How to extract word which has only numbers separated by 'dot'











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From below lines



abcd efgh ijhk lmn opqrs 9.0.8.2c tuv wxyz
abcd efgh ijhk lmn opqrs 8.1.3.9b


How to extract only



9.0.8.2c
8.1.3.9b









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  • It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
    – Stéphane Chazelas
    Dec 6 at 9:10










  • Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
    – Stéphane Chazelas
    Dec 6 at 9:44

















up vote
0
down vote

favorite












From below lines



abcd efgh ijhk lmn opqrs 9.0.8.2c tuv wxyz
abcd efgh ijhk lmn opqrs 8.1.3.9b


How to extract only



9.0.8.2c
8.1.3.9b









share|improve this question
























  • It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
    – Stéphane Chazelas
    Dec 6 at 9:10










  • Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
    – Stéphane Chazelas
    Dec 6 at 9:44















up vote
0
down vote

favorite









up vote
0
down vote

favorite











From below lines



abcd efgh ijhk lmn opqrs 9.0.8.2c tuv wxyz
abcd efgh ijhk lmn opqrs 8.1.3.9b


How to extract only



9.0.8.2c
8.1.3.9b









share|improve this question















From below lines



abcd efgh ijhk lmn opqrs 9.0.8.2c tuv wxyz
abcd efgh ijhk lmn opqrs 8.1.3.9b


How to extract only



9.0.8.2c
8.1.3.9b






linux text-processing pattern-matching






share|improve this question















share|improve this question













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share|improve this question








edited Dec 6 at 11:18









Isaac

11k11648




11k11648










asked Dec 6 at 8:53









GSG

1




1












  • It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
    – Stéphane Chazelas
    Dec 6 at 9:10










  • Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
    – Stéphane Chazelas
    Dec 6 at 9:44




















  • It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
    – Stéphane Chazelas
    Dec 6 at 9:10










  • Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
    – Stéphane Chazelas
    Dec 6 at 9:44


















It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
– Stéphane Chazelas
Dec 6 at 9:10




It would be more helpful if your sample had more examples of things you don't want it to match (like what about foo1.2, foo-1.2, 1.2-3). How do you define word? How do you define number? 9c being a number implies numbers here are hexadecimal numbers. Is that right?
– Stéphane Chazelas
Dec 6 at 9:10












Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
– Stéphane Chazelas
Dec 6 at 9:44






Why isn't abcd to be matched? That's an hexadecimal number as well. Is that because you need those words to contain at least two numbers?
– Stéphane Chazelas
Dec 6 at 9:44












4 Answers
4






active

oldest

votes

















up vote
0
down vote













Try this,



 grep -E -o '[0-9].[0-9].[0-9].[0-9][^[:space:]]+' file




  • -E Interpret PATTERN as an extended regular expression


  • -o Print only the matched parts of a matching line


  • [^[:space:]]+ until white space






share|improve this answer























  • @StéphaneChazelas Thanks, updated for dot, ...
    – msp9011
    Dec 6 at 9:11










  • @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
    – msp9011
    Dec 6 at 9:13










  • @StéphaneChazelas much thanks...
    – msp9011
    Dec 6 at 9:39


















up vote
0
down vote













If by word, you mean sequence of non-whitespace characters, and by number, you mean hexadecimal (without sign or leading 0x, so sequence of 0123456789abcdefABCDEF characters), and that you need at least two of those numbers per word (otherwise abcd would be matched as well), with GNU grep you can do:



grep -Pio '(?<!S)[0-9a-f]+(.[0-9a-f]+)+(?!S)'


Or with perl:



perl -lne 'for (/S+/g) {print if /^[da-f]+(.[da-f]+)+$/}'





share|improve this answer




























    up vote
    0
    down vote













    Assuming the values are inside a file, with pcre grep:



     $ grep -P '(([0-9a-f]+).)(?1)+(?2)' file
    9.0.8.2c
    8.1.3.9b


    Or with perl:



     perl -lne '/((([da-f]+).)(?2)+(?3))/;print $1' file





    share|improve this answer




























      up vote
      0
      down vote













      Try also



      grep -oE "(w*[.]w*)*" file
      9.0.8.2c
      8.1.3.9b





      share|improve this answer





















      • Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
        – JigglyNaga
        Dec 6 at 13:48











