NBash

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#!/bin/bash
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RAND_NUMBER=$((1 + RANDOM % 100))
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readonly RAND_NUMBER
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step=0
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array=()
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while [ $step -le $RAND_NUMBER ]
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do
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    array+=("$step")
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    step=$((step + 1))
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done
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echo "${array[@]}"
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echo "-----------------------------------------"
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unset array
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for ((step = 0; step <= $RAND_NUMBER; step++))
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{
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    array+=("$step")
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}
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echo "${array[@]}"
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# Генератор паролей
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echo "-----------------------------------------"
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password=""
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while [[ ${#password} -ne 30 ]]
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do
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    rand_char=$(shuf -e -n1 {A..Z} {a..z} {0..9})
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    password+="$rand_char"
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done
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echo "Ваш новый пароль: $password"