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
No Match

/
/
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/^(.*?)_.*?(\d\d?)-(\d\d?)-(\d\d?)-(\d)-(\d{1,3}).*total images\/sec: (\d*).(\d*)$/m'; $str = 'alexnet_1/10-6-4-1-128//10-6-4-1-128_srun1_han0035_9838584:total images/sec: 830.13 alexnet_1/10-7-3-1-128//10-7-3-1-128_srun1_han0014_9838577:total images/sec: 866.66 alexnet_1/10-8-2-1-128//10-8-2-1-128_srun1_han0035_9838570:total images/sec: 915.89 alexnet_1/11-7-4-1-128//11-7-4-1-128_srun1_han0015_9838585:total images/sec: 936.79 alexnet_1/11-8-3-1-128//11-8-3-1-128_srun1_han0026_9838578:total images/sec: 1045.63 alexnet_1/12-8-4-1-128//12-8-4-1-128_srun1_han0028_9838586:total images/sec: 1123.31 alexnet_1/2-1-1-1-128//2-1-1-1-128_srun1_han0006_9838555:total images/sec: 147.37 alexnet_1/3-1-2-1-128//3-1-2-1-128_srun1_han0016_9838563:total images/sec: 181.54 alexnet_1/3-2-1-1-128//3-2-1-1-128_srun1_han0009_9838556:total images/sec: 269.39 alexnet_1/4-1-3-1-128//4-1-3-1-128_srun1_han0039_9838571:total images/sec: 201.77 alexnet_1/4-2-2-1-128//4-2-2-1-128_srun1_han0020_9838564:total images/sec: 319.08 alexnet_1/4-3-1-1-128//4-3-1-1-128_srun1_han0013_9838557:total images/sec: 398.86 alexnet_1/5-1-4-1-128//5-1-4-1-128_srun1_han0043_9838579:total images/sec: 186.62 alexnet_1/5-2-3-1-128//5-2-3-1-128_srun1_han0044_9838572:total images/sec: 309.72 alexnet_1/5-3-2-1-128//5-3-2-1-128_srun1_han0026_9838565:total images/sec: 415.91 alexnet_1/5-4-1-1-128//5-4-1-1-128_srun1_han0018_9838558:total images/sec: 564.42 alexnet_1/6-2-4-1-128//6-2-4-1-128_srun1_han0035_9838580:total images/sec: 278.40 alexnet_1/6-3-3-1-128//6-3-3-1-128_srun1_han0010_9838573:total images/sec: 498.17 alexnet_1/6-4-2-1-128//6-4-2-1-128_srun1_han0035_9838566:total images/sec: 553.35 alexnet_1/6-5-1-1-128//6-5-1-1-128_srun1_han0025_9838559:total images/sec: 632.00 alexnet_1/7-3-4-1-128//7-3-4-1-128_srun1_han0042_9838581:total images/sec: 501.92 alexnet_1/7-4-3-1-128//7-4-3-1-128_srun1_han0017_9838574:total images/sec: 595.28 alexnet_1/7-5-2-1-128//7-5-2-1-128_srun1_han0042_9838567:total images/sec: 808.84 alexnet_1/7-6-1-1-128//7-6-1-1-128_srun1_han0035_9838560:total images/sec: 629.90 alexnet_1/8-4-4-1-128//8-4-4-1-128_srun1_han0012_9838582:total images/sec: 626.94 alexnet_1/8-5-3-1-128//8-5-3-1-128_srun1_han0026_9838575:total images/sec: 786.52 alexnet_1/8-6-2-1-128//8-6-2-1-128_srun1_han0012_9838568:total images/sec: 786.71 alexnet_1/8-7-1-1-128//8-7-1-1-128_srun1_han0043_9838561:total images/sec: 672.78 alexnet_1/9-5-4-1-128//9-5-4-1-128_srun1_han0022_9838583:total images/sec: 813.18 