Faster way to concatenate files of same name in different directories









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I'm trying to do exactly as in this post and used the accepted answer. My question is, is there a faster alternative? This has literally run for several hours and is still creating the new empty files. I have hundreds of files to concatenate. Thanks!



https://unix.stackexchange.com/questions/435794/create-new-concatenated-files-of-same-name-in-multiple-directories



Here's the code:



find . -type f -path "*/*/*/*/$name" 
-exec cat + >"New_Dir/$name"
done < list_to_concat.txt


I've read on similar posts that a loop might be quicker, but not able to get that to work properly. I'm testing with echo here:



for i in */*/*/*/*.txt; 
do echo find -name $i -exec bash -c cat $i >>
"New_Dir/$i"; done









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  • The down-vote to this questions would be helpful if explained why...
    – NKN
    Nov 11 at 21:54










  • I have up-voted it for neutralizing it.
    – RavinderSingh13
    Nov 21 at 2:59














up vote
0
down vote

favorite
1












I'm trying to do exactly as in this post and used the accepted answer. My question is, is there a faster alternative? This has literally run for several hours and is still creating the new empty files. I have hundreds of files to concatenate. Thanks!



https://unix.stackexchange.com/questions/435794/create-new-concatenated-files-of-same-name-in-multiple-directories



Here's the code:



find . -type f -path "*/*/*/*/$name" 
-exec cat + >"New_Dir/$name"
done < list_to_concat.txt


I've read on similar posts that a loop might be quicker, but not able to get that to work properly. I'm testing with echo here:



for i in */*/*/*/*.txt; 
do echo find -name $i -exec bash -c cat $i >>
"New_Dir/$i"; done









share|improve this question























  • The down-vote to this questions would be helpful if explained why...
    – NKN
    Nov 11 at 21:54










  • I have up-voted it for neutralizing it.
    – RavinderSingh13
    Nov 21 at 2:59












up vote
0
down vote

favorite
1









up vote
0
down vote

favorite
1






1





I'm trying to do exactly as in this post and used the accepted answer. My question is, is there a faster alternative? This has literally run for several hours and is still creating the new empty files. I have hundreds of files to concatenate. Thanks!



https://unix.stackexchange.com/questions/435794/create-new-concatenated-files-of-same-name-in-multiple-directories



Here's the code:



find . -type f -path "*/*/*/*/$name" 
-exec cat + >"New_Dir/$name"
done < list_to_concat.txt


I've read on similar posts that a loop might be quicker, but not able to get that to work properly. I'm testing with echo here:



for i in */*/*/*/*.txt; 
do echo find -name $i -exec bash -c cat $i >>
"New_Dir/$i"; done









share|improve this question















I'm trying to do exactly as in this post and used the accepted answer. My question is, is there a faster alternative? This has literally run for several hours and is still creating the new empty files. I have hundreds of files to concatenate. Thanks!



https://unix.stackexchange.com/questions/435794/create-new-concatenated-files-of-same-name-in-multiple-directories



Here's the code:



find . -type f -path "*/*/*/*/$name" 
-exec cat + >"New_Dir/$name"
done < list_to_concat.txt


I've read on similar posts that a loop might be quicker, but not able to get that to work properly. I'm testing with echo here:



for i in */*/*/*/*.txt; 
do echo find -name $i -exec bash -c cat $i >>
"New_Dir/$i"; done






linux performance find concatenation






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edited Oct 17 at 19:00

























asked Oct 17 at 13:15









NKN

305




305











  • The down-vote to this questions would be helpful if explained why...
    – NKN
    Nov 11 at 21:54










  • I have up-voted it for neutralizing it.
    – RavinderSingh13
    Nov 21 at 2:59
















  • The down-vote to this questions would be helpful if explained why...
    – NKN
    Nov 11 at 21:54










  • I have up-voted it for neutralizing it.
    – RavinderSingh13
    Nov 21 at 2:59















The down-vote to this questions would be helpful if explained why...
– NKN
Nov 11 at 21:54




The down-vote to this questions would be helpful if explained why...
– NKN
Nov 11 at 21:54












I have up-voted it for neutralizing it.
– RavinderSingh13
Nov 21 at 2:59




I have up-voted it for neutralizing it.
– RavinderSingh13
Nov 21 at 2:59












1 Answer
1






active

oldest

votes

















up vote
0
down vote



accepted










In case this is useful to anyone else searching one day, I learned a much faster way to do this using xargs and ls:



while read -r name
do
ls */*/*/*/$name.txt | xargs cat > $name.combine
done <List_to_combine.txt





share|improve this answer




















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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    0
    down vote



    accepted










    In case this is useful to anyone else searching one day, I learned a much faster way to do this using xargs and ls:



    while read -r name
    do
    ls */*/*/*/$name.txt | xargs cat > $name.combine
    done <List_to_combine.txt





    share|improve this answer
























      up vote
      0
      down vote



      accepted










      In case this is useful to anyone else searching one day, I learned a much faster way to do this using xargs and ls:



      while read -r name
      do
      ls */*/*/*/$name.txt | xargs cat > $name.combine
      done <List_to_combine.txt





      share|improve this answer






















        up vote
        0
        down vote



        accepted







        up vote
        0
        down vote



        accepted






        In case this is useful to anyone else searching one day, I learned a much faster way to do this using xargs and ls:



        while read -r name
        do
        ls */*/*/*/$name.txt | xargs cat > $name.combine
        done <List_to_combine.txt





        share|improve this answer












        In case this is useful to anyone else searching one day, I learned a much faster way to do this using xargs and ls:



        while read -r name
        do
        ls */*/*/*/$name.txt | xargs cat > $name.combine
        done <List_to_combine.txt






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 11 at 21:53









        NKN

        305




        305



























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