Print array elements on separate lines in Bash

Question

How do I print the array element of a Bash array on separate lines  This one works  but surely there is a better way     my array  one two three    for i in   my array      do echo  i  done one two three   Tried this one but it did not work     IFS    n  echo   my array     one two three

User · Answer

I tried the answers here in a giant for   if loop  but didn t get any joy - so I did it like this  maybe messy but did the job      EXP LIST2 is iterated        imagine a for loop      EXP LIST  List item           EXP LIST2   EXP LIST2  n  EXP LIST   done   echo -e  EXP LIST2   although that added a space to the list  which is fine - I wanted it indented a bit  Also presume the   n  could be printed in the original  EP LIST

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Using for   for each in    alpha      do   echo   each  done   Using history  note this will fail if your values contain     history -p    alpha        Using basename  note this will fail if your values contain     basename -a    alpha        Using shuf  note that results might not come out in order   shuf -e    alpha

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Another useful variant is pipe to tr   echo    my array        tr       n   This looks simple and compact

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I ve discovered that you can use eval to avoid using a subshell  Thus  IFS    n  eval  echo  quot   my array     quot

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Just quote the argument to echo     IFS    n   echo    my array          the sub shell helps restoring the IFS after use

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You could use a Bash C Style For Loop to do what you want  my array  one two three   for   i 0  i  lt     my array      i       do echo  quot   my array  i   quot   done one two three

User · Answer

Try doing this      printf   s n     my array        The difference between    and       Unquoted  the results are unspecified  In Bash  both expand to separate args and then wordsplit and globbed  Quoted       expands each element as a separate argument  while      expands to the args merged into one argument    1c 2c      where c is the first char of IFS     You almost always want       Same goes for    arr        Always quote them

[arrays] Print array elements on separate lines in Bash?

Examples related to arrays

Examples related to bash