alexnet_1/9-6-3-1-128//9-6-3-1-128_srun1_han0038_9838576:total images/sec: 872.05 alexnet_1/9-7-2-1-128//9-7-2-1-128_srun1_han0022_9838569:total images/sec: 831.95 alexnet_1/9-8-1-1-128//9-8-1-1-128_srun1_han0013_9838562:total images/sec: 712.72 googlenet_1/10-6-4-1-32//10-6-4-1-32_srun1_han0014_9838747:total images/sec: 486.92 googlenet_1/10-7-3-1-32//10-7-3-1-32_srun1_han0024_9838740:total images/sec: 594.30 googlenet_1/10-8-2-1-32//10-8-2-1-32_srun1_han0014_9838733:total images/sec: 682.19 googlenet_1/11-7-4-1-32//11-7-4-1-32_srun1_han0026_9838748:total images/sec: 586.97 googlenet_1/12-8-4-1-32//12-8-4-1-32_srun1_han0041_9838749:total images/sec: 663.55 googlenet_1/2-1-1-1-32//2-1-1-1-32_srun1_han0044_9838718:total images/sec: 81.35 googlenet_1/3-1-2-1-32//3-1-2-1-32_srun1_han0035_9838726:total images/sec: 98.28 googlenet_1/3-2-1-1-32//3-2-1-1-32_srun1_han0038_9838719:total images/sec: 175.69 googlenet_1/4-1-3-1-32//4-1-3-1-32_srun1_han0042_9838734:total images/sec: 95.89 googlenet_1/4-2-2-1-32//4-2-2-1-32_srun1_han0039_9838727:total images/sec: 188.04 googlenet_1/4-3-1-1-32//4-3-1-1-32_srun1_han0042_9838720:total images/sec: 270.35 googlenet_1/5-1-4-1-32//5-1-4-1-32_srun1_han0043_9838742:total images/sec: 86.99 googlenet_1/5-2-3-1-32//5-2-3-1-32_srun1_han0019_9838735:total images/sec: 178.63 googlenet_1/5-3-2-1-32//5-3-2-1-32_srun1_han0044_9838728:total images/sec: 272.20 googlenet_1/5-4-1-1-32//5-4-1-1-32_srun1_han0036_9838721:total images/sec: 353.94 googlenet_1/6-2-4-1-32//6-2-4-1-32_srun1_han0010_9838743:total images/sec: 162.00 googlenet_1/6-3-3-1-32//6-3-3-1-32_srun1_han0026_9838736:total images/sec: 247.59 googlenet_1/6-4-2-1-32//6-4-2-1-32_srun1_han0010_9838729:total images/sec: 347.01 googlenet_1/6-5-1-1-32//6-5-1-1-32_srun1_han0042_9838722:total images/sec: 419.13 googlenet_1/7-3-4-1-32//7-3-4-1-32_srun1_han0017_9838744:total images/sec: 284.14 googlenet_1/7-4-3-1-32//7-4-3-1-32_srun1_han0036_9838737:total images/sec: 348.63 googlenet_1/7-5-2-1-32//7-5-2-1-32_srun1_han0017_9838730:total images/sec: 398.26 googlenet_1/7-6-1-1-32//7-6-1-1-32_srun1_han0011_9838723:total images/sec: 494.07 googlenet_1/8-4-4-1-32//8-4-4-1-32_srun1_han0026_9838745:total images/sec: 332.42 googlenet_1/8-5-3-1-32//8-5-3-1-32_srun1_han0044_9838738:total images/sec: 477.44 googlenet_1/8-6-2-1-32//8-6-2-1-32_srun1_han0026_9838731:total images/sec: 536.68 googlenet_1/8-7-1-1-32//8-7-1-1-32_srun1_han0019_9838724:total images/sec: 549.22 googlenet_1/9-5-4-1-32//9-5-4-1-32_srun1_han0038_9838746:total images/sec: 393.38 googlenet_1/9-6-3-1-32//9-6-3-1-32_srun1_han0013_9838739:total images/sec: 516.35 