[Trisquel-users] Re : Removing unwanted carriage returns

[lcerf]

Besides being hard to learn, and unless I am mistaken, 'vim' loads the entire  
file into main memory before the user can input commands, in an interactive  
way.  Like any text editor.  That does not scale to million-line files or to  
complex commands you want to frequently apply on different files.  In that  
situation, non-interactive text-processing commands, typically called by a  
Shell script, become necessary.

'sed' (which compete with 'vi' for the worst syntax ever) or 'awk' (e.g.,  
redefining RS) can handle multiline patterns.  Both are actually  
Turing-complete.  However, in that case, it appears that a simpler Nmap  
output can be processed:  
https://nmap.org/book/output-formats-grepable-output.html