I'm wondering whether this (From https://www.digitalocean.com/community/tutorials/how-to-read-and-set-environmental-and-shell-variables-on-a-linux-vps):
env VAR1="blahblah" command_to_run command_options
Is the same thing as:
VAR1="blahblah"
export VAR1
command_to_run ...
No, it's not the same.
env VAR1="blahblah" command_to_run command_options
runs command_to_run with VAR1="blahblah" in its environment; the containing shell's environment isn't affected.
VAR1="blahblah"
export VAR1
command_to_run
adds VAR1="blahblah" to the shell's environment and makes it available for all subsequent commands, including command_to_run.
