在bash中将前缀和后缀添加到$ @ [英] Add prefix and suffix to $@ in bash

问题描述

如何在$@上添加后缀和前缀?

How to add suffix and prefix to $@?

如果执行$PREFIX/$@/$SUFFIX，则仅在第一个参数中获得前缀和后缀.

If I do $PREFIX/$@/$SUFFIX, I get the prefix and the suffix only in the first parameter.

推荐答案

我会使用shell

I would use shell [ parameter expansion ] for this

$ set -- one two three
$ echo "$@"
one two three
$ set -- "${@/#/pre}" && set -- "${@/%/post}"
$ echo "$@"
preonepost pretwopost prethreepost

注释

• #与开头匹配
• %与结尾匹配
• 在${@}周围使用双引号会将每个元素视为一个单独的单词.因此替换发生在每个位置参数上

• The # matches the beginning
• The % matches the end
• Using double quotes around ${@} considers each element as a separate word. so replacement happens for every positional parameter

这篇关于在bash中将前缀和后缀添加到$ @的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！