Language Selection

English French German Italian Portuguese Spanish

Linux Cheat sheets I have made

Filed under
Linux 101

Hey! I'd like to let you know that I have published some of the cheat sheets that I have made.

Here is a link to all the cheat sheets on my blog:
cheat sheets at catonmat (my blog)

They include:
* awk (awk, nawk and gawk) programming language cheat sheet,
* sed, unix stream editor, cheat sheet,
* ed, interactive unix text editor, cheat sheet,
* perl's special variable cheat sheet,
* perl's pack/unpack and printf/sprintf function cheat sheet,
* screen vt100 terminal emulator cheat sheet,
* bash vi editing mode (readline) cheat sheet, and
* bash emacs editing mode cheat sheet.

Tell me what you think and I hope you find them useful! Smile

ps. I have 5-10 more to publish, if you are interested, check back and possibly subscribe to my posts via rss feed Smile

Sincerely,
Peteris Krumins

Set Operations in Unix Shell

Hi all, again! Smile

I just published another article that comes with a cheat sheet.
In this article I implemented various set operations by using awk, comm, sort, uniq, diff, join, head, tail, and other Unix utilities.

The article explains 14 various set operations:

  • Set Membership.
  • Set Equality.
  • Set Cardinality.
  • Subset Test.
  • Set Union.
  • Set Intersection.
  • Set Complement.
  • Set Symmetric Difference.
  • Power Set.
  • Set Cartesian Product.
  • Disjoint Set Test.
  • Empty Set Test.
  • Minimum.
  • Maximum.
The article can be read here: Set Operations in Unix Shell

And the cheat sheets can be downloaded here:

What do you think about it?

Sincerely,
P.Krumins
I love mathematics, physics and computer science
http://www.catonmat.net -- good coders code, great reuse

I just published another

I just published another detailed post on working efficiently on bash command line, together with a cheat sheet.

The article starts by reviewing the keyboard shortcuts for history retrieval in emacs and vi editing modes, then it covers the commands for listing and erasing the history, then it goes into discussing history expansion mechanism - event designators, word designators and their modifiers. Finally the guide lists variables and options to modify the default history behavior.

At the end of the guide I include a link to downloadable cheat sheets in pdf, plain text ascii and latex formats.

Read my article "The Definitive Guide to Bash History"

Download links to cheat sheets:
PDF: bash-history-cheat-sheet.pdf
TXT: bash-history-cheat-sheet.txt
TEX: bash-history-cheat-sheet.tex

Sincerely,
P.Krumins
I love mathematics, physics and computer science
http://www.catonmat.net -- good coders code, great reuse

More in Tux Machines

Today in Techrights

Leftovers: OSS

  • Are Low-Code Platforms a Good Fit for Feds?
    Open-source code platforms — in part, because they’re often free — have long been a popular choice for digital service creation and maintenance. In recent years, however, some agencies have turned to low-code solutions for intuitive visual features such as drag-and-drop design functionality. As Forrester Research notes, low-code platforms are "application platforms that accelerate app delivery by dramatically reducing the amount of hand-coding required."
  • Crunchy Data Brings Enterprise Open Source POSTGRESQL To U.S. Government With New DISA Security Technical Implementation Guide
    Crunchy Data — a leading provider of trusted open source PostgreSQL and enterprise PostgreSQL technology, support and training — is pleased to announce the publication of a PostgreSQL Security Technical Implementation Guide (STIG) by the U.S. Department of Defense (DoD), making PostgreSQL the first open source database with a STIG. Crunchy Data collaborated with the Defense Information Systems Agency (DISA) to evaluate open source PostgreSQL against the DoD's security requirements and developed the guide to define how open source PostgreSQL can be deployed and configured to meet security requirements for government systems.
  • Democratizing IoT design with open source development boards and communities
    The Internet of Things (IoT) is at the heart of what the World Economic Forum has identified as the Fourth Industrial Revolution, an economic, technical, and cultural transformation that combines the physical, digital, and biological worlds. It is driven by such technologies as ubiquitous connectivity, big data, analytics and the cloud.

Software and today's howtos

Security and Bugs

  • Security updates for Thursday
  • Devops embraces security measures to build safer software
    Devops isn’t simply transforming how developers and operations work together to deliver better software faster, it is also changing how developers view application security. A recent survey from software automation and security company Sonatype found that devops teams are increasingly adopting security automation to create better and safer software.
  • This Xfce Bug Is Wrecking Users’ Monitors
    The Xfce desktop environment for Linux may be fast and flexible — but it’s currently affected by a very serious flaw. Users of this lightweight alternative to GNOME and KDE have reported that the choice of default wallpaper in Xfce is causing damaging to laptop displays and LCD monitors. And there’s damning photographic evidence to back the claims up.