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      4 Answers
      4






      active

      oldest

      votes








      4 Answers
      4






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes








      up vote
      0
      down vote













      Try this,



       grep -E -o '[0-9].[0-9].[0-9].[0-9][^[:space:]]+' file




      • -E Interpret PATTERN as an extended regular expression


      • -o Print only the matched parts of a matching line


      • [^[:space:]]+ until white space






      share|improve this answer























      • @StéphaneChazelas Thanks, updated for dot, ...
        – msp9011
        Dec 6 at 9:11










      • @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
        – msp9011
        Dec 6 at 9:13










      • @StéphaneChazelas much thanks...
        – msp9011
        Dec 6 at 9:39















      up vote
      0
      down vote













      Try this,



       grep -E -o '[0-9].[0-9].[0-9].[0-9][^[:space:]]+' file




      • -E Interpret PATTERN as an extended regular expression


      • -o Print only the matched parts of a matching line


      • [^[:space:]]+ until white space






      share|improve this answer























      • @StéphaneChazelas Thanks, updated for dot, ...
        – msp9011
        Dec 6 at 9:11










      • @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
        – msp9011
        Dec 6 at 9:13










      • @StéphaneChazelas much thanks...
        – msp9011
        Dec 6 at 9:39













      up vote
      0
      down vote










      up vote
      0
      down vote









      Try this,



       grep -E -o '[0-9].[0-9].[0-9].[0-9][^[:space:]]+' file




      • -E Interpret PATTERN as an extended regular expression


      • -o Print only the matched parts of a matching line


      • [^[:space:]]+ until white space






      share|improve this answer














      Try this,



       grep -E -o '[0-9].[0-9].[0-9].[0-9][^[:space:]]+' file




      • -E Interpret PATTERN as an extended regular expression


      • -o Print only the matched parts of a matching line


      • [^[:space:]]+ until white space







      share|improve this answer














      share|improve this answer



      share|improve this answer








      edited Dec 6 at 9:38

























      answered Dec 6 at 8:58









      msp9011

      3,65543863




      3,65543863












      • @StéphaneChazelas Thanks, updated for dot, ...
        – msp9011
        Dec 6 at 9:11










      • @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
        – msp9011
        Dec 6 at 9:13










      • @StéphaneChazelas much thanks...
        – msp9011
        Dec 6 at 9:39


















      • @StéphaneChazelas Thanks, updated for dot, ...
        – msp9011
        Dec 6 at 9:11










      • @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
        – msp9011
        Dec 6 at 9:13










      • @StéphaneChazelas much thanks...
        – msp9011
        Dec 6 at 9:39
















      @StéphaneChazelas Thanks, updated for dot, ...
      – msp9011
      Dec 6 at 9:11




      @StéphaneChazelas Thanks, updated for dot, ...
      – msp9011
      Dec 6 at 9:11












      @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
      – msp9011
      Dec 6 at 9:13




      @StéphaneChazelas i ment w+ as untile white space, since w followed by +.... correct me if im wrong...
      – msp9011
      Dec 6 at 9:13












      @StéphaneChazelas much thanks...
      – msp9011
      Dec 6 at 9:39




      @StéphaneChazelas much thanks...
      – msp9011
      Dec 6 at 9:39












      up vote
      0
      down vote













      If by word, you mean sequence of non-whitespace characters, and by number, you mean hexadecimal (without sign or leading 0x, so sequence of 0123456789abcdefABCDEF characters), and that you need at least two of those numbers per word (otherwise abcd would be matched as well), with GNU grep you can do:



      grep -Pio '(?<!S)[0-9a-f]+(.[0-9a-f]+)+(?!S)'


      Or with perl:



      perl -lne 'for (/S+/g) {print if /^[da-f]+(.[da-f]+)+$/}'





      share|improve this answer

























        up vote
        0
        down vote













        If by word, you mean sequence of non-whitespace characters, and by number, you mean hexadecimal (without sign or leading 0x, so sequence of 0123456789abcdefABCDEF characters), and that you need at least two of those numbers per word (otherwise abcd would be matched as well), with GNU grep you can do:



        grep -Pio '(?<!S)[0-9a-f]+(.[0-9a-f]+)+(?!S)'