googlenet_1/9-7-2-1-32//9-7-2-1-32_srun1_han0038_9838732:total images/sec: 630.60 googlenet_1/9-8-1-1-32//9-8-1-1-32_srun1_han0030_9838725:total images/sec: 644.20 inception3_1/10-6-4-1-32//10-6-4-1-32_srun1_han0035_9838713:total images/sec: 151.25 inception3_1/10-7-3-1-32//10-7-3-1-32_srun1_han0014_9838706:total images/sec: 174.41 inception3_1/10-8-2-1-32//10-8-2-1-32_srun1_han0035_9838699:total images/sec: 194.19 inception3_1/11-7-4-1-32//11-7-4-1-32_srun1_han0015_9838714:total images/sec: 186.19 inception3_1/11-8-3-1-32//11-8-3-1-32_srun1_han0026_9838707:total images/sec: 199.51 inception3_1/12-8-4-1-32//12-8-4-1-32_srun1_han0028_9838715:total images/sec: 209.34 inception3_1/2-1-1-1-32//2-1-1-1-32_srun1_han0043_9838684:total images/sec: 24.53 inception3_1/3-1-2-1-32//3-1-2-1-32_srun1_han0041_9838692:total images/sec: 23.97 inception3_1/3-2-1-1-32//3-2-1-1-32_srun1_han0044_9838685:total images/sec: 51.51 inception3_1/4-1-3-1-32//4-1-3-1-32_srun1_han0043_9838700:total images/sec: 26.95 inception3_1/4-2-2-1-32//4-2-2-1-32_srun1_han0017_9838693:total images/sec: 50.26 inception3_1/4-3-1-1-32//4-3-1-1-32_srun1_han0008_9838686:total images/sec: 73.53 inception3_1/5-1-4-1-32//5-1-4-1-32_srun1_han0043_9838708:total images/sec: 26.67 inception3_1/5-2-3-1-32//5-2-3-1-32_srun1_han0040_9838701:total images/sec: 52.25 inception3_1/5-3-2-1-32//5-3-2-1-32_srun1_han0023_9838694:total images/sec: 76.75 inception3_1/5-4-1-1-32//5-4-1-1-32_srun1_han0013_9838687:total images/sec: 101.95 inception3_1/6-2-4-1-32//6-2-4-1-32_srun1_han0035_9838709:total images/sec: 52.04 inception3_1/6-3-3-1-32//6-3-3-1-32_srun1_han0010_9838702:total images/sec: 74.60 inception3_1/6-4-2-1-32//6-4-2-1-32_srun1_han0030_9838695:total images/sec: 98.00 inception3_1/6-5-1-1-32//6-5-1-1-32_srun1_han0019_9838688:total images/sec: 123.31 inception3_1/7-3-4-1-32//7-3-4-1-32_srun1_han0042_9838710:total images/sec: 77.42 inception3_1/7-4-3-1-32//7-4-3-1-32_srun1_han0017_9838703:total images/sec: 102.47 inception3_1/7-5-2-1-32//7-5-2-1-32_srun1_han0039_9838696:total images/sec: 131.97 inception3_1/7-6-1-1-32//7-6-1-1-32_srun1_han0027_9838689:total images/sec: 148.65 inception3_1/8-4-4-1-32//8-4-4-1-32_srun1_han0012_9838711:total images/sec: 102.15 inception3_1/8-5-3-1-32//8-5-3-1-32_srun1_han0026_9838704:total images/sec: 132.40 inception3_1/8-6-2-1-32//8-6-2-1-32_srun1_han0012_9838697:total images/sec: 159.81 inception3_1/8-7-1-1-32//8-7-1-1-32_srun1_han0038_9838690:total images/sec: 175.52 inception3_1/9-5-4-1-32//9-5-4-1-32_srun1_han0022_9838712:total images/sec: 129.51 inception3_1/9-6-3-1-32//9-6-3-1-32_srun1_han0038_9838705:total