Wednesday, 18 September 2013

Our Favourite Linux Cheat Sheets

Posted by Gary Newell  |  at  07:30 11 comments

Most Linux system administrators spend their days at the command line, configuring and monitoring their servers through an SSH session. The command line is extremely powerful, but it can be difficult to keep all the options switches and tools in your head. Man pages are only a command away, but they're often not written for quick consultation, so when we're stuck for some of the more arcane options, we reach for the collection of cheat sheets that we've curated over the years.

Even command line masters occasionally need a litte help, and we hope that terminal beginners will find these concise lists useful too. All of these tools are installed by default on a standard Linux box except for Vim and Emacs, which may or may not be available (see the package manager cheat sheets for how to get them).

Server Management

SSH

SSH is the standard tool for connecting securely to remote servers on the command line. (We hope you aren't using Telnet.)

Screen


Screen is a must-have application for those who SSH into multiple servers or who want multiple sessions on the same server. Somewhat akin to a window manager for terminals, screen lets users have multiple command line instances open within the same window.

Bash


Bash is the default shell on most Linux distributions (except Ubuntu, but Dash is almost completely compatible). It's the glue that holds together all the other command line tools, and whether you're on the command line or writing scripts, this Bash cheat sheet will help make you more productive.

Crontab


Cron is a tool for scheduling tasks. The notation is simple but if you don't use it a lot it's easy to forget how to set it to the right times and intervals.

Writing and Manipulating Text

Vim


Vim is a powerful editor, and you'll find it or its older brother Vi on most Linux systems. Vim has a modal interface that can be a bit daunting for newcomers, but once you get to grips with how it works, it's very natural.

Emacs


Emacs is a text editor that throws the "do one thing well" philosophy out of the window. The range of things that Emacs can do is seemingly endless, and a good cheat sheet is necessary for getting to grips with its finger work-out keyboard commands.

Org Mode

As a bonus for the Emacs users out there: check out Org mode. It's a flexible plain text outliner that integrates with Emacs and can be used for planning, to-dos, and writing.

Grep


Getting to grips with grep is essential if you deal with a lot of text files (as almost everyone managing a Linux server will).

SED and AWK


Together Sed and Awk can do just about anything you might want to do with a text file.

Package Management

RPM


Distributions that use RPM for package management, including Fedora, RHEL, and CentOS have a couple of tools to choose from: Yum for high-level package management, and the RPM tool itself for manipulating and querying the package database at a lower level.

Deb Package Management


Debian-based distros like Ubuntu and its derivatives use "apt-get" for general package management, and "dpkg" for direct manipulation of debs.

Cheaters

 

If you're a regular user of cheat sheets and manage your servers from a Mac, you might want to take a look at Brett Terpstra's cheat sheet app. Cheaters is a collection of scripts that will display an Automator-based pop-up containing a configurable selection of cheat sheets.

Check out the instructions on his site to find out how to integrate the cheat sheets we've covered in this article with Cheaters.

About Graeme Caldwell -- Graeme works as an inbound marketer for InterWorx, a revolutionary web hosting control panel for hosts who need scalability and reliability. Follow InterWorx on Twitter at @interworx, Like them on Facebook and check out their blog, http://www.interworx.com/community.

Check out the latest post

 Other articles

About the Author

Gary Newell started the Everyday Linux User blog in 2010 and has written reviews on dozens of different Linux based operating systems. He has also written a number of tutorials.

Get Updates

Subscribe to our e-mail newsletter to receive updates.

Share This Post

Related posts

11 comments:

  1. Thanks! Also for Bash, CTRL+C (Ubuntu) will stop a program. So say you accidentally ran a Ping without telling it to stop; CTRL+C will stop the program.

    ReplyDelete
  2. some more interesting commands about screen.

    screen:
    CTRL-a n -- next screen
    CTRL-a p -- previous screen

    @Mike Frett, CTRL-c is a signal named as SIGINT. you can see all signals by executing `kill -l`. SIGINT means interrupt from keyboard.

    ReplyDelete
  3. Wow this is just wrong in so many places that I don't even know where to start.... Seriously the SSH cheat sheet and not even a single SSH-command?

    ReplyDelete
  4. How about the little seen 'cd -'.
    Try it to see what it does. You'll like it.

    ReplyDelete
  5. Is everyone aware that clicking on the links actually brings up the full sheets. The actual article shows a few commands whilst linking to the actual sheets.




    ReplyDelete
    Replies
    1. Thanks for pointing that out. I didn't even realise there were links there. :)

      Delete
  6. yeah ssh cheat sheet is actually a command cheat sheet.

    ReplyDelete
  7. To repeat the last argument of your last command in bash enter escape+period. Very handy.

    ReplyDelete
  8. Nice... i'm going to add networking commands, Linux and more!!!! :D

    ReplyDelete
  9. "Bash is the default shell on most Linux distributions (except Ubuntu, but Dash is almost completely compatible)" is totally incorrect. Both Debian and Ubuntu default to having /bin/sh be a symlink to /bin/dash (so any script that uses /bin/sh actually uses /bin/dash rather than /bin/bash). The default shell for root, admin users, and regular users is /bin/bash!

    ReplyDelete
  10. For those sysadmins that are just starting out, or mostly admin Windows machines but ocassionally have to mangle linux here is a cheat sheet for basic commands: http://linuxtutorial.todolistme.net/cheatsheet.php It also contains links to a full tutorial so if you need more information on any section it is right there.

    ReplyDelete

Feel free to comment on any of the blog posts. Please try to be constructive.

Offensive messages will be removed as will blatant adverts for misleading products and sites.

Thanks for visiting my blog

    Popular Posts

    Total Pageviews

    Subscribe

    Enter your email address:

    Delivered by FeedBurner

    Popular This Month

    What are other people buying?

    Ubuntu Buy
    Linux Mint Buy
    Puppy Buy
    Netrunner Buy
    Zorin OS Buy
    Debian Buy
    Robolinux Buy
    CentOS Buy
    Linux Lite Buy
    Manjaro Buy
    Bodhi Buy
    Kali Buy
    Simplicity Buy
    PCLinuxOS Buy
    Tails Buy
    Rocks Cluster Buy
    openSUSE Buy
    Lubuntu Buy
    Fedora Buy

    Followers

    Feedburner Followers

Blogger templates. Proudly Powered by Blogger.
back to top Google