There is, and in the second topic below we’ll dive into this.
It depends to a good extent on developer preference.
Both mini-scripts result in the same empty output, astrueis notuntrue.
And this is justonedeveloper writing it inhis way.
From these examples it is clear that your mileage will vary over time.
sleep 1 # First sleep
sleep 1 # Second sleep
Single Quotes or Double Quotes?
For the second example however, the output isHello world.
Thus, our subshell executedecho ‘Hello world’of which the output isHello world.
Note that we changed the double quotes inside the subshell to single quotes.
This is not necessary!
This is not the case however.
This shows some of the programming power of Bash.
