change only part of the substring using sed

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5
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I have a file that contains a numbers copied from somewhere. It looks something like this: 



02 12 04 01 07 10 11 06 08 05 03 15 13 00 14 09,
14 11 02 12 04 07 13 01 05 00 15 10 03 09 08 06,
04 02 01 11 10 13 07 08 15 09 12 05 06 03 00 14,
11 08 12 07 01 14 02 13 06 15 00 09 10 04 05 03


I now have to add comma after every number (basically to make it a C++ array) but as you can see it can be very tedious to do, especially if you have many of them.



I tried using sed like:
cat file.txt | sed -r "s/ /, /g"




But if I use this I am going to replace every "space" with ',space' and I only want to replace spaces that come after a digit with ','




If I use cat file.txt | sed -r "s/[0123456789] /, /g", I won't be able to get the same number before replacement. Thus, I only want to change some part of the substring.



How do I do this?






sed







share|improve this question



















  • 1




    @Hello scipsycho. Please see below. is this what you want?
    – Goro
    Sep 27 at 16:14










  • Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
    – pipe
    Sep 28 at 1:58










  • @pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
    – scipsycho
    Sep 28 at 2:48














up vote
5
down vote

favorite












I have a file that contains a numbers copied from somewhere. It looks something like this: 



02 12 04 01 07 10 11 06 08 05 03 15 13 00 14 09,
14 11 02 12 04 07 13 01 05 00 15 10 03 09 08 06,
04 02 01 11 10 13 07 08 15 09 12 05 06 03 00 14,
11 08 12 07 01 14 02 13 06 15 00 09 10 04 05 03


I now have to add comma after every number (basically to make it a C++ array) but as you can see it can be very tedious to do, especially if you have many of them.



I tried using sed like:
cat file.txt | sed -r "s/ /, /g"




But if I use this I am going to replace every "space" with ',space' and I only want to replace spaces that come after a digit with ','




If I use cat file.txt | sed -r "s/[0123456789] /, /g", I won't be able to get the same number before replacement. Thus, I only want to change some part of the substring.



How do I do this?






sed







share|improve this question



















  • 1




    @Hello scipsycho. Please see below. is this what you want?
    – Goro
    Sep 27 at 16:14










  • Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
    – pipe
    Sep 28 at 1:58










  • @pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
    – scipsycho
    Sep 28 at 2:48












up vote
5
down vote

favorite









up vote
5
down vote

favorite











I have a file that contains a numbers copied from somewhere. It looks something like this: 



02 12 04 01 07 10 11 06 08 05 03 15 13 00 14 09,
14 11 02 12 04 07 13 01 05 00 15 10 03 09 08 06,
04 02 01 11 10 13 07 08 15 09 12 05 06 03 00 14,
11 08 12 07 01 14 02 13 06 15 00 09 10 04 05 03


I now have to add comma after every number (basically to make it a C++ array) but as you can see it can be very tedious to do, especially if you have many of them.



I tried using sed like:
cat file.txt | sed -r "s/ /, /g"




But if I use this I am going to replace every "space" with ',space' and I only want to replace spaces that come after a digit with ','




If I use cat file.txt | sed -r "s/[0123456789] /, /g", I won't be able to get the same number before replacement. Thus, I only want to change some part of the substring.



How do I do this?






sed







share|improve this question















I have a file that contains a numbers copied from somewhere. It looks something like this: 



02 12 04 01 07 10 11 06 08 05 03 15 13 00 14 09,
14 11 02 12 04 07 13 01 05 00 15 10 03 09 08 06,
04 02 01 11 10 13 07 08 15 09 12 05 06 03 00 14,
11 08 12 07 01 14 02 13 06 15 00 09 10 04 05 03


I now have to add comma after every number (basically to make it a C++ array) but as you can see it can be very tedious to do, especially if you have many of them.



I tried using sed like:
cat file.txt | sed -r "s/ /, /g"




But if I use this I am going to replace every "space" with ',space' and I only want to replace spaces that come after a digit with ','




If I use cat file.txt | sed -r "s/[0123456789] /, /g", I won't be able to get the same number before replacement. Thus, I only want to change some part of the substring.



