Replacement can be a marvelously precise process, so that details of shell ornamentation, tree rings in wood, and delicate structures in bone are accurately preserved.
替换可能是一个令人惊叹的精确过程，因此贝壳纹饰的细节，树木的年轮和骨的微妙结构都被准确地保存。
With a shell script, you can get more creative with the replacement, even providing a completely shell script-driven alternative to another command.
使用外壳脚本，您可以更创造性地处理替代，甚至为另一个命令提供完全由外壳脚本驱动的替代。
Debian Almquist Shell (dash) – Modern replacement of the Almquist shell for Debian-based Linux distributions.
Debian Almquist Shell（dash）：Almquist shell的现代替代品，用于Debian系列的linux发行版。
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