Why not take some time to install GNU sed 3.02.80 now?
现在为什么不花些时间安装GNU sed 3.02.80呢？
Every Linux distribution has GNU sed, or at least should.
每一个Linux发行版都有(或至少应该有)GNU sed。
After getting GNU sed 3.02.80 installed, I was finally ready to go.
安装完gnu sed3.02.80之后，我就完全准备好了。
Fortunately for us Linux users, one of the nicest versions of sed out there happens to be GNU sed, which is currently at version 3.02.
对Linux用户来说幸运的是，最好的sed版本之一恰好是GNU sed，其当前版本是3.02。
Some (but very few) of the most advanced examples you'll find in my upcoming, follow-on articles in this series will not work with GNU sed 3.02 or 3.02a.
在即将出现的本系列后续文章中，某些（但非常少）最高级的示例将不能在GNU sed 3.02或 3.02a 中使用。
GNU sed is popular not only because its sources are freely distributable, but because it happens to have a lot of handy, time-saving extensions to the POSIX sed standard.
GNU sed之所以流行不仅因为可以自由分发其源代码，还因为它恰巧有许多对POSIX sed标准便利、省时的扩展。
GNU sed is popular not only because its sources are freely distributable, but because it happens to have a lot of handy, time-saving extensions to the POSIX sed standard.
GNU sed之所以流行不仅因为可以自由分发其源代码，还因为它恰巧有许多对POSIX sed标准便利、省时的扩展。
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