{"id":2764,"date":"2019-11-20T05:33:19","date_gmt":"2019-11-20T05:33:19","guid":{"rendered":"http:\/\/www.incredigeek.com\/home\/?p=2764"},"modified":"2019-11-20T05:33:20","modified_gmt":"2019-11-20T05:33:20","slug":"an-experiment-in-randomness","status":"publish","type":"post","link":"https:\/\/www.incredigeek.com\/home\/an-experiment-in-randomness\/","title":{"rendered":"An Experiment in Randomness"},"content":{"rendered":"\n

You can print a random number between 1-10 with the following command.<\/p>\n\n\n\n

echo $((( RANDOM % 10 )+1))<\/pre>\n\n\n\n
Creating random numbers<\/h2>\n\n\n\n
If you change it so the output is between 0-9 you get decently even results.<\/p>\n\n\n\n
cat \/dev\/null > random.txt && cat \/dev\/null > random2.txt && for ((i=0; i<=9999;i++)); do echo $((( RANDOM % 10 ))) >> random.txt ; done && for ((i=0; i<=9;i++)); do echo $(grep -c $i random.txt) $i; done  |  sort -n<\/pre>\n\n\n\n
Note that you can change the command to be between 1-10, but all the 1’s in 10 will get grepped and counted as 1’s.<\/em><\/p>\n\n\n\n
The above command should return something similar to the following.  Sorted by lowest occurrences first.<\/p>\n\n\n\n
943 5\n945 8\n985 7\n996 2\n997 6\n1005 3\n1012 9\n1016 4\n1033 0\n1068 1\nadmin@localhost:~$<\/pre>\n\n\n\n
We can plot them in LibreOffice Calc.<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
<\/p>\n\n\n\n
Plot with GnuPlot<\/h2>\n\n\n\n
Gnuplot is another utility that you can use to plot numbers.  Example is below.<\/p>\n\n\n\n
cat \/dev\/null > random.txt && cat \/dev\/null > random2.txt && for ((i=0; i<=9999;i++)); do echo $((( RANDOM % 10 ))) >> random.txt ; done && for ((i=0; i<=9;i++)); do echo $i $(grep -c $i random.txt) ; done  |  sort -n | gnuplot -p -e 'plot \"\/dev\/stdin\"'<\/code><\/pre>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
You can print a random number between 1-10 with the following command. echo $((( RANDOM % 10 )+1)) Creating random numbers If you change it so the output is between 0-9 you get decently even results. cat \/dev\/null > random.txt … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[809],"tags":[757,810,7,752],"class_list":["post-2764","post","type-post","status-publish","format-standard","hentry","category-random","tag-echo","tag-gnuplot","tag-linux-2","tag-random"],"_links":{"self":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/2764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/comments?post=2764"}],"version-history":[{"count":3,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/2764\/revisions"}],"predecessor-version":[{"id":2811,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/posts\/2764\/revisions\/2811"}],"wp:attachment":[{"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/media?parent=2764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/categories?post=2764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.incredigeek.com\/home\/wp-json\/wp\/v2\/tags?post=2764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}