Categories
Linux shell

Ubuntu & Bash tutorial & basic utilities

An introduction to the CLI (Command Line Interface) and Bash on Ubuntu Linux aka a bash tutorial

The default shell that is installed on Ubuntu Linux is bash. Alternatives exist, but they’re beyond the scope of this tutorial (check our post here for more info on how to isntall a better alternative to bash called Zshell or zsh). Bash is available on almost all Linux distributions, so this tutorial will work on most Linux distributions as well.

What is a shell? Simply put, the shell is a program that takes your commands from the keyboard and gives them to the operating system to perform. In the old days, it was the only user interface available on a Unix computer. Nowadays, we have graphical user interfaces (GUIs) in addition to command line interfaces (CLIs) such as the shell. Bash is the most popular shell application for Linux, and is the default on Ubuntu and hundreds of other Linux distributions, Mac OS X, and soon Windows 10.

The basics are:

  • You type one or more command(s), hit enter, and it runs the command(s).
  • Use the up/down arrows to go through your bash history. Ctrl+P also works
  • Use Ctrl+R to search the history of commands used previously.
  • Hitting tab will autocomplete commands.

Instead of typing
cd ~/myfolder1/
you can just type
cd ~/my<tab>
and it’ll either autocomplete fully or if there are still more folders (like my234 and myfolder1), it’ll show you your options. You can enter multiple commands by separating them with “;” or “&&”. ; allows commands to run one after another, && runs next command only if first succeeds. For clarity, we will focus only on single commands.

Bash and Linux in general is case sensitive. That means you can have new_folder, New_folder, NEW_FOLDER, and new_Folder all in the same directory. If the computer says a file or folder doesn’t exist, you should check to see if you forgot to capitalize something. This is another good use of tab complete!

The gist of it is that a command takes in arguments/parameters, so you enter your command, add a space, add your arguments. An argument CANNOT HAVE SPACES. A space means that the argument is done and you’re putting in another argument. To circumvent this, you have two options:

  1. Escape all spaces by using a backslash (\). This is the foolproof method that will work every time. Tab autocomplete will put these in for you.
    cd My\ Really\ Annoying\ Folder\ Name
  2. Put the argument in quotations (Works 99% of the time)
    cd “My Really Annoying Folder Name”

Here are the basic things that you’ll need to know how to do to get around.

Commonly used commands

commandWhat it doesExamples
manWith man, you can retrieve the information in the manual about a command and display it as text output on your screenman ls,
page-up/down or arrow keys to browse, q to quit, / to search
lsLists all the files and folders in the current directory.

Commonly launched with arguments -lsah for better output formatting.

ls Documents
text.txtls -lsah Documents

total 3

  0 drwxr-xr-x+  76 username group   2.5K Apr 19 18:52 .

  0 drwxr-xr-x    6 root admin   204B Dec 24 01:01 ..

  8 -r——–    1 username group     7B Nov 10 20:41 text.txt

cdChanges directory. To go up a directory, its cd .. (two periods). cd with no parameters sends you to your home folder.

Using ~ will change you to your home directory and – will return to your previous working directory.

cd ..
cd my_folder
rmDeletes files. Will delete folders recursively too with the -r option.

The -f option will forcefully remove files without warning
Common meme is telling people to rm -rf /, DON’T !

rm my_file.txt
rm -r my_folderrm -rf my_folder #forcefully removes a directory and its contents
rm –no-preserve-root -rf / #This will recursively forcefully remove all files from your filesystem, don’t do it.
rmdirRemoves an empty directory (Note: Doesn’t work for non-empty directories)rmdir test #Removes test directory
cpCopies files and directories. Use -R for copying directories.cp my_file.txt my_file_copy.txt

cp my_file.txt directory/my_file.txt

cp -R my_folder my_folder_copy

mvMoves files and folders. Also the way to rename things in the command line.mv my_file.txt this_subdirectory/my_file.txt

mv my_old_foldername my_new_foldername

pwdPrints what folder you’re in. Sort of useful, but your shell should have the folder you’re in.pwd
/home/username
!!Re run the last command.
This can be combined with other commands.
pwd

/home/username/desktop/mydir

cd ..

