Array 陣列

Learning

Samples

陣列長度：${#str_list[@]}
陣列內容：${str_list[@]} 或 ${str_list[*]}

#!/bin/bash
str_list=("aaa" "bbb" "ccc" "ddd")
echo ${#str_list[@]}
for i in ${str_list[@]}
do
  echo "$i"
done

# Script to split a string based on the delimiter
my_string="Ubuntu;Linux Mint;Debian;Arch;Fedora"
IFS=';' read -ra my_array <<< "$my_string"

#Print the split string
for i in "${my_array[@]}"
do
    echo $i
done

# Script to split a string based on the delimiter
my_string="Ubuntu;Linux Mint;Debian;Arch;Fedora"  
my_array=($(echo $my_string | tr ";" "\n"))

#Print the split string
for i in "${my_array[@]}"
do
    echo $i
done

local n=0

until [[ $n -eq ${#asr_array[@]} ]]; do
    asr=${asr_array[$n]}
    echo $asr
    let n++
done

移除陣列內容

# Delete the 3th element of the array
unset str_list[3]

String to Array

while read c1 c2 c3 c4 c5 c6;do
    day="$c1"
    ncalls="$c4"
    scalls="$c6"
    asr=$(echo "scale=2; $scalls * 100 / $ncalls" | bc)
    day_str+="$day "
    asr_str+="$asr "
    calls_str+="$ncalls "
done < $tmpfile

read -ra day_array <<< "$day_str"
read -ra asr_array <<< "$asr_str"
read -ra calls_array <<< "$calls_str"