Add files via upload

s3-bucket-unique-name.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# 2021 Dave Bechtel
+# REQUIRES: sha1sum, sha256sum, tr, cut
+
+echo "$0 - arg1=prefix + [optional] arg2 = # of pad chars (limit 63)"
+arg="$1"
+prefix="${arg,,}" # LC 
+
+# int
+declare -i pad=30 # chars, limit 63
+[ "$2" = "" ] || pad=$2
+[ $pad -gt 63 ] && pad=63
+
+# must consist of lowercase letters, numbers, periods, and hyphens
+
+out1=$(echo "$(date)$prefix" |sha1sum) 
+sleep 1 
+#out2=$(echo "$prefix$(date)" |sha1sum)
+out2=$(echo "$out1$((1 + $RANDOM % 99))$(date)" |sha256sum)
+# include random number from 1-99 to try and prevent collisions
+
+result=$(echo "$prefix-rbn-$out2" |tr ' ' '.' |cut -c 1-$pad)
+
+echo '         1         2         3         4         5         6  6'
+echo '123456789012345678901234567890123456789012345678901234567890123'
+echo "$result"