From 9fb350dc7c8cc5259ef24e0cb097031179fab1d6 Mon Sep 17 00:00:00 2001 From: Tom Ryder Date: Tue, 9 Aug 2016 17:15:40 +1200 Subject: Improve commenting/exit handling in binscripts --- bin/rndi | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'bin/rndi') diff --git a/bin/rndi b/bin/rndi index 3dc8689c..bf78951c 100755 --- a/bin/rndi +++ b/bin/rndi @@ -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 } -- cgit v1.2.3