images/sec: 153.67 inception3_1/9-7-2-1-32//9-7-2-1-32_srun1_han0022_9838698:total images/sec: 169.81 inception3_1/9-8-1-1-32//9-8-1-1-32_srun1_han0013_9838691:total images/sec: 189.97 resnet152_1/10-6-4-1-16//10-6-4-1-16_srun1_han0035_9838649:total images/sec: 74.15 resnet152_1/10-7-3-1-16//10-7-3-1-16_srun1_han0014_9838642:total images/sec: 79.73 resnet152_1/10-8-2-1-16//10-8-2-1-16_srun1_han0035_9838635:total images/sec: 86.79 resnet152_1/11-7-4-1-16//11-7-4-1-16_srun1_han0015_9838650:total images/sec: 84.02 resnet152_1/11-8-3-1-16//11-8-3-1-16_srun1_han0026_9838643:total images/sec: 90.58 resnet152_1/12-8-4-1-16//12-8-4-1-16_srun1_han0028_9838651:total images/sec: 95.86 resnet152_1/2-1-1-1-16//2-1-1-1-16_srun1_han0043_9838620:total images/sec: 12.30 resnet152_1/3-1-2-1-16//3-1-2-1-16_srun1_han0041_9838628:total images/sec: 13.37 resnet152_1/3-2-1-1-16//3-2-1-1-16_srun1_han0044_9838621:total images/sec: 23.66 resnet152_1/4-1-3-1-16//4-1-3-1-16_srun1_han0043_9838636:total images/sec: 12.60 resnet152_1/4-2-2-1-16//4-2-2-1-16_srun1_han0017_9838629:total images/sec: 23.75 resnet152_1/4-3-1-1-16//4-3-1-1-16_srun1_han0008_9838622:total images/sec: 33.18 resnet152_1/5-1-4-1-16//5-1-4-1-16_srun1_han0043_9838644:total images/sec: 12.38 resnet152_1/5-2-3-1-16//5-2-3-1-16_srun1_han0040_9838637:total images/sec: 23.48 resnet152_1/5-3-2-1-16//5-3-2-1-16_srun1_han0023_9838630:total images/sec: 36.29 resnet152_1/5-4-1-1-16//5-4-1-1-16_srun1_han0013_9838623:total images/sec: 43.54 resnet152_1/6-2-4-1-16//6-2-4-1-16_srun1_han0035_9838645:total images/sec: 24.65 resnet152_1/6-3-3-1-16//6-3-3-1-16_srun1_han0010_9838638:total images/sec: 36.31 resnet152_1/6-4-2-1-16//6-4-2-1-16_srun1_han0030_9838631:total images/sec: 48.30 resnet152_1/6-5-1-1-16//6-5-1-1-16_srun1_han0019_9838624:total images/sec: 50.00 resnet152_1/7-3-4-1-16//7-3-4-1-16_srun1_han0042_9838646:total images/sec: 37.46 resnet152_1/7-4-3-1-16//7-4-3-1-16_srun1_han0017_9838639:total images/sec: 48.06 resnet152_1/7-5-2-1-16//7-5-2-1-16_srun1_han0039_9838632:total images/sec: 57.65 resnet152_1/7-6-1-1-16//7-6-1-1-16_srun1_han0027_9838625:total images/sec: 58.90 resnet152_1/8-4-4-1-16//8-4-4-1-16_srun1_han0012_9838647:total images/sec: 47.98 resnet152_1/8-5-3-1-16//8-5-3-1-16_srun1_han0026_9838640:total images/sec: 61.48 resnet152_1/8-6-2-1-16//8-6-2-1-16_srun1_han0012_9838633:total images/sec: 66.16 resnet152_1/8-7-1-1-16//8-7-1-1-16_srun1_han0038_9838626:total images/sec: 65.11 resnet152_1/9-5-4-1-16//9-5-4-1-16_srun1_han0022_9838648:total images/sec: 60.27 resnet152_1/9-6-3-1-16//9-6-3-1-16_srun1_han0038_9838641:total images/sec: 71.78 