        Or with perl:



        perl -lne 'for (/S+/g) {print if /^[da-f]+(.[da-f]+)+$/}'





        share|improve this answer























          up vote
          0
          down vote










          up vote
          0
          down vote









          If by word, you mean sequence of non-whitespace characters, and by number, you mean hexadecimal (without sign or leading 0x, so sequence of 0123456789abcdefABCDEF characters), and that you need at least two of those numbers per word (otherwise abcd would be matched as well), with GNU grep you can do:



          grep -Pio '(?<!S)[0-9a-f]+(.[0-9a-f]+)+(?!S)'


          Or with perl:



          perl -lne 'for (/S+/g) {print if /^[da-f]+(.[da-f]+)+$/}'





          share|improve this answer












          If by word, you mean sequence of non-whitespace characters, and by number, you mean hexadecimal (without sign or leading 0x, so sequence of 0123456789abcdefABCDEF characters), and that you need at least two of those numbers per word (otherwise abcd would be matched as well), with GNU grep you can do:



          grep -Pio '(?<!S)[0-9a-f]+(.[0-9a-f]+)+(?!S)'


          Or with perl:



          perl -lne 'for (/S+/g) {print if /^[da-f]+(.[da-f]+)+$/}'






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 6 at 9:49









          Stéphane Chazelas

          298k54562909




          298k54562909






















              up vote
              0
              down vote













              Assuming the values are inside a file, with pcre grep:



               $ grep -P '(([0-9a-f]+).)(?1)+(?2)' file
              9.0.8.2c
              8.1.3.9b


              Or with perl:



               perl -lne '/((([da-f]+).)(?2)+(?3))/;print $1' file





              share|improve this answer

























                up vote
                0
                down vote













                Assuming the values are inside a file, with pcre grep:



                 $ grep -P '(([0-9a-f]+).)(?1)+(?2)' file
                9.0.8.2c
                8.1.3.9b


                Or with perl:



                 perl -lne '/((([da-f]+).)(?2)+(?3))/;print $1' file





                share|improve this answer























                  up vote
                  0
                  down vote










                  up vote
                  0
                  down vote









                  Assuming the values are inside a file, with pcre grep:



                   $ grep -P '(([0-9a-f]+).)(?1)+(?2)' file
                  9.0.8.2c
                  8.1.3.9b


                  Or with perl:



                   perl -lne '/((([da-f]+).)(?2)+(?3))/;print $1' file





                  share|improve this answer












                  Assuming the values are inside a file, with pcre grep:



                   $ grep -P '(([0-9a-f]+).)(?1)+(?2)' file
                  9.0.8.2c
                  8.1.3.9b


                  Or with perl:



                   perl -lne '/((([da-f]+).)(?2)+(?3))/;print $1' file






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Dec 6 at 11:44









                  Isaac

                  11k11648




                  11k11648






















                      up vote
                      0
                      down vote













                      Try also



                      grep -oE "(w*[.]w*)*" file
                      9.0.8.2c
                      8.1.3.9b





                      share|improve this answer





















                      • Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                        – JigglyNaga
                        Dec 6 at 13:48















                      up vote
                      0
                      down vote













                      Try also



                      grep -oE "(w*[.]w*)*" file
                      9.0.8.2c
                      8.1.3.9b





                      share|improve this answer





















                      • Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                        – JigglyNaga
                        Dec 6 at 13:48













                      up vote
                      0
                      down vote










                      up vote
                      0
                      down vote









                      Try also



                      grep -oE "(w*[.]w*)*" file
                      9.0.8.2c
                      8.1.3.9b





                      share|improve this answer












                      Try also



                      grep -oE "(w*[.]w*)*" file
                      9.0.8.2c
                      8.1.3.9b






                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered Dec 6 at 12:28









                      RudiC

                      3,9541312




                      3,9541312












                      • Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                        – JigglyNaga
                        Dec 6 at 13:48


















                      • Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                        – JigglyNaga
                        Dec 6 at 13:48
















                      Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                      – JigglyNaga
                      Dec 6 at 13:48




                      Perhaps end with + instead of *, to avoid matching the empty string? The output will be the same, but the * form will report "success" even on files containing no such words.
                      – JigglyNaga
                      Dec 6 at 13:48


















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