5, 9 4 8 \n" + " 5, 10 8 4 \n" + " 5, 11 4 8 \n" + " 5, 12 8 4 \n" + " 5, 13 4 8 \n" + " 5, 14 8 4 \n" + " 5, 15 4 8 \n" + " 5, 16 8 4 \n\n\n" + "HOT SPARE COVERAGE:\n" + " The following arrays are not protected: None - All arrays are protected\n" + " Total hot spare drives: 3\n\n" + " Standby: 3 \n" + " In use: 0 \n\n" + " Standby drive at enclosure 5, slot 16 (Fibre, 558.912 GB)\n" + " Protects the following arrays: RG3, RG1, RG2, RG4, RG5, RG6, RG7, RG8\n\n" + " Standby drive at enclosure 2, slot 11 (Fibre, 558.912 GB)\n" + " Protects the following arrays: RG3, RG1, RG2, RG4, RG5, RG6, RG7, RG8\n\n" + " Standby drive at enclosure 1, slot 16 (Fibre, 558.912 GB)\n" + " Protects the following arrays: RG3, RG1, RG2, RG4, RG5, RG6, RG7, RG8\n\n\n" + " DETAILS\n" + " Drive at Enclosure 0, Slot 1\n" + " \n\n" + " Status: Optimal \n" + " \n" + " Mode: Assigned \n" + " Raw capacity: 558.912 GB \n" + " Usable capacity: 558.412 GB \n" + " World-wide identifier: 20:00:b4:52:53:57:b6:25:00:00:00:00:00:00:00:00 \n" + " Associated array: RG1 \n\n\n" + " Port Channel ID \n" + " 0 1 0/0xEF \n" + " 1 5 0/0xEF \n\n\n" + " Media type: Hard Disk Drive \n" + " Interface type: Fibre Channel \n" + " Drive path redundancy: OK \n" + " \n" + " \n" + " Security Capable: No \n" + " Secure: No \n" + " Read/write accessible: Yes \n" + " Drive security key identifier: Not Applicable \n" + " \n" + " Speed: 15,000 RPM \n" + " Current data rate: 4 Gbps \n" + " Product ID: ST3600057FC F \n" + " Drive Firmware Version: B9A4 \n" + " Serial number: 6SL1BP4T0000B147KZ7T \n" + " Manufacturer: IBM-SSG \n" + " Date of manufacture: 2011 Jul 4 \n\n" + " Drive at Enclosure 0, Slot 2\n" + " \n\n" + " Status: Optimal \n" + " \n" + " Mode: Assigned \n" + " Raw capacity: 558.912 GB \n" + " Usable capacity: 558.412 GB \n" + " World-wide identifier: 20:00:b4:52:53:ab:ae:74:00:00:00:00:00:00:00:00 \n" + " Associated array: RG1 \n\n\n" + " Port Channel ID \n" + " 0 5 1/0xE8 \n" + " 1 1 1/0xE8 \n\n\n" + " Media type: Hard Disk Drive \n" + " Interface type: Fibre Channel \n" + " Drive path redundancy: OK \n" + " \n" + " \n" + " Security Capable: No \n" + " Secure: No \n" + " Read/write accessible: Yes \n" + " Drive security key identifier: Not Applicable \n" + " \n" + " Speed: 15,000 RPM \n" + " Current data rate: 4 Gbps \n" + " Product ID: ST3600057FC F \n" + " Drive Firmware Version: B9A4 \n" + " Serial number: 6SL7YS8L0000B4250CDP \n" + " Manufacturer: IBM-SSG \n" + " Date of manufacture: 2014 Feb 10 \n\n" + " Drive at Enclosure 0, Slot 3\n" + " \n\n" + " Status: Optimal \n" + " \n" + " Mode: Assigned \n" + " Raw capacity: 558.912 GB \n" + " Usable capacity: 558.412 GB \n" + " World-wide identifier: 20:00:b4:52:53:5a:35:0d:00:00:00:00:00:00:00:00 \n" + " Associated array: RG1 \n\n\n" + " Port Channel ID \n" + " 0 1 2/0xE4 \n" + " 1 5 2/0xE4 \n\n\n" + " Media type: Hard Disk Drive \n" + " Interface type: Fibre Channel \n" + " Drive path redundancy: OK \n" + " \n" + " \n" + " Security Capable: No \n" + " Secure: No \n" + " Read/write accessible: Yes \n" + " Drive security key identifier: Not Applicable \n" + " \n" + " Speed: 15,000 RPM \n" + " Current data rate: 4 Gbps \n" + " Product ID: ST3600057FC F \n" + " Drive Firmware Version: B9A4 \n" + " Serial number: 6SL1HTM50000B148Q5BN \n" + " Manufacturer: IBM-SSG \n" + " Date of manufacture: 2011 Jul 16 \n\n" + " Drive at Enclosure 0, Slot 4\n" + " \n\n" + " Status: Optimal \n" + " \n" + " Mode: Assigned \n" + " Raw capacity: 558.912 GB \n" + " Usable capacity: 558.412 GB \n" + " World-wide identifier: 20:00:b4:52:53:57:b5:db:00:00:00:00:00:00:00:00 "; final Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CHARACTER_CLASS | Pattern.MULTILINE | Pattern.DOTALL); final Matcher matcher = pattern.matcher(string); while (matcher.find()) { System.out.println("Full match: " + matcher.group(0)); for (int i = 1; i <= matcher.groupCount(); i++) { System.out.println("Group " + i + ": " + matcher.group(i)); } } } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html