resnet152_1/9-7-2-1-16//9-7-2-1-16_srun1_han0022_9838634:total images/sec: 76.45 resnet152_1/9-8-1-1-16//9-8-1-1-16_srun1_han0013_9838627:total images/sec: 68.74 resnet50_1/10-6-4-1-32//10-6-4-1-32_srun1_han0014_9838681:total images/sec: 223.32 resnet50_1/10-7-3-1-32//10-7-3-1-32_srun1_han0024_9838674:total images/sec: 280.48 resnet50_1/10-8-2-1-32//10-8-2-1-32_srun1_han0014_9838667:total images/sec: 293.87 resnet50_1/11-7-4-1-32//11-7-4-1-32_srun1_han0026_9838682:total images/sec: 257.02 resnet50_1/11-8-3-1-32//11-8-3-1-32_srun1_han0038_9838675:total images/sec: 302.77 resnet50_1/12-8-4-1-32//12-8-4-1-32_srun1_han0041_9838683:total images/sec: 311.83 resnet50_1/2-1-1-1-32//2-1-1-1-32_srun1_han0044_9838652:total images/sec: 39.84 resnet50_1/3-1-2-1-32//3-1-2-1-32_srun1_han0035_9838660:total images/sec: 39.63 resnet50_1/3-2-1-1-32//3-2-1-1-32_srun1_han0038_9838653:total images/sec: 83.71 resnet50_1/4-1-3-1-32//4-1-3-1-32_srun1_han0042_9838668:total images/sec: 40.17 resnet50_1/4-2-2-1-32//4-2-2-1-32_srun1_han0039_9838661:total images/sec: 77.03 resnet50_1/4-3-1-1-32//4-3-1-1-32_srun1_han0042_9838654:total images/sec: 106.90 resnet50_1/5-1-4-1-32//5-1-4-1-32_srun1_han0043_9838676:total images/sec: 42.67 resnet50_1/5-2-3-1-32//5-2-3-1-32_srun1_han0019_9838669:total images/sec: 75.71 resnet50_1/5-3-2-1-32//5-3-2-1-32_srun1_han0044_9838662:total images/sec: 113.51 resnet50_1/5-4-1-1-32//5-4-1-1-32_srun1_han0036_9838655:total images/sec: 154.99 resnet50_1/6-2-4-1-32//6-2-4-1-32_srun1_han0010_9838677:total images/sec: 79.99 resnet50_1/6-3-3-1-32//6-3-3-1-32_srun1_han0026_9838670:total images/sec: 113.44 resnet50_1/6-4-2-1-32//6-4-2-1-32_srun1_han0010_9838663:total images/sec: 165.60 resnet50_1/6-5-1-1-32//6-5-1-1-32_srun1_han0042_9838656:total images/sec: 176.91 resnet50_1/7-3-4-1-32//7-3-4-1-32_srun1_han0017_9838678:total images/sec: 117.43 resnet50_1/7-4-3-1-32//7-4-3-1-32_srun1_han0036_9838671:total images/sec: 154.63 resnet50_1/7-5-2-1-32//7-5-2-1-32_srun1_han0017_9838664:total images/sec: 191.84 resnet50_1/7-6-1-1-32//7-6-1-1-32_srun1_han0011_9838657:total images/sec: 202.07 resnet50_1/8-4-4-1-32//8-4-4-1-32_srun1_han0026_9838679:total images/sec: 158.46 resnet50_1/8-5-3-1-32//8-5-3-1-32_srun1_han0044_9838672:total images/sec: 195.75 resnet50_1/8-6-2-1-32//8-6-2-1-32_srun1_han0026_9838665:total images/sec: 226.52 resnet50_1/8-7-1-1-32//8-7-1-1-32_srun1_han0019_9838658:total images/sec: 242.09 resnet50_1/9-5-4-1-32//9-5-4-1-32_srun1_han0038_9838680:total images/sec: 195.40 resnet50_1/9-6-3-1-32//9-6-3-1-32_srun1_han0013_9838673:total images/sec: 246.23 