/home/username/desktop

!!

/home/username

sudoRuns a command as a different user, by default root. Does not work with cd.mkdir folder

mkdir: cannot create directory ‘folder’: Permission denied
sudo mkdir folder

(You will be asked for a password and the permission issues should go away)
sudo !!

[sudo] password for user:

(this does the same thing as above)

mkdirMakes a directorymkdir folder
chmodChanges file permissions (read, write, execute) + to add the permission to your user, – to remove.chmod +x myprogram
./myprogram
chmod -xchmod 777 filename.txt (Allow anyone to edit)
nanoThe easiest command line text editor. No arguments opens it just like opening notepad.exe without opening with a file.

Type ctrl+o to save, and ctrl+x to exit.

nano mytextfile.txt
passwdChange your password. (often has be run as root or be preceded by sudo )passwd

Changing password for <user>

(current) UNIX password:guest

Enter new UNIX password:hunter2

Retype new UNIX password:hunter2

catConcatenate two (or one) files or print everything in a file. Not recommended for viewing files, use less for that instead.cat my_file.txt

<content of my_file.txt appears on screen>

headPrint the first 10 lines of a text file.head my_file.txt
tailPrint the last n lines of a text file. Super useful for log files.

If it is invoked with the argument -f it lets you continuously view the file in real time.

tail -n 10 -f logfile.txt
lessAllows you to view a text file without editing it.

Can also view log files using +F (similar to tail -f)

less my_file.txt

less +F logfile.txt

grepAllows you to use regular expressions to search through the output of a program or a file. Search for text in all files in a folder with the “-r” switch.grep ‘Error:’ my_file.txt
grep -r `find me’ my_directory/
tarExtract files from tar archives.

Common options:

tar -xzf : extract files from gzip compressed tar archive

tar -xjf : extract files from bzip2 compressed tar archive

tar -xzf system_backup_2016_04_07.tar.gz

Best way to remember tar -flags https://i.imgur.com/Vf0An8J.png
Modern versions are smart enough to detect the format, so you can use -xf or -cf (eXtract File, Create File)

touchCreate an empty file with the specified name if the file does not exist.

Will also update the file date of an existing file without modifying the content

touch foo.bar
topTerminal-based GUI for viewing processestop
lnUsed for creating links (shortcuts) in the filesystem.
In general always use -snf (trust me)
ln -snf /opt/foo /usr/bin/bar
/usr/bin/bar now links to /opt/foo, and it is transparent to the operating system.
screenscreen let’s you run multiple login sessions in the same terminal. Say you want to run a process, you can launch it through screen, detach it, and then later come back to the same process.

When inside a screen session, type CTRL+A, then CTRL+D to detach it (put it into the background).
When you later want to reattach to the screen session, type screen -r. If you only have one screen session, you will be brought right back, otherwise you will have to specify the session id

screen bash

screen -r

screen -ls

There are screens on:

767.ttys000.localhost (Detached)

844.ttys002.localhost (Detached)

2 Sockets in /var/some/folder/random/T/.screen.

screen -r 767.ttys000.localhost

whoamiPrints the currently logged in user.whoami

john

whereisPrints the location of a command.whereis echo

/bin/echo

whichPrints the location of a command.which echo

/usr/bin/echo

echoOutputs text to the command line. Useful when writing shell scripts.echo “hello world”

Hello world

killAttempt to terminate processkill (process id)

