Re: Setting environment variables by reading them from a configuration file

A trick that I've picked up from somewhere:

# Put this in the beginning of your program
if (@ARGV && $ARGV[0] eq '--environment_set') {shift}
else {@ARGV = map {s/'/'"'"'/g; "'$_'"} @ARGV;
      exec "source '$fname'; exec '$0' --environment_set @ARGV"}
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