diff options
Diffstat (limited to 'bin/rndi')
-rwxr-xr-x | bin/rndi | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -2,13 +2,22 @@ # Get a low-quality random number between two integers. Depending on the awk # implementation, if you don't provide a third argument (a seed), you might get # very predictable random numbers based on the current epoch second. + BEGIN { + + # Seed with the third argument if given if (ARGV[3]) { srand(ARGV[3]) } + + # If not, just seed with what is probably a date/time-derived value else { srand() } + + # Print a random integer bounded by the first and second arguments print int(ARGV[1]+rand()*(ARGV[2]-ARGV[1]+1)) + + # Bail before processing any lines exit } |