[GitHub] ctubbsii edited a comment on issue #185: Calling uno within a script fails

[GitBox <gi...@apache.org>]

ctubbsii edited a comment on issue #185: Calling uno within a script fails
URL: https://github.com/apache/fluo-uno/issues/185#issuecomment-406467477
 
 
   I'm inclined to call this a bug in the caller... not in the uno script. It can be worked around by avoiding the pipe in the `| while read`, which hijacks file descriptors and keeps them in use during the loop.
   
   For example, this fails:
   
   ```bash
   { for x in "a 1" "b 2" "c 3"; do echo $x; done; } | while read y; do echo >&0 "->$y"; done
   ```
   
   But reading the input into an array first, and then looping over the array works fine:
   
   ```bash
   readarray -t z < <(for x in "a 1" "b 2" "c 3"; do echo $x; done;); for y in "${z[@]}"; do echo >&0 "->$y"; done
   ```
   
   In the above examples, I'm using the `for x` loop to simulate an input file.

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