Hi! I made an affirmations web app, using AI generated photos of animals (playground), and mostly chatGPT for the affirmations themselves.

For those curios, the backend is Go+Echo+Templ, frontend is Materialize+jQuery.

Hello! I'm the author. This is similar in vein to useful-sed, a surprisingly successful github repo (which can be found here https://github.com/adrianscheff/useful-sed).

If you have any questions, suggestions or simply feedback - let me know.

Thank you!

Hey there! Thank you for the input! I'm sorry you feel that asking for donations is unwarranted. I agree wholeheartedly that FSF deserves all the love it can get. I'm not asking to get rich or take the spotlight - I'm asking so I can keep improving that guide & create more.

I didn't added explanations (although I wanted too) since this was intended as a quick tips page for sed. I think there are much better guides than I could ever make (including the info page). In a way it works better since it's more digestible.

Thank you for the link you provided - it looks awesome! I'll look into it and append the existing guide if needed (while giving credits of course)

Thank you for the constructive feedback, I've corrected the mistakes pointed out. I've also changed -r to -E based on your (and some other people's) advice.

Ha, you got me there. I remembered incorrectly that sed scripts where bad practice and one should use bash instead. I've corrected the mistake.

What other good practice suggestions do you have? (if you're comfortable answering and have the time)

Haha, one of the reasons I wrote this. It's also a way of practicing and reminding myself sed.

I'm glad to hear that. I'm learning (and re-learning) sed myself, specially after long periods of not using it. So in a way I've written it for me too.

Btw, there is one more use case of a variable delimiter which is more arcane (and you can combine it with the other custom delimiter) `sed -s '\_/bin/bash_s:grep:egrep:' myfile.txt`

Thank you for the feedback and the constructive criticism. Regarding the hold space I found it very confusing to use and understand. IMO it represents the 80/20 of sed (80% effort for 20% results).

You're right, I'm using -r even when it's not necessary. To my defense I think it's a good habit to have since without it regex expressions are painful to write. I didn't considered that using -E it's a better choice but I'll correct that now. (one might argue again that typing -r is easier than -E :D ).

Regarding the definition of words - I also thought of that when I wrote that snippet. I know it's not the complete regex for a word and that word regex patterns might differ. And I was probably a bit lazy - but I'll correct it presently.

I'd also like to say that I didn't write this as an absolute and ultimate reference. If I'm honest I wrote this as much to teach others as to solidify this knowledge myself. Now since it seems it gained traction I'm kinda obligated to make this better, no? Darn. :)

PS: if you'd like to help me make this better please submit a pull request or leave a comment here. Looking at your profile I see that you try to limit your online time so I probably shouldn've asked. :P

Most examples that use '#!/bin/bash' should be rewritten to use '#!/usr/bin/sed -f'.

Example "multiple replacements":

    #!/usr/bin/sed -f
    s/a/A/
    s/foo/BAR/
    s/hello/HELLO/

Save it as replace.sed; chmod u+rx replace.sed; ./replace.sed myfile.txt

Thanks, I've modified to use .sed scripts instead. I used bash scripts because I remembered (incorrectly it seems) that sed scripts were unsafe.

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.

No mention of ';' to have multiple command on one line.

Example:

    sed '10{p;q;}' myfile.txt

Thank you for your feedback! Personally I very rarely use the ; operator since it works badly with braces and commands that use files. However I've added an example using the ; operator.

PS: May I humbly point out that the command you provided will actually print up to line 10 and then a duplicate line. Like I said, unexpected (even though it seems logical). :)

Yes: forgot -n

I'm seeing all kinds of negative feedback here but wasn't my case. (some people saying that it's created to steal your photos which is a bit absurd).

Sure enough, it asked me to create an account which is understandable, I don't complain. I have a multitude of Google accounts and I used one of them.

I waited for around 10-15 minutes and I used a photo of a statue of Caesar. The results were very, very impressive. https://imgur.com/WOeOYR3

Awesome job OP. There must be some amazing tech at work!

Interesting and congratulations for launching! :)

ON a side note the bags look ugly, I was expecting them to be resized and appearing as held by hands. Instead I got this: https://imgur.com/a/xsJAKR6

Is this something you're aware of? PS: I really like the wrinkling on clothes.

Ah, the bag feature is very new, and sth we're still working on to improve. Sorry for the disappointment, but thx for the feedback.

Why release something this awful? There is zero contextual awareness of bag type/shape and model hand positioning