awk后来在bash中拆分使用数组(Awk split use array later in bash)

awk后来在bash中拆分使用数组(Awk split use array later in bash)

如果我有这个awk命令......

echo $line | awk '{split($0,array,"|")}'

...我怎样才能在bash程序中使用数组？ 如果我稍后尝试从阵列中打印出信息，那么它就是空的。

If I have this awk command...

echo $line | awk '{split($0,array,"|")}'

...how can I use array later in the bash program? If I try to print out information from the array later it's just empty.

最满意答案

如果打印它，你可以在awk之外使用awk数组内容：

IFS=$'\n' read -d '' -r -a line < <(echo 'o|p|s' | awk '{split($0,array,"|"); for (i in array) print array[i]}') declare -p line # OUTPUT: declare -a line='([0]="o" [1]="p" [2]="s")'

You can use awk array contents outside of awk if you print it:

IFS=$'\n' read -d '' -r -a line < <(echo 'o|p|s' | awk '{split($0,array,"|"); for (i in array) print array[i]}') declare -p line # OUTPUT: declare -a line='([0]="o" [1]="p" [2]="s")'