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需要我的随机效果来显示完整的线条

tag-icon • tag-icon bash scripts
需要我的随机效果来显示完整的线条

我正在编写一个用于随机预测的脚本，但不幸的是，该脚本并没有从两个随机列表（事物和效果）中获取整行，而是从每个列表中打印一个随机单词。有人可以告诉我如何让脚本从两个列表中打印整行吗？以下是我的脚本：

#!/bin/bash
# Random lists picks
# This is a script for picking random choices as a prediction.


Things="Walk
Song
Talk
Friend
Spontaneous act
Call"

Effects="will bless you
will lift your spirit
is healthy
can help
will touch you
will make you smile
is what what you need
makes a difference in your life
can add comfort
isn't necessarily without virtue
adds something to your day"



things=($Things)
effects=($Effects)

num_things=${#things[*]}
num_effects=${#effects[*]}

echo -n " A ${things[$((RANDOM%num_things))]} "
echo ${effects[$((RANDOM%num_effects))]}

答案1

在从变量创建数组时，您需要将IFS(内部字段分隔符) 变量设置bash为换行符，以便变量的每个换行符分隔条目都将被视为数组元素。在您的主脚本中，数组是根据默认值（即空格、制表符和换行符）\n分隔的变量条目创建的。IFS

简而言之，您需要将这两个数组声明行更改为：

IFS=$'\n' things=( $Things )
IFS=$'\n' effects=( $Effects )

因此，你的最终脚本是：

#!/bin/bash
# Random lists picks
# This is a script for picking random choices as a prediction.


Things="Walk
Song
Talk
Friend
Spontaneous act
Call"

Effects="will bless you
will lift your spirit
is healthy
can help
will touch you
will make you smile
is what what you need
makes a difference in your life
can add comfort
isn't necessarily without virtue
adds something to your day"



IFS=$'\n' things=( $Things )
IFS=$'\n' effects=( $Effects )

num_things=${#things[*]}
num_effects=${#effects[*]}

echo -n "A ${things[$((RANDOM%num_things))]} "
echo "${effects[$((RANDOM%num_effects))]}"

答案2

我认为您对数组的使用有一点误解。

#!/bin/bash
# Random lists picks
# This is a script for picking random choices as a prediction.

# Create array "things"
things=('Walk'
'Song'
'Talk'
'Friend'
'Spontaneous act'
'Call')

# Create array "effects"
effects=('will bless you'
'will lift your spirit'
'is healthy'
'can help'
'will touch you'
'will make you smile'
'is what what you need'
'makes a difference in your life'
'can add comfort'
"isn't necessarily without virtue"
'adds something to your day')

# Place the array size
num_things=${#things[@]}
num_effects=${#effects[@]}

echo -n " A ${things[$((RANDOM%num_things))]} "
echo "${effects[$((RANDOM%num_effects))]}"

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