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37 lines
937 B
Markdown
37 lines
937 B
Markdown
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# read
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> 从标准输入（或文件）读取一行并将单词分配给变量。
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> 更多信息：<https://manned.org/read.1p>.
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- 读取键盘输入的数据赋值给变量：
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`read {{变量}}`
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- 将您输入的每一行存储为数组一个元素：
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`read -a {{数组}}`
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- 指定要读取的字符数，将数据赋值给变量：
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`read -n {{字符数}} {{变量}}`
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- 将多个数据依次赋值给多个变量：
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`read {{_ 变量1 _ 变量2}} <<< "{{The surname is Bond}}"`
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- 读取键盘输入的数据赋值给变量，不对\进行转义：
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`read -r {{变量}}`
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- 键盘输入前显示提示语：
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`read -p "{{提示语：}}" {{变量}}`
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- 静默模式（如果输入来自终端，则不回显字符）读取键盘输入的数据赋值给变量：
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`read -s {{变量}}`
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- 从标准输入读取每一行进行操作：
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`while read line; do {{echo|ls|rm|...}} "$line"; done < {{标准输入|路径/到/文件|...}}`
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