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Well done research/troubleshooting.
Thanks for sharing!

Glad it worked out for you!
Cheers!

Please show us the last two lines in your input file that were successfully processed by awk and the next three lines in your input file. Also, please show us the output you get from gawk for those...

Are you using awk's native lshift/rshift/or functions OR did you provide your own implementations (as previously discussed)?
Are there any other ip ranges with the 128.x.x.x addresses that don't...

congrats.
If you paid attention to the thread, I've been testing the latest version of the script with data files either

1.62.189.215 1.62.189.222
4.0.25.146 4.0.25.148
4.0.26.14 4.0.29.24...

You're right - the FS definitions are not the same - I've overlooked something in your definition.
If you are to handle 2 possible formats:

address ranges separated by - ( dash surrounded by...

Good catch - thanks for the perseverance!
how about:

function range2cidr(ipStart, ipEnd, result, bits, mask, newip) {
bits = 1
mask = 1
while (bits < 32) {
newip =...

sorry, these 2 lines should read:

!/^#/ && NF {$(NF-1)= sanitize($(NF-1)); $NF = sanitize($NF)}

!/^#/ && NF {print range2cidr(ip2dec($(NF-1)), ip2dec($NF))}

Let me know how it goes...
...

you can get rid of all the grep-s/sed-s and pipe it directly into the modified script (without any temp file).
Good luck.

mawk is indeed designed for speed above all else. Occasionally its features are lacking but that can usually be worked around.

Looks like an old branch of gawk with non-POSIX extensions.
Probably a buggy and/or not so forgiving as gawk...
The BUGS section at the bottom of the man page might give some hints of what can be...

Hi,

Recently I had to convert a 280K lines of ip ranges to the CIDR notation and generate a file to be used by ipset (netfilter) for ip filtering.

Input file:
000.000.000.000 -...

are you sure you're getting the desired results?
I'm getting:

222.104.193.5/32
222.106.31.112/32
222.106.31.123/32
222.126.13.224/32
222.191.251.186/32

on your sample/modified file:
...

Did you search here first?

https://www.unix.com/shell-programming-and-scripting/233825-convert-ip-ranges-cidr-netblocks.html

This thread is a treasure - stealing.
Thanks for sharing

Post #2 in the thread contained the written or() lshift() and rshift() functions if they're missing in the version of awk you're using.

Why do you have #!/bin/sh at the beginning of awk code? It doesn't belong there. Hopefully it's doing nothing right now.

awk -f command inputfile > filename

This is not how web developers process the DOM in HTML, especially on the client side.

Should I assume you are processing the value on the server side?

Either way, your post confused me. On...

You can try my awk XML processor (https://www.unix.com/unix-for-beginners-questions-and-answers/266171-general-purpose-xml-processing.html).

awk -f yanx.awk -e 'TAG == "INPUT" &&...

Had you tried my earlier suggestion, it worked. With one correction -- the HTML you posted was wrong, the tag is not named 'token', it is named 'sessionKey'.

So my final code:

$ awk -f...

How about:
sed '/SECTION2-BEGIN/,/SECTION2-END/s/]/]]]/g' infile

perl -pe 'if(/SECTION2-BEGIN/../SECTION2-END/){s/\]/]]]/g}' file