Can you explain a little bit about command substitution?

Can you explain a little bit about command substitution?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, unix, topic-specific, systems

参考答案摘要

Command substitution is a method by which the command is substituted by its output. We can use this to assign the output to a variable. $ DATE=`date` $ echo "Date is $DATE" Date is Thu May 27 03:59:57...

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