HakTip - Bash Basics: Turn Long Commands into Scripts 

forget the haters I'm just starting out and this is good information well presented, thank you very much indeed.... subbed!

Back when Netflix sponsored Hak5, those were the days.

i once made a batch script in windows that boots up a tethered apple device in DFU mode. i was pretty happy with myself :D this rule generally applies to bash scripts: if you don't know how to do it yourself, you wont be able to tell your computer how to do it by itself.

Wouldn't bash be /bin/bash? /bin/sh is a different interpreter, I think.

ty for the ctrl-x ctrl-e never knew this: btw: you can change the default edit doing this update-alternatives --config editor

You should do a tutorial on intelligent scripts, with if, then and else. I love them, because they make scripts safer to do, as they can depend on conditions to run. (Like, if you're not root, it won't even run.) And of course, variables. Variables are the most important thing with making scripts. It's what makes us as lazy as we are.

Just a little history on the name: BASH was called so because it was what replaced it's previous UNIX shell, the "Bourne Shell" which was created by Stephen Bourne, the Bourne Again Shell was then named such by Brian Fox as a tribute to the predecessor.

Why not use Emacs, which have many short commands in common with Bash. Usefull command: M-x shell C-x C-f (C-x extended command C-f fined file) C-x C-s (C-w save file) C-x C-c (C-c quit) C-x b C-x C-b (b buffer C-b list buffers) C-a C-e C-k C-w C-y (C-a first C-e end C-k kill line C-w cut C-y past) Tab to expand filename M-/ find next occurance of string just typed. There are much more. The commands have logical names. And you can make commands "stronger" with C- and M-

@bobicool You could also use command line arguments, like so: ping $1 | while [...] and then run it with "./pingdate 8.8.8.8" or whatever ip you wanted

It is very help full to me.. thank u very much

@Coolmax71 As i wrote, it's easier to remember commands in Emacs than in vim. AND the key bindings in Bash is the same as in Emacs :)

Great

@tylerzacc If you don't mind me asking, could you post it somewhere? It sounds very interesting.

@buumi3 to use update-alternatives only work in Debian (and distributions created from Debian). It also set default editor for ALL users on your machine. With my sollution, you only change for this user. Better to use environment variables instead. They only change for you. export EDITOR="value" makes all commands started from this shell have "value" as value of EDITOR. unset EDITOR removes variable EDITOR from this shell and all commands started from this shell.

@buumi3 Better to use environment variablers. Bash (and other) first check VISUAL., and uses the value as the command. If no VISUAL, check EDITOR and use that if exists. If not, start default editor. So, start an Emacs in background (with "emacs &") and type M-x server-start (or start from ~/.emacs, se man) Set EDITOR="emacsclient -t" and/or set VISUAL="emacsclien -c" Go on and now try C-x C-e in Bash. Exit emacs with C-x # Now editing with emacs is fast.

What happened to the wireless Series?????

@andjack thanks for the info :-)

@blake9753 Nope. It will write whatever you type into the variable $randomvar

it didn't work? im going to through it into a curl -P | xargs.

hey! Loving the new series... i wanted to install crunchbang linux on a VERY old netbook of mine but it doesnt have a cd drive. when i tried to install it from usb i get an error saying it cant find the cd! help!!!!

nano? vim ftw! (;

I have never seen darren teach us gcc :)))

Darren needs to send me a hak5 skin for my netbook!!!!!!!!!

BASH is Bourne Again SHell.

I know this is really old but I'm just learning about this stuff and these episodes have helped a lot but why am I getting my permission denied when I try to save the file?

The shebang should be /bin/bash not ksh

Bourne again shell. Misspellings make me angry more than your lack of including all the other linux shells.

so muxh linux!!! sponsored by Netflix?

WPA hacking?

@blake9753 a blake. Yep, just type "read randomvar" this will allow the user to input information, and then save it into the variable "$randomvar"

@afonso360 use a VPN service

should have mentioned how to use variables, pretty pointless without variables

:D

8.8.8.8 = One of Google's DNS servers. Don't use if you don't want to be tracked by Google. Just kidding....

i woud like netflix but im in europe