New posts in Sed

Bash: Filter rows by line number

Perform sed operations on given line numbers

printf, awk ... How to format a number with space to the thousands

Separate numbers, strings from one line using bash

How can I merge the lines of two files by having common headers?

Replace string in a huge (70GB), one line, text file

How to grep lines which have more than specific number of special characters

Why can't I grep this way?

find and sed string in docker got error ` Device or resource busy`

Confused by sed output when using N. Can someone explain these results?