*if ineffective, try kill -15 or kill -9 if 15 does not work (kill -9 will forcibly terminate almost any process)

killallWill attempt to terminate a process. killall firefox
fileShows you the file typefile my_file.txt

my_file.txt: UTF-8 Unicode text

dateShow the current date in text formdate

Tue Apr 19 15:31:54 CDT 2016

psDisplay information about processes (different than top…) ps -ef
can also search for processes: ps -ef | grep firefox
aproposFind commands that do a given task, Will return a list of commands that have the searched parameter in their man file.
Note: similar functionality to running  “man -k command”.
apropos remove
Colrm (1) – remove colums from a fileCut () – remove sections from each line of files


apropos concat
cat (1)           – concatenate files and print on the standard output

cat (1p)          – concatenate and print files

eval (1p)         – construct command by concatenating arguments

aliasVery useful for creating custom shorcuts for commonly used programs or parametersalias lcolor=’ls –color=auto’
Now lcolor is the same as ls –color=autoBut shorter
envList environment variables / set environment variablesenv

HOSTNAME=hostname.abcdefg.com

SHELL=/bin/bash

…etc

The filesystem in a nutshell

“Everything is a file”. In Linux, everything is treated as a file, even your devices.

Unlike Windows and DOS, Unix systems and Linux do not have drive names. Your thumb drive will be mounted as a “folder” on Linux – Instead of being F:\ on Windows, it would be /media/<username>/my_thumbdrive, assuming that is the device name on linux. On Ubuntu, drives are usually mounted in the /media folder under your username. All your shared folders in Virtualbox will show up there, but not under your username.

/home Where your user files are stored (equivalent of C:\Users)
/media Where drives are mounted (In Ubuntu)
/bin Where system executables are stored (almost the equivalent of system32)
/lib Where the system stores the library files (like the .dll’s in system32)
/usr/bin Where extra stuff you install is stored, like python (almost equivalent of C:\Program Files)

/etc Where configuration files for various programs and network services are stored

(Equivalent to where C:\Program Files\ApplicationName files are stored)

/dev Where all the systems devices can be found. Since everything is a file in Linux, every hardware device also has a corresponding file under /dev

/tmp Where temporary files are stored (This is wiped upon reboot, unless configured otherwise)

/var Variable files—files whose content is expected to continually change during normal operation of the system—such as logs, spool files, and temporary email files.
/proc Where you can query the hardware for information e.g. cat /proc/cpuinfo
Your home folder location can be referred to as ~. So instead of typing out /home/me, you can just type ~ , and it’ll resolve to be the same path.

And that’s about the extent you need to know, and probably more so to be honest. /home/<username>/bin is a good place to store any shell scripts or whatnot that you want to run from any folder. Which brings us to our next topic…
Running your own scripts

Earlier in the table of commands, I mentioned the chmod command. Files created by you will almost always be only read write permission level, which is great from a security standpoint. However, say you want to run a python script. You could do python myscript.py but that’s cumbersome. Instead, let’s do it the Linux Way™.

Header comment

The official name is the “shebang”, but in this guide I’ll call it the header comment – it’s a special type of comment you put at the top of a script in a Linux environment to tell the shell what  program to execute your program with. For a python script, you do this:

#!/usr/bin/env python

If we were writing a perl script, we would do

#!/usr/bin/env perl

If you were to write a bash script we would do:

#!/usr/bin/env bash

What it’s telling the shell to do is to look in the environment settings of the linux install, figure out where python is installed, and then run the rest of the source code through the python executable. This method has the benefit of not only being extremely portable (python might not be installed in the same place on all linux systems), it’s also super easy to remember what to write each time if you deal with multiple programming languages.

Linux doesn’t care about file extensions

With the header comment written, we now don’t have to worry about putting .py at the end of the filename anymore. You could name it “mypythonscript.jpg” if you wanted to – the data inside it is the same, and Linux just looks for that header comment, so it really doesn’t matter. It’s super nice to have no extension though, especially if you run the script a lot. You’ll just have to have your python scripts organized in a separate folder if you’re going to start foregoing extensions – hard to tell file types apart with no extension. The ‘file’ command can be used to identify which type of file a file is if you prefer to have no extensions.