How do I do this?






sed




sed






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Sep 27 at 18:58









GAD3R

23.2k164896




23.2k164896










asked Sep 27 at 16:10









scipsycho

282




282







  • 1




    @Hello scipsycho. Please see below. is this what you want?
    – Goro
    Sep 27 at 16:14










  • Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
    – pipe
    Sep 28 at 1:58










  • @pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
    – scipsycho
    Sep 28 at 2:48












  • 1




    @Hello scipsycho. Please see below. is this what you want?
    – Goro
    Sep 27 at 16:14










  • Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
    – pipe
    Sep 28 at 1:58










  • @pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
    – scipsycho
    Sep 28 at 2:48







1




1




@Hello scipsycho. Please see below. is this what you want?
– Goro
Sep 27 at 16:14




@Hello scipsycho. Please see below. is this what you want?
– Goro
Sep 27 at 16:14












Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
– pipe
Sep 28 at 1:58




Just a heads-up: It won't compile even with commas. 08 and 09 are not valid integer literals.
– pipe
Sep 28 at 1:58












@pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
– scipsycho
Sep 28 at 2:48




@pipe you are right! but now that you guys have answered this question, I will do cat file.txt | sed -r 's/([{, ])0+([0-9])+/ 1 2/g' which will remove any zeros occurring in the units place
– scipsycho
Sep 28 at 2:48










4 Answers
4






active

oldest

votes

















up vote
11
down vote



accepted










cat file.txt | sed -r 's/([0-9]+)/1,/g'

02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,,
14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,,
04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,,
11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03,


Explanation:



First capturing group ([0-9]+)

Match a single character (i.e. number) present in the table [0-9]+ 
+ Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)

In other words, the [0-9]+ pattern matches an integer number (without decimals) even Inside longer strings, even words.
1 is called a "back reference" or "special escapes" in the sed documentation. It refers to the corresponding matching sub-expressions in the regexp. In other words, in this example, it inserts the contents of each captured number in the table followed by comma.





share|improve this answer


















  • 1




    Thanks! it worked! What does this '1' mean?
    – scipsycho
    Sep 27 at 16:27










  • Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
    – Goro
    Sep 27 at 16:34







  • 1




    Hi @Goro, thanks a lot for this explanation.
    – scipsycho
    Sep 27 at 16:49






  • 2




    The 1 is called a "back reference" in the sed documentation.
    – RobertL
    Sep 27 at 16:50






  • 2




    sed can read files.
    – RudiC
    Sep 27 at 21:24

















up vote
2
down vote













You can just replace a space followed by any number of spaces by a comma:



sed 's/ */,/g' file


(if the spaces at the start of some lines are just a copy paste error)






share|improve this answer



























    up vote
    2
    down vote













    How about



    sed 's/ +/, /g' file
    02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,
    14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,
    04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,
    11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03





    share|improve this answer



























      up vote
      1
      down vote













      This perl command will add a comma in between a digit and a space



      perl -pe 's/(?<=d)(?=s)/,/g' file





      share|improve this answer




















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        4 Answers
        4






        active

        oldest

        votes








        4 Answers
        4






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes








        up vote
        11
        down vote



        accepted










        cat file.txt | sed -r 's/([0-9]+)/1,/g'

        02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,,
        14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,,
        04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,,
        11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03,


        Explanation:



        First capturing group ([0-9]+)

        Match a single character (i.e. number) present in the table [0-9]+ 
        + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
        0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)

        In other words, the [0-9]+ pattern matches an integer number (without decimals) even Inside longer strings, even words.
        1 is called a "back reference" or "special escapes" in the sed documentation. It refers to the corresponding matching sub-expressions in the regexp. In other words, in this example, it inserts the contents of each captured number in the table followed by comma.





        share|improve this answer


















        • 1




          Thanks! it worked! What does this '1' mean?
          – scipsycho
          Sep 27 at 16:27










        • Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
          – Goro
          Sep 27 at 16:34







