Duplicate rows in text file












3














I need to duplicate rows in text file with a specific number of times. For example my data file is:



jplg3350.18i

jplg3360.18i

jplg3370.18i


I need to duplicate the lines three times as follows;



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





bash text-processing







share|improve this question
























  • See also superuser.com/q/338616/418028
    – Sergiy Kolodyazhnyy
    yesterday
















3














I need to duplicate rows in text file with a specific number of times. For example my data file is:



jplg3350.18i

jplg3360.18i

jplg3370.18i


I need to duplicate the lines three times as follows;



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





bash text-processing







share|improve this question
























  • See also superuser.com/q/338616/418028
    – Sergiy Kolodyazhnyy
    yesterday














3












3








3







I need to duplicate rows in text file with a specific number of times. For example my data file is:



jplg3350.18i

jplg3360.18i

jplg3370.18i


I need to duplicate the lines three times as follows;



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





bash text-processing







share|improve this question















I need to duplicate rows in text file with a specific number of times. For example my data file is:



jplg3350.18i

jplg3360.18i

jplg3370.18i


I need to duplicate the lines three times as follows;



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





bash text-processing




bash text-processing






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited yesterday









Kulfy

3,84841140




3,84841140










asked yesterday









deepblue_86deepblue_86

5611023




5611023












  • See also superuser.com/q/338616/418028
    – Sergiy Kolodyazhnyy
    yesterday


















  • See also superuser.com/q/338616/418028
    – Sergiy Kolodyazhnyy
    yesterday
















See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
yesterday




See also superuser.com/q/338616/418028
– Sergiy Kolodyazhnyy
yesterday










1 Answer
1






active

oldest

votes


















10














For 3 times you can just run:



cat file file file > new_file


And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.




However it's a better idea to use a simple "loop" in combination with cat command.





  • 3 times example:



    for i in {1..3}; do cat file >> new_file; done



Or as you asked in comments:



limit=3

for ((i=0; i<limit; i++)); do cat file >> new_file; done


Change '3' to any number you want.



Result:



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





share|improve this answer



















  • 2




    You couldn't even let the little guys take this one! Happy New Year Rav!
    – George Udosen
    yesterday












  • :)) Happy to you too George ;)
    – Ravexina
    yesterday












  • @George, thank you very much.
    – deepblue_86
    yesterday






  • 1




    Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
    – wjandrea
    yesterday











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









10














For 3 times you can just run:



cat file file file > new_file


And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.




However it's a better idea to use a simple "loop" in combination with cat command.





  • 3 times example:



    for i in {1..3}; do cat file >> new_file; done



Or as you asked in comments:



limit=3

for ((i=0; i<limit; i++)); do cat file >> new_file; done


Change '3' to any number you want.



Result:



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





share|improve this answer



















  • 2




    You couldn't even let the little guys take this one! Happy New Year Rav!
    – George Udosen
    yesterday












  • :)) Happy to you too George ;)
    – Ravexina
    yesterday












  • @George, thank you very much.
    – deepblue_86
    yesterday






  • 1




    Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
    – wjandrea
    yesterday
















10














For 3 times you can just run:



cat file file file > new_file


And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.




However it's a better idea to use a simple "loop" in combination with cat command.





  • 3 times example:



    for i in {1..3}; do cat file >> new_file; done



Or as you asked in comments:



limit=3

for ((i=0; i<limit; i++)); do cat file >> new_file; done


Change '3' to any number you want.



Result:



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





share|improve this answer



















  • 2




    You couldn't even let the little guys take this one! Happy New Year Rav!
    – George Udosen
    yesterday












  • :)) Happy to you too George ;)
    – Ravexina
    yesterday












  • @George, thank you very much.
    – deepblue_86
    yesterday






  • 1




    Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
    – wjandrea
    yesterday














10












10








10






For 3 times you can just run:



cat file file file > new_file


And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.




However it's a better idea to use a simple "loop" in combination with cat command.





  • 3 times example:



    for i in {1..3}; do cat file >> new_file; done



Or as you asked in comments:



limit=3

for ((i=0; i<limit; i++)); do cat file >> new_file; done


Change '3' to any number you want.



Result:



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i





share|improve this answer














For 3 times you can just run:



cat file file file > new_file


And here is a trick if you're lazy like me and you don't want to re-type the file name N times. Type cat then the filename, Press Ctrl+W, then Ctrl+YSpace N times, finally type > new_file.




However it's a better idea to use a simple "loop" in combination with cat command.





  • 3 times example:



    for i in {1..3}; do cat file >> new_file; done



Or as you asked in comments:



limit=3

for ((i=0; i<limit; i++)); do cat file >> new_file; done


Change '3' to any number you want.



Result:



jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i

jplg3350.18i

jplg3360.18i

jplg3370.18i






share|improve this answer














share|improve this answer



share|improve this answer








edited yesterday

























answered yesterday









RavexinaRavexina

31.6k1482111




31.6k1482111








  • 2




    You couldn't even let the little guys take this one! Happy New Year Rav!
    – George Udosen
    yesterday












  • :)) Happy to you too George ;)
    – Ravexina
    yesterday












  • @George, thank you very much.
    – deepblue_86
    yesterday






  • 1




    Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
    – wjandrea
    yesterday














  • 2




    You couldn't even let the little guys take this one! Happy New Year Rav!
    – George Udosen
    yesterday












  • :)) Happy to you too George ;)
    – Ravexina
    yesterday












  • @George, thank you very much.
    – deepblue_86
    yesterday






  • 1




    Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
    – wjandrea
    yesterday








2




2




You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
yesterday






You couldn't even let the little guys take this one! Happy New Year Rav!
– George Udosen
yesterday














:)) Happy to you too George ;)
– Ravexina
yesterday






:)) Happy to you too George ;)
– Ravexina
yesterday














@George, thank you very much.
– deepblue_86
yesterday




@George, thank you very much.
– deepblue_86
yesterday




1




1




Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
– wjandrea
yesterday




Another lazy trick is to use brace expansion with an empty string: cat file{,,} > new_file
– wjandrea
yesterday


















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