get a random 0/1, use it for on/off, yes/no

echo $[RANDOM % 2]
use it to add a random boolean switch to your script
Sample Output
bash-4.1$ echo $[RANDOM % 2]

bash-4.1$ echo $[RANDOM % 2]

By: anapsix
2013-05-25 19:15:57

What Others Think

Interesting! Mind explaining what $[ ] does here? I tried $( ) but it didn't work! Do the square brackets invoke something special? Thanks!
iiAtlas · 480 weeks and 5 days ago
@iiAtlas: It is as deprecated bashism for $((EXPRESSION))   →
michelsberg · 480 weeks and 5 days ago
Interesting yes but can you describe a situation when you would need this?
techie · 479 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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