resnet50_1/9-7-2-1-32//9-7-2-1-32_srun1_han0038_9838666:total images/sec: 272.17 resnet50_1/9-8-1-1-32//9-8-1-1-32_srun1_han0030_9838659:total images/sec: 262.12 vgg16_1/10-6-4-1-16//10-6-4-1-16_srun1_han0014_9838617:total images/sec: 67.22 vgg16_1/10-7-3-1-16//10-7-3-1-16_srun1_han0024_9838610:total images/sec: 70.09 vgg16_1/10-8-2-1-16//10-8-2-1-16_srun1_han0014_9838603:total images/sec: 62.90 vgg16_1/11-7-4-1-16//11-7-4-1-16_srun1_han0026_9838618:total images/sec: 73.24 vgg16_1/11-8-3-1-16//11-8-3-1-16_srun1_han0038_9838611:total images/sec: 72.72 vgg16_1/12-8-4-1-16//12-8-4-1-16_srun1_han0041_9838619:total images/sec: 77.10 vgg16_1/2-1-1-1-16//2-1-1-1-16_srun1_han0044_9838588:total images/sec: 11.62 vgg16_1/3-1-2-1-16//3-1-2-1-16_srun1_han0035_9838596:total images/sec: 13.77 vgg16_1/3-2-1-1-16//3-2-1-1-16_srun1_han0038_9838589:total images/sec: 19.15 vgg16_1/4-1-3-1-16//4-1-3-1-16_srun1_han0042_9838604:total images/sec: 11.41 vgg16_1/4-2-2-1-16//4-2-2-1-16_srun1_han0039_9838597:total images/sec: 27.51 vgg16_1/4-3-1-1-16//4-3-1-1-16_srun1_han0042_9838590:total images/sec: 26.26 vgg16_1/5-1-4-1-16//5-1-4-1-16_srun1_han0043_9838612:total images/sec: 14.89 vgg16_1/5-2-3-1-16//5-2-3-1-16_srun1_han0019_9838605:total images/sec: 27.36 vgg16_1/5-3-2-1-16//5-3-2-1-16_srun1_han0044_9838598:total images/sec: 38.31 vgg16_1/5-4-1-1-16//5-4-1-1-16_srun1_han0036_9838591:total images/sec: 32.64 vgg16_1/6-2-4-1-16//6-2-4-1-16_srun1_han0010_9838613:total images/sec: 28.34 vgg16_1/6-3-3-1-16//6-3-3-1-16_srun1_han0026_9838606:total images/sec: 30.92 vgg16_1/6-4-2-1-16//6-4-2-1-16_srun1_han0010_9838599:total images/sec: 47.08 vgg16_1/6-5-1-1-16//6-5-1-1-16_srun1_han0042_9838592:total images/sec: 38.48 vgg16_1/7-3-4-1-16//7-3-4-1-16_srun1_han0017_9838614:total images/sec: 39.14 vgg16_1/7-4-3-1-16//7-4-3-1-16_srun1_han0036_9838607:total images/sec: 49.34 vgg16_1/7-5-2-1-16//7-5-2-1-16_srun1_han0017_9838600:total images/sec: 53.87 vgg16_1/8-4-4-1-16//8-4-4-1-16_srun1_han0026_9838615:total images/sec: 43.91 vgg16_1/8-5-3-1-16//8-5-3-1-16_srun1_han0044_9838608:total images/sec: 59.24 vgg16_1/8-6-2-1-16//8-6-2-1-16_srun1_han0026_9838601:total images/sec: 55.70 vgg16_1/9-5-4-1-16//9-5-4-1-16_srun1_han0038_9838616:total images/sec: 59.29 vgg16_1/9-6-3-1-16//9-6-3-1-16_srun1_han0013_9838609:total images/sec: 63.74 vgg16_1/9-7-2-1-16//9-7-2-1-16_srun1_han0038_9838602:total images/sec: 61.20'; $subst = "\1\t\2\t\3\t\4\t\5\t\6\t\7,\8"; $result = preg_replace($re, $subst, $str); echo "The result of the substitution is ".$result;

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 PHP, please visit: http://php.net/manual/en/ref.pcre.php