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A comment on Useful sed scripts and patterns. Parent comment

Re:Useful sed scripts and patterns by chasil on Friday November 12, 2021 @09:39AM (#29199643)
CentOS 7's sed doesn't support -E, but CentOS 8 does. That might cause some confusion.

Also, FYI, this is the link for the POSIX specification for sed:

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/s...

Notice that -i is not POSIX.

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