Generating a random number between 0.5 and 1.5 in bash

Asked Jan 11 '21 at 04:05

Active Jan 11 '21 at 05:33

Viewed 227 times

I need random numbers to three decimal places like:

0.624, 1.035, 0.869, 1.324

What I am using is:

"0.$(($RANDOM%1000+500))"

However, in this case, all the values less than 1 are correct (i.e. 0.917,0.917,0.917,0.855), but the values greater than 1 are incorrect (i.e 0.1195,0.14340.1434) as I append 0. At the beginning of the random number produced.

Thanks.

edited Jan 11 '21 at 04:14

asked Jan 11 '21 at 04:05

Pulkit Mundra

4

`LC_ALL=C seq 0.5 0.001 1.5 | shuf | head -n 4`? – Cyrus Jan 11 '21 at 04:19
1

Generate a number between 0 and 999. If the number is >= 500 prepend "0." and if the number is < 500 prepend "1." – rossum Jan 11 '21 at 14:27

Generating a random number between 0.5 and 1.5 in bash

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