Learn me something about bash that I don't know. Tip : I

You can use it to cd into your code directory. I wrote a script to do just that.

>learn me something
>brang me something
You would be better off improving your knowledge of the English language.

>>57488879
#! is called shebang xddddddddd

>>57488879
> Learn me

Teach me*

File: time to stop.gif (107KB, 50x50px) Image search: [Google]

107KB, 50x50px

>>57488879
at the top of your .bashrc goes this:

shopt -s autocd

Now you can type
/tests/this/
If it is a file, then execute it like before. If it is a folder, then you cd into it.

>>57493756
damn, remove the last /

Iterate without seq

{1..5}

File: download.jpg (5KB, 192x185px) Image search: [Google]

5KB, 192x185px

>>57494091
didn't know seq existed

for accepts

{ ...; }

instead of

do ...; done

but while, until, and if don't.

for i in {1..10}; { echo $i; }

You can use for without

in list

, it acts like

in "$@"

f() {
    for a; do
        echo $a
    done
}

f {1..10}

find /var/www/html/ -type f -name "*.php" -exec grep -Hn "base64_" \;

find dem comps

Powershell is better than bash

>>57488879
Some bash fun facts:

>for loops accept any compound command, not just brace groups:

f() for i; do echo "$i"; done

>some builtin names have special parsing rules that functions of the same name will inherit

$ foo() { echo "$*"; }
$ foo a=(b)
bash: syntax error near unexpected token `('

$ declare() { echo "$*"; }
$ declare a=(b)
a

>You can create a file called /bin/bash$'\r' as a wrapper script to have it automatically run scripts with Windows CRLF line terminators

>>57488879

wget a.li/fe

>>57488879
Fuck bash. POSIX shell 4lyfe.

>>57489029
holy shit

>>57498894
renew your domain fag

>>57488879
Daily reminder bash aliases or functions may invoke binaries invoked/combined from it, so in such case are explicitly forbidden.
So it looks like its bash builtins and keywords.
Daily reminder builtins may also have an associated binary, for example

type -a printf

and in such a case, would also be excluded.

>>57498500
Fun fact: The local builtin does the same thing as declare, but will define "local" variables only recognized by a function and it's children.
See

help local

Set $EDITOR to your favourite terminal editor (vi, emacs, w/e), and use ^x + ^e to edit whatever is in your prompt, will get run on exit.

>>57493763
Too late damn you.
The nerve gas.
It burns.

>>57488879

Ctrl + l (I know is terminal stuff but still use full)

>>57488879
learn me :D

>>57499607
Ran muh linux mint for months like that, and it werked fine, before I realized there's "update-alternatives"

sudo update-alternatives –config editor

Also, there's FCEDIT for the very cool fc builtin.

File: op.jpg (19KB, 480x480px) Image search: [Google]

19KB, 480x480px

>>57488879
>learn me
>>learn me
>>>learn me
>>>>learn me
>>>>>learn me
>>>>>>learn me
>>>>>>>learn me
>>>>>>>>learn me
>>>>>>>>>learn me
>>>>>>>>>>learn me
>>>>>>>>>>>learn me
>>>>>>>>>>>>learn me
>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>>learn me
>>>>>>>>>>>>>learn me
>>>>>>>>>>>>learn me
>>>>>>>>>>>learn me
>>>>>>>>>>learn me
>>>>>>>>>learn me
>>>>>>>>learn me
>>>>>>>learn me
>>>>>>learn me
>>>>>learn me
>>>>learn me
>>>learn me
>>learn me

>>57499876
RUN WHILE YOU CAN

>>57499818
fuck. it's two dashes.
--config

Fun with bash:
compgen -a will list you're aliases
compgen -A function will list functions (-a is already taken)
compgen -b lists builtins (help <builtin>)
compgen -k keywords (help <keyword>)
compgen -c commands (man <command>)
Play with the whole shebang:
compgen -abckA function | grep foo
and maybe compgen -c | less because there's quite a few.

You wanna learn something new? zsh is better than bash.

>>57500176
compgen -a aliases (type <alias>)
compgen -A function ( -f is for file)

-a alias
-b builtins
-c commands
-d directory
-e exported shell variables
-f file
-g groups
-j jobs
-k keywords
-s service
-u userAlias names
-v shell variables

>>57488879
The following lines are all equivalent:
> >file echo hi hello
> echo >file hi hello
> echo hi >file hello
> echo hi hello >file

File: 847432f193ac80cac352cffd2547f123.png (44KB, 184x200px) Image search: [Google]

44KB, 184x200px

>man [
is this actually allowed?

>>57501383
Sure.

>>57501261
Damn. I've only ever used the last one.

>>57501383
type ! { [ [[

File: gooby.png (42KB, 386x269px) Image search: [Google]

42KB, 386x269px

>>57501499
>this is a fork bomb

: is the best command. (It always succeeds).
help :

>>57501499
type . : [ [[ ]] ! { }

>>57501527
needs more ()

>>57501459
There's really no reason to use anything but the last one. This is more like something to look out for because it might happen in your script without you wanting it to.

File: dr-mccoy-and-captain-kirk-approve.gif (1MB, 300x226px) Image search: [Google]

1MB, 300x226px

>>57501709

petition to rename bin to ebin when

>>57501959
u mean sbin, right?

#!/usr/bin/env bash