Running your script

The first thing you have to do is mark it as executable. To do so, we’re going to use our trusty chmod command. We want to mark it as executable, so we’re going to use the u+x argument to add executable permissions to the file – This tells Linux to change the file mode to executible by the user only.

chmod u+x mypythonscript.py

Now, our script is executable. You can verify this by running ls, and it will now be green. Green means an executable file. To run it, we’re going to do

./mypythonscript.py

This is a security measure put in place by Linux so that you can be sure you are executing the file within the current directory – imagine if someone placed a malicious executable named ls in a folder, and you ran ls, and instead of executing the one in /bin, it ran the malicious one in your current folder? It wouldn’t be good.

In Linux, a single period is your current directory, and two periods is the parent directory. So

./mypythonscript.py

is really

/home/my_username/my/full/path/name/mypythonscript.py

If you have a script you do want to run from anywhere, put it in your bin folder in your home folder (~/bin). If you want to make that script or executable available for all users on the system, place it in /usr/local/bin.

Cancelling a process in terminal

To stop a process, hit CTRL+D. This will exit out of the current program (if you’re in an interactive python process, or if there’s a program you want to force quit in general, just hit CTRL+D) If that doesn’t work, use CTRL+C, but that isn’t a nice way of stopping a program, and its not recommended. Use as a last resort.

Previously, it was mentioned you can run multiple commands by either separating them with “;” or “&&”. The difference is that if you separate with a semicolon, you will have to force stop each command; For example if I run the following:

./my_script.py; cp script_output backup/script_output; ./my_script2.py

If you force quit the instance of my_script.py, it will continue on to copy the script_output file, which you’d have to force quit as well, as well as the my_script2.py. A nice feature is that if my_script.py has an error and fails, it will not continue on to run the copy command or the second python script.

Alternatively, if you use && to run multiple commands:

./my_script.py && cp script_output backup/script_output && ./my_script2.py

Now, when you cancel any one of these processes, the remaining processes will also be cancelled. However, if my_script.py encounters an error, it will continue to run the second and third commands which may not be good – If cp ends up running the computer out of disk space and the second script generates more data, this could end badly. Choose the method of running multiple commands wisely. Personally I like using the && method better simply because I can force quit all of it.

To paste into the terminal, you must use CTRL+SHIFT+V. CTRL+V will not work to paste. Similarly, copying in the terminal must be CTRL+SHIFT+C.

Be careful when pasting commands into the terminal! If there’s a new line at the end of the command, it’ll automatically run the command!! (like if you hit enter after typing a command).

Multiline commands can be separated with \<enter>

Example:

cd \

/var/log

Is the same As “cd /var/log” only in two lines, useful for long commands.

Package manager

No linux tutorial would be complete without an introduction to the package manager. This is a unique feature of linux – it allows you to install, update, and remove any piece of software on your computer. The syntax is very simple too. All package management must be run as root, or with “sudo” before it.

Apt – Advanced Package Tool

CommandWhat it doesExample
sudo apt updateUpdates the list of available software to install (if a security update for python got released yesterday, running update will let your computer know that)
sudo apt upgradeUpdates the installed software on your computer (applying that python security patch that it found out about through update)
sudo apt installAllows you to install a packagesudo apt install python3
sudo apt removeAllows you to remove a packagesudo apt remove vim
aptitudeLaunches the synaptics package manager – good for searching for packages. Can be run without root, but you can’t install anything without running as root.
Q to quit.
sudo aptitude

Older tutorials will use apt-get, which has since been superseded by Apt. Apt-get will still work fine, but apt is the new standard, and it has some nice improvements.

To easily search for packages in the repository, you can use Synaptic Package Manager, or you can

just google “how to install x on ubuntu” and you’ll find the package name. You can try guessing a package name, but you might not always be successful.

Pip is also directly accessible through the command line for python. Just run

sudo -H pip install

Python virtual environment

On your own machine, you have full root access, but on a work machine you most definitely will not. Having a python virtual environment allows you to install as many python packages with pip as you want, without needing to run sudo pip install <package>.

