Set variables in parallel in bash -

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here's example program:

#!/bin/bash  x in {1..5}   output[$x]=$(echo $x) & done  wait  x in {1..5}   echo ${output[$x]} done

i expect run , print out values assigned each member of output array, prints nothing. removing & correctly assigns variables. must use different syntax achieve in parallel?

this

output[$x]=$(echo $x) &

puts whole assignment in background task (sub-process) , that's why you're not seeing result, since it's not propogated parent process.

you can use wait wait subprocesses, returning results (other status codes) going difficult. perhaps can write intermediate results file, , collect results after processes have finished ? (not nice, appreciate)


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