使用换行符将 bash 数组写入文件
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时间：2020-09-10 00:28:02 来源:igfitidea点击:
Write bash array to file with newlines
提问by H?kon H?gland
How do I write an array to a file such that each element is separated by a newline?
如何将数组写入文件，以便每个元素由换行符分隔？
The following does not work:
以下不起作用：
testa=( 1 2 3 )
echo "${testa[@]}" > file.txt
(now the elements are separated by spaces on a single line)
I would like avoid writing a forloop for this...
（现在元素在一行上用空格分隔）我想避免for为此编写循环......
回答by anubhava
Use printfinstead:
使用printf来代替：
printf "%s\n" "${testa[@]}" > file.txt
cat file.txt
1
2
3