A good rule of thumb is to create a virtual environment for every project, separately, to separate dependencies from one environment to another.

An easy way to create virtual environments is to globally install a pip package called virtualenvwrapper.

To set up a virtual environment of python, create a directory in your home folder that you want the virtual environment to live in. Then run the following commands to create the virtual environment.

sudo pip install virtualenv

virtualenv pythonv

To make the python virtual environment your default python environment in your session, simply run

source /path/to/pythonv/bin/activate

Now when you run which python it will output /path/to/pythonv/bin/python.

Note that this is a temporary change – Closing the terminal or logging out will revert this change. Adding this to your ~/.bashrc file will execute it upon login, or you can set it as an alias in your bashrc.

Shell piping and redirecting IO

There are three types of pipe characters: <, >, and |. < is difficult to explain, so I left it out.

Pipe/Redirect characterWhat it doesExamples
>Redirects output to a fileman -k search > man_output.txt
>>Redirects output to file and appendsman -k find >> man_output.txt
|Takes the output of process A and puts it as input into process Bcat man_output.txt | grep “fast”
&>Redirect both standard output and error to same location.cat file.txt &> output.txt

In Linux, you have two main pipes – Standard Output (stdout, all your normal output of things that are printed to the screen), and Standard Error (stderr, when something doesn’t work right – Error on line 2, ‘;’ expected)

stdout is numbered pipe 1, and stderr is numbered pipe 2. By default, > is actually 1> – It’s redirecting standard output. If we wanted to redirect standard error, we would do 2>. 2>> will append, just like >> does. If we want to redirect both error and output, we can do &>.
This post and ubuntu / Linux / bash intro tutorial is based on work by mcvittal of reddit who licensed it under the WTFPL – Do What The Fcuck You Want To Public License. This post is here for archival and informational purposes.

Categories
Linux shell

Why you should switch to ZShell ( zsh )

Why use ZShell

It has some amazing features, but right out of the gate in no particular order:

  • Context based tab completion that puts most others out there to shame.
  • Shared history among tabs.
  • Dynamic Load modules
  • Spelling correction that out performs most others out there.
  • Globbing that works on magic. I am positive of this.
  • Themes that work wonders, there are tons of them out there and they fit everyone’s needs or just write your own!
  • Global aliases

I’m going to be an elitist and say bash is for the cavemen 😐 any machine you have a personal user account on: install zsh. life just became pretty… and pretty awesome. why zsh? well its powerful and configurable…. its awesome! and you can change a LOT about it and extend it via plugins.

sudo apt-get install zsh curl git-core ruby
wget --no-check-certificate https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | sh

this should switch you to zsh and install an awesome script for zsh. if not then do the next two steps. They can be repeated at will. Note where your zsh is, most likely /bin/zsh.

which zsh
chsh

After that comes customization time! yay… etc.
(pick a theme, I prefer dallas so)
edit ~/.zshrc

ZSH_THEME="dallas"

Heres my plugins, you can remove the ones you dont need

plugins=(git ant cpanm debian github mercurial node npm svn)

Install rvm :

user$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

add the following to your ~/.zshrc

[[ -s $HOME/.rvm/scripts/rvm ]] && source $HOME/.rvm/scripts/rvm

more to come later.

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Categories
Linux shell

Alsa CLI Volume control

I couldn’t find the silly volume control in the system settings one day so i figured there had to be something I could use to control volume settings like mic boost without needing a gui or remembering names and numbers for the CLI. well there is and it’s so easy a caveman could do it (hah remember those ads….)…. so without further ado here’s a fun and great way to control your volume via Alsa CLI Volume control.

type the following then use your arrows to move right/left and make the volume higher or lower by using up/down keys:

alsamixer -c 0

the 0 at the end is the number of your device. if a system only has one device you will use 0. if you have two devices you can use 0 or 1. it tells you the name of the device currently being edited so you don’t give yourself a heart attack by changing the wrong volume. picture of the control is attached.

