BASH SCRIPTING THREAD

>>58329221
OK, so what I'll be using to get some random numbers is a commnand that is probably in all your bash shells called shuf. Let's tell shuff to spit out some random numbers between 1 and 255. 4 of them to be exact.

$ shuf -i 1-255 -n 4
42
140
206
41

Well it's a start, but the numbers aren't very usable like that.

>>58329272
So what we want to do is get all the numbers on a line, with dots inbetween them.

I'll use tr.
The reason the numbers are on different lines is there is an invisible character that tells the terminal to go to a new line. It's symbolised by this "\n".

So we use tr to find these characters and replace them. We'll be doing this by putting a pipe symbol at the end of the last command to pipe the output into tr, then handling it.

$ shuf -i 1-255 -n 4|tr '\n' "."
180.181.147.18.

Now that's a lot more usable, but it unfortunately has the trailing dot after the last number, making it unusable in other scripts. And the four different fields fo the IP can be 1 or 3 characters, so you can't just slap a character specific limit on it. What would you do?

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2MB, 1280x720px

>>58329347
What I'm going to do is instead of straight away replacing the newlines with dots, replace them with spaces. Then feed them into awk, so I can treat each space seperated field as a variable to echo, and stick the dots inbetween them then.

$ shuf -i 1-255 -n 4|tr '\n' " "|awk {'print $1 "." $2 "." $3 "." $4 '}
174.73.231.143

Hey, it works! So now we have a randomly generated IP address.

What do you think should be done with it /g/?

Can you tear yourself away from your lame consumerist advertising threads? Would you rather talk about headphones?

You make a thread and ask people to write a script together and then you samefag the fucking thing yourself

>>58329781
I was hoping people suggest better ways to do things. Anyway I stopped now until I get some more input because I think this is pointless. I'm betting zero people here know how to bash script further than ls and rm -rf / --no-preserve-root

I'm interested... Just don't know bash...

I'm making an email marketing bash script.

- Scrapes a target website for emails.
- Scrapes relevant info that I can use to personalize the email, their FB presence, Twitter followers, how often they post, if they have a blog, etc.
- Sends mail to all emails scraped introducing myself and asking if they are the right person to talk to.

>>58330591
You're a faggot dude. I hate spammers.

How you doing it, wget + grep?