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minor fixes, updates

- signed-off-by: trimstray <trimstray@gmail.com>
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trimstray hace 4 años
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@@ -47,8 +47,16 @@
- they can make dd is not a disk destroyer
- they know that `#!/usr/bin/env bash` superior to `#!/bin/bash`
- they know that `su -` logs in completely as root
- they miss and cry for **Slackware** on production
- they love the old admin nix-world

## :ballot_box_with_check: Todo

- [ ] Add useful shell functions
- [ ] Add one-liners for collection tools (eg. CLI Tools)
- [ ] Add Ninja Admins T-Shirt stickers
- [ ] Generate Awesome Ninja Admins book (eg. pdf format)

## Ninja Admins Collection

#### CLI Tools
@@ -127,7 +135,6 @@ for transferring data with URLs.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://censys.io/"><b>Censys</b></a> - platform that helps information security practitioners discover, monitor, and analyze devices.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.shodan.io/"><b>Shodan</b></a> - the world's first search engine for Internet-connected devices.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://viz.greynoise.io/table"><b>GreyNoise</b></a> - mass scanner (such as Shodan and Censys).<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.hardenize.com/"><b>Hardenize</b></a> - deploy the security standards.<br>
</p>

##### :black_small_square: Net-tools
@@ -139,6 +146,7 @@ for transferring data with URLs.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="http://ping.eu/"><b>Ping.eu</b></a> - online Ping, Traceroute, DNS lookup, WHOIS and others.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://network-tools.com/"><b>Network-Tools</b></a> - network tools for webmasters, IT technicians & geeks.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.url-encode-decode.com/"><b>URL Encode/Decode</b></a> - tool from above to either encode or decode a string of text.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.hardenize.com/"><b>Hardenize</b></a> - deploy the security standards.<br>
</p>

##### :black_small_square: Performance
@@ -200,6 +208,7 @@ performance of any of your sites from across the globe.<br>
##### :black_small_square: Systems

<p>
&nbsp;&nbsp;:small_orange_diamond: <a href="http://www.slackware.com/"><b>Slackware</b></a> - the most "Unix-like" Linux distribution.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.openbsd.org/"><b>OpenBSD</b></a> - multi-platform 4.4BSD-based UNIX-like operating system.<br>
&nbsp;&nbsp;:small_orange_diamond: <a href="https://hardenedbsd.org/"><b>HardenedBSD</b></a> - HardenedBSD aims to implement innovative exploit mitigation and security solutions.<br>
</p>
@@ -254,6 +263,7 @@ performance of any of your sites from across the globe.<br>
* [mount](#tool-mount)
* [fuser](#tool-fuser)
* [ps](#tool-ps)
* [top](#tool-top)
* [find](#tool-find)
* [diff](#tool-diff)
* [tail](#tool-tail)
@@ -261,6 +271,10 @@ performance of any of your sites from across the globe.<br>
* [pwdx](#tool-pwdx)
* [tr](#tool-tr)
* [chmod](#tool-chmod)
* [who](#tool-who)
* [screen](#tool-screen)
* [du](#tool-du)
* [inotifywait](#tool-inotifywait)
- **[HTTP/HTTPS](#http-https)**
* [curl](#tool-curl)
* [httpie](#tool-httpie)
@@ -273,7 +287,7 @@ performance of any of your sites from across the globe.<br>
* [netcat](#tool-netcat)
* [socat](#tool-socat)
* [lsof](#tool-lsof)
* [netstat](#tool-nestat)
* [netstat](#tool-netstat)
* [rsync](#tool-rsync)
- **[Programming](#programming)**
* [awk](#tool-awk)
@@ -308,6 +322,12 @@ true && { echo success;} || { echo failed; }
some_command > >(/bin/cmd_for_stdout) 2> >(/bin/cmd_for_stderr)
```

###### Pipe stdout and stderr to separate commands

```bash
(some_command 2>&1 1>&3 | tee errorlog ) 3>&1 1>&2 | tee stdoutlog
```

###### List of commands you use most often

```bash
@@ -419,6 +439,18 @@ find -type f -exec md5sum '{}' ';' | sort | uniq --all-repeated=separate -w 33

___

##### Tool: [top](https://en.wikipedia.org/wiki/Top_(software))

###### Use top to monitor only all processes with the specific string

```bash
top -p $(pgrep -d , <str>)
```

* `<str>` - process containing str (eg. nginx, worker)

___

##### Tool: [diff](https://en.wikipedia.org/wiki/Diff)

###### Compare two directory trees
@@ -481,8 +513,6 @@ ___
tr : '\n' <<<$PATH
```

___

##### Tool: [chmod](https://en.wikipedia.org/wiki/Chmod)

###### Remove executable bit from all files in the current directory
@@ -491,6 +521,44 @@ ___
chmod -R -x+X *
```

___

##### Tool: [who](https://en.wikipedia.org/wiki/Who_(Unix))

###### Find last reboot time

```bash
who -b
```

___

##### Tool: [screen](https://en.wikipedia.org/wiki/GNU_Screen)

###### Start screen in detached mode

```bash
screen -d -m [<command>]
```

___

##### Tool: [du](https://en.wikipedia.org/wiki/GNU_Screen)

###### Show 20 biggest directories with 'K M G'

```bash
du | sort -r -n | awk '{split("K M G",v); s=1; while($1>1024){$1/=1024; s++} print int($1)" "v[s]"\t"$2}' | head -n 20
```

##### Tool: [inotifywait](https://en.wikipedia.org/wiki/GNU_Screen)

###### Init tool everytime a file in a directory is modified

```bash
while true ; do inotifywait -r -e MODIFY dir/ && ls dir/ ; done;
```

<a name="http-https"><b>HTTP/HTTPS</b></a>

##### Tool: [curl](https://curl.haxx.se)
@@ -578,12 +646,19 @@ ___
###### Testing remote connection to port

```bash
timeout 1 bash -c "</dev/tcp/<host>/<port>" >/dev/null 2>&1 ; echo $?
timeout 1 bash -c "</dev/<proto>/<host>/<port>" >/dev/null 2>&1 ; echo $?
```

* `<proto` - set protocol (tcp/udp)
* `<host>` - set remote host
* `<port>` - set destination port

###### Read and write to TCP or UDP sockets with common bash tools

```bash
exec 5<>/dev/tcp/<host>/<port>; cat <&5 & cat >&5; exec 5>&-
```

___

##### Tool: [tcpdump](http://www.tcpdump.org/)
@@ -988,3 +1063,9 @@ fgrep "pattern" * -R
```bash
grep . filename > newfilename
```

###### Except multiple patterns

```bash
grep -vE '(error|critical|warning)' filename
```

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