 
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Categories
General Linux nginx shell

Letsencrypt ssl cert for mumble

I needed to set up a mumble server for a friends minecraft community. The Mumble software uses a client–server architecture which allows users to talk to each other via the same server. It has a very simple administrative interface and features high sound quality and low latency where possible. All communication is encrypted to make sure user privacy using either a self signed cert or a cert purchased via a vendor. The great thing about Mumble is that it’s free and open-source software, is cross-platform, and is released under the terms of the new BSD license. Since letsencrypt is awesome and provides completely free certs to the end users, I figured it would be perfect to use in this attempt.  So I started on the road to acquire a letsencrypt ssl cert for mumble.

First we need to acquire the letsencrypt client. for this you need git.

git clone https://github.com/letsencrypt/letsencrypt
cd letsencrypt
./letsencrypt-auto certonly --standalone --standalone-supported-challenges tls-sni-01

A text / curses bases dialogue will start. it will ask you to input your domain(s) you want a cert for. If you want multiple domains or multiple subdomains at the same time just separate them via a space or a comma, follow the prompts and it will install your cert in /etc/letsencrypt/live/<domain>/cert.pem. So far so good! now you need to install murmur/mumble-server on your machine. I would like to tell you how to do it but due to the nature of software it might change, the best way to do it is via checking the official mumble wiki for info on how to do it for your OS. To do it in Ubuntu I used the following commands

sudo add-apt-repository ppa:mumble/release
sudo apt-get update
sudo apt-get install mumble-server
sudo dpkg-reconfigure mumble-server

Now lets setup the mumble server to use the certs we acquired earlier.  Edit /etc/mumble-server.ini , I prefer using nano but it’s because I am a pleb, you may be a super 1337 operator and use vi or vim or directly edit the 1’s and 0’s on the drive platters. Find the following keys and edit them or add if they don’t exist or are commented out.

sslCert=/etc/letsencrypt/live/<domain>/cert.pem
sslKey=/etc/letsencrypt/live/<domain>/privkey.pem
sslCA=/etc/letsencrypt/live/<domain>/fullchain.pem

the sslCA may not exist, thats fine, this allows all mumble clients to accept the cert from LE. One last issue you need to resolve before you can start mumble-server is the ssl cert is root only access at the moment. the way I resolved this is to change the group on the files and folders. you may have a better solution, please do share it in the comments.

chgrp -R ssl-cert /etc/letsencrypt
chmod -R g=rX /etc/letsencrypt

now start mumble-server with a service mumble-server restart or whatever your OS accepts, and Voila! you are now up and running using a valid letsencrypt ssl cert for mumble 🙂 if you have any questions, or comments, or better way of doing this please let me know.

 

Categories
General

Remove spaces from file names via bash

if you need a simple way to remove spaces from file names and replace with an underscore or a hyphen or whatever else here is a bash one liner. You can also do this via python or perl or most likely via php (why? o.0) but since bash / zsh is here and readily available for me I choose to use bash / zsh.

Remove spaces and replace with underscore:

find /tmp/ -depth -name "* *" -execdir rename 's/ /_/g' "{}" \;

remove spaces and replace with hyphen :

find /tmp/ -depth -name "* *" -execdir rename 's/ /-/g' "{}" \;

Remove spaces completely:

find /tmp/ -depth -name "* *" -execdir rename 's/ //g' "{}" \;

Be careful with he above as it will remove all spaces from file and directory names.

hope this helps. if you have a better way of doing it comment and let me know 🙂

Categories
Linux

Linux HP Smart Array Raid Controller

A client has a machine in a DC that has a raid controller and 4 hdd’s set to raid 10, that’s all I was told. I wanted to keep an eye on the hdds, so I needed to install a utility that can monitor and interact with the raid controller.  In my case I have the hp smart array raid controller as you will see in just a bit, you may have a different controller from this one by a different manufacturer, or it may require a different version of the software tool from HP, please check on the HP site linked below before continuing on. There is a chance of serious data loss if you don’t follow common sense practices and MAKE BACKUPS. I needed to do a few things, find out which controller is it, find latest of control utility for it, install said utility and then check on the drives. that isnt always easy, sadly.