        • 1




          Hi @Goro, thanks a lot for this explanation.
          – scipsycho
          Sep 27 at 16:49






        • 2




          The 1 is called a "back reference" in the sed documentation.
          – RobertL
          Sep 27 at 16:50






        • 2




          sed can read files.
          – RudiC
          Sep 27 at 21:24














        up vote
        11
        down vote



        accepted










        cat file.txt | sed -r 's/([0-9]+)/1,/g'

        02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,,
        14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,,
        04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,,
        11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03,


        Explanation:



        First capturing group ([0-9]+)

        Match a single character (i.e. number) present in the table [0-9]+ 
        + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
        0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)

        In other words, the [0-9]+ pattern matches an integer number (without decimals) even Inside longer strings, even words.
        1 is called a "back reference" or "special escapes" in the sed documentation. It refers to the corresponding matching sub-expressions in the regexp. In other words, in this example, it inserts the contents of each captured number in the table followed by comma.





        share|improve this answer


















        • 1




          Thanks! it worked! What does this '1' mean?
          – scipsycho
          Sep 27 at 16:27










        • Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
          – Goro
          Sep 27 at 16:34







        • 1




          Hi @Goro, thanks a lot for this explanation.
          – scipsycho
          Sep 27 at 16:49






        • 2




          The 1 is called a "back reference" in the sed documentation.
          – RobertL
          Sep 27 at 16:50






        • 2




          sed can read files.
          – RudiC
          Sep 27 at 21:24












        up vote
        11
        down vote



        accepted







        up vote
        11
        down vote



        accepted






        cat file.txt | sed -r 's/([0-9]+)/1,/g'

        02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,,
        14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,,
        04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,,
        11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03,


        Explanation:



        First capturing group ([0-9]+)

        Match a single character (i.e. number) present in the table [0-9]+ 
        + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
        0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)

        In other words, the [0-9]+ pattern matches an integer number (without decimals) even Inside longer strings, even words.
        1 is called a "back reference" or "special escapes" in the sed documentation. It refers to the corresponding matching sub-expressions in the regexp. In other words, in this example, it inserts the contents of each captured number in the table followed by comma.





        share|improve this answer














        cat file.txt | sed -r 's/([0-9]+)/1,/g'

        02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,,
        14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,,
        04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,,
        11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03,


        Explanation:



        First capturing group ([0-9]+)

        Match a single character (i.e. number) present in the table [0-9]+ 
        + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
        0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)

        In other words, the [0-9]+ pattern matches an integer number (without decimals) even Inside longer strings, even words.
        1 is called a "back reference" or "special escapes" in the sed documentation. It refers to the corresponding matching sub-expressions in the regexp. In other words, in this example, it inserts the contents of each captured number in the table followed by comma.






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Sep 27 at 16:51

























        answered Sep 27 at 16:14









        Goro

        6,67752865




        6,67752865







        • 1




          Thanks! it worked! What does this '1' mean?
          – scipsycho
          Sep 27 at 16:27










        • Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
          – Goro
          Sep 27 at 16:34







        • 1




          Hi @Goro, thanks a lot for this explanation.
          – scipsycho
          Sep 27 at 16:49






        • 2




          The 1 is called a "back reference" in the sed documentation.
          – RobertL
          Sep 27 at 16:50






        • 2




          sed can read files.
          – RudiC
          Sep 27 at 21:24












        • 1




          Thanks! it worked! What does this '1' mean?
          – scipsycho
          Sep 27 at 16:27










        • Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
          – Goro
          Sep 27 at 16:34







        • 1




          Hi @Goro, thanks a lot for this explanation.
          – scipsycho
          Sep 27 at 16:49






        • 2




          The 1 is called a "back reference" in the sed documentation.
          – RobertL
          Sep 27 at 16:50






        • 2




          sed can read files.
          – RudiC
          Sep 27 at 21:24







        1




        1




        Thanks! it worked! What does this '1' mean?
        – scipsycho
        Sep 27 at 16:27




