Compare element between two similar array

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Suppose such a minimal task to select elements in B but not in A



file_list1=(a.sh b.sh c.sh)
file_list2=(b.sh c.sh d.sh)

for i in files_list1; do
for k in files_list2; do
if [[ $k in $(echo $i) ]]; then
echo
else
echo $k
fi
done
done


it report errors:



$ bash compare.sh 
compare.sh: line 5: conditional binary operator expected
compare.sh: line 5: syntax error near `in'
compare.sh: line 5: ` if [[ $k in $(echo $i) ]]; then'


if not apply in, how could get the code working?









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    up vote
    0
    down vote

    favorite












    Suppose such a minimal task to select elements in B but not in A



    file_list1=(a.sh b.sh c.sh)
    file_list2=(b.sh c.sh d.sh)

    for i in files_list1; do
    for k in files_list2; do
    if [[ $k in $(echo $i) ]]; then
    echo
    else
    echo $k
    fi
    done
    done


    it report errors:



    $ bash compare.sh 
    compare.sh: line 5: conditional binary operator expected
    compare.sh: line 5: syntax error near `in'
    compare.sh: line 5: ` if [[ $k in $(echo $i) ]]; then'


    if not apply in, how could get the code working?









    share







    New contributor




    Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      Suppose such a minimal task to select elements in B but not in A



      file_list1=(a.sh b.sh c.sh)
      file_list2=(b.sh c.sh d.sh)

      for i in files_list1; do
      for k in files_list2; do
      if [[ $k in $(echo $i) ]]; then
      echo
      else
      echo $k
      fi
      done
      done


      it report errors:



      $ bash compare.sh 
      compare.sh: line 5: conditional binary operator expected
      compare.sh: line 5: syntax error near `in'
      compare.sh: line 5: ` if [[ $k in $(echo $i) ]]; then'


      if not apply in, how could get the code working?









      share







      New contributor




      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      Suppose such a minimal task to select elements in B but not in A



      file_list1=(a.sh b.sh c.sh)
      file_list2=(b.sh c.sh d.sh)

      for i in files_list1; do
      for k in files_list2; do
      if [[ $k in $(echo $i) ]]; then
      echo
      else
      echo $k
      fi
      done
      done


      it report errors:



      $ bash compare.sh 
      compare.sh: line 5: conditional binary operator expected
      compare.sh: line 5: syntax error near `in'
      compare.sh: line 5: ` if [[ $k in $(echo $i) ]]; then'


      if not apply in, how could get the code working?







      shell-script





      share







      New contributor




      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






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      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 2 mins ago









      Sawajiri

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      1906




      New contributor




      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Sawajiri is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.

























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