First we check who makes this system.
dmidecode | grep -A3 ‘^System Information’
Sample result:

System Information
Manufacturer: HP
Product Name: ProLiant DL160 G6
Version:

Second we check lspci to see what controller we have installed.
lspci -k|grep -i -A2 raid
Sample Result :

04:00.0 RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers (rev 01)
Subsystem: Hewlett-Packard Company Smart Array P410
Kernel driver in use: hpsa

Now we know we have a HP machine, DL160 G6 to be exact in this case, and the exact rev of the card itself. We need to install the HP provided software for it.  The official HP software page for the information below is here.  However as its laid out, best of luck getting up and running quickly if you follow that page.

Get and install HP Keys. (Keys are in the following order: software release pre 2014, during 2014, and post 2014)

curl http://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub | apt-key add -
curl http://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub | apt-key add -
curl http://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub | apt-key add -

Add the HP repo (be sure to change the jessie to whatever your release is):

echo -e "deb http://downloads.linux.hpe.com/SDR/repo/mcp/ jessie/current non-free" > /etc/apt/sources.list.d/hpe.list

Then update sources and install package :

apt-get update && apt-get install hpssacli

Now you have the tools needed for the job! so run the utility

hpssacli

sample result:

HP Smart Storage Administrator CLI 2.10.14.0
Detecting Controllers…Done.
Type “help” for a list of supported commands.
Type “exit” to close the console.

=>

There are a few commands you can use on this CLI:

Show all config :

=> ctrl all show config

Smart Array P410 in Slot 4 (sn: PACCRID12290K57)
Internal Drive Cage at Port 1I, Box 1, OK
array A (SATA, Unused Space: 0 MB)
logicaldrive 1 (1.8 TB, RAID 1+0, OK)

physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SATA, 1 TB, OK)
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SATA, 1 TB, OK)
physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SATA, 1 TB, OK)
physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SATA, 1 TB, OK)

SEP (Vendor ID PMCSIERA, Model SRC 8x6G) 250 (WWID: 5001438021BEED2F)

Show Status:

=> ctrl all show status

Smart Array P410 in Slot 4
Controller Status: OK
Cache Status: OK

View drive status (change slot # to thew one from show status command above):

=> ctrl slot=4 pd all show status

physicaldrive 1I:1:1 (port 1I:box 1:bay 1, 1 TB): OK
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, 1 TB): OK
physicaldrive 1I:1:3 (port 1I:box 1:bay 3, 1 TB): OK
physicaldrive 1I:1:4 (port 1I:box 1:bay 4, 1 TB): OK

If you get an error like the following you are using the wrong slot number, just run ctrl all show status and use the proper slot number:

ctrl slot=0 pd all show status

Error: The controller identified by “slot=0” was not detected.

View each individual drive and its info :

ctrl slot=4 pd 1I:1:4 show detail

Smart Array P410 in Slot 4

array A

physicaldrive 1I:1:4
Port: 1I
Box: 1
Bay: 4
Status: OK
Drive Type: Data Drive
Interface Type: SATA
Size: 1 TB
Native Block Size: 512
Rotational Speed: 7200
Firmware Revision: HPG2
Serial Number: Z1N3S3ZS
Model: ATA MB1000CBZQE
SATA NCQ Capable: True
SATA NCQ Enabled: True
Current Temperature (C): 28
Maximum Temperature (C): 51
PHY Count: 1
PHY Transfer Rate: 1.5Gbps

Show all logical drives:

ctrl slot=4 ld all show

Smart Array P410 in Slot 4

array A

logicaldrive 1 (1.8 TB, RAID 1+0, OK)

Hope this helps some of you out as it took me a little bit to get all the information together for my setup, so I’m storing it here for future usage 🙂