        Thanks! it worked! What does this '1' mean?
        – scipsycho
        Sep 27 at 16:27












        Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
        – Goro
        Sep 27 at 16:34





        Hi @scipsycho. ` 1` refers to the number within each cell in the field will be followed by a comma. :-)
        – Goro
        Sep 27 at 16:34





        1




        1




        Hi @Goro, thanks a lot for this explanation.
        – scipsycho
        Sep 27 at 16:49




        Hi @Goro, thanks a lot for this explanation.
        – scipsycho
        Sep 27 at 16:49




        2




        2




        The 1 is called a "back reference" in the sed documentation.
        – RobertL
        Sep 27 at 16:50




        The 1 is called a "back reference" in the sed documentation.
        – RobertL
        Sep 27 at 16:50




        2




        2




        sed can read files.
        – RudiC
        Sep 27 at 21:24




        sed can read files.
        – RudiC
        Sep 27 at 21:24












        up vote
        2
        down vote













        You can just replace a space followed by any number of spaces by a comma:



        sed 's/ */,/g' file


        (if the spaces at the start of some lines are just a copy paste error)






        share|improve this answer
























          up vote
          2
          down vote













          You can just replace a space followed by any number of spaces by a comma:



          sed 's/ */,/g' file


          (if the spaces at the start of some lines are just a copy paste error)






          share|improve this answer






















            up vote
            2
            down vote










            up vote
            2
            down vote









            You can just replace a space followed by any number of spaces by a comma:



            sed 's/ */,/g' file


            (if the spaces at the start of some lines are just a copy paste error)






            share|improve this answer












            You can just replace a space followed by any number of spaces by a comma:



            sed 's/ */,/g' file


            (if the spaces at the start of some lines are just a copy paste error)







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Sep 27 at 16:18









            choroba

            25k34168




            25k34168




















                up vote
                2
                down vote













                How about



                sed 's/ +/, /g' file
                02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,
                14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,
                04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,
                11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03





                share|improve this answer
























                  up vote
                  2
                  down vote













                  How about



                  sed 's/ +/, /g' file
                  02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,
                  14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,
                  04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,
                  11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03





                  share|improve this answer






















                    up vote
                    2
                    down vote










                    up vote
                    2
                    down vote









                    How about



                    sed 's/ +/, /g' file
                    02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,
                    14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,
                    04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,
                    11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03





                    share|improve this answer












                    How about



                    sed 's/ +/, /g' file
                    02, 12, 04, 01, 07, 10, 11, 06, 08, 05, 03, 15, 13, 00, 14, 09,
                    14, 11, 02, 12, 04, 07, 13, 01, 05, 00, 15, 10, 03, 09, 08, 06,
                    04, 02, 01, 11, 10, 13, 07, 08, 15, 09, 12, 05, 06, 03, 00, 14,
                    11, 08, 12, 07, 01, 14, 02, 13, 06, 15, 00, 09, 10, 04, 05, 03






                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Sep 27 at 16:24









                    RudiC

                    1,8329




                    1,8329




















                        up vote
                        1
                        down vote













                        This perl command will add a comma in between a digit and a space



                        perl -pe 's/(?<=d)(?=s)/,/g' file





                        share|improve this answer
























                          up vote
                          1
                          down vote













                          This perl command will add a comma in between a digit and a space



                          perl -pe 's/(?<=d)(?=s)/,/g' file





                          share|improve this answer






















                            up vote
                            1
                            down vote










                            up vote
                            1
                            down vote









                            This perl command will add a comma in between a digit and a space



                            perl -pe 's/(?<=d)(?=s)/,/g' file





                            share|improve this answer












                            This perl command will add a comma in between a digit and a space



                            perl -pe 's/(?<=d)(?=s)/,/g' file






                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered Sep 27 at 17:14









                            glenn jackman

                            48.3k365105




                            48.3k365105



























                                 

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                                How to check contact read email or not when send email to Individual?

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                                Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
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                                Displaying single band from multi-band raster using QGIS

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                                Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
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                                How many registers does an x86_64 CPU actually have?

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                                Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
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