learnbyexample

Connect Four game with a twist

Python regular expression cheatsheet and examples

Better bindings for command line history search

Customizing pandoc to generate beautiful pdf and epub from markdown

Everything you need to know about sed substitution

CLI text processing with GNU awk book announcement

awk idioms explained

OS installation woes

Understanding Python re(gex)? book announcement

Coloring matched portions with GNU grep, sed and awk

100 Page Python Intro book announcement

Festive offers for books on Python, Linux, Regular Expressions, Vim and more!

Interactive Python Exercises and Quiz

Vim Reference Guide book announcement

Basic examples for the Linux date command

Linux Command Line Computing book announcement

Interactive GNU awk tutorial

CLI computation with GNU datamash

CLI text processing with GNU Coreutils book announcement

Ruby One-Liners Guide book announcement

Understanding Ruby Regexp book announcement

2023: year in perspective

Festive offers for books on Python, Linux, Regular Expressions and more

Understanding JavaScript RegExp book announcement

CLI text editing with ed

Perl One-Liners Guide book announcement

Vim tip 33: editing with text objects

Vim tip 32: text and indent settings

CLI tip 33: manipulating string case with GNU sed

Python tip 33: sorting iterables based on multiple conditions

Vim tip 31: mark frequently used locations

CLI tip 32: text processing between two files with GNU awk

Interactive exercises for GNU grep, sed and awk (TUI apps)

Python tip 32: positive lookarounds

Vim tip 30: some general Vim settings

CLI tip 31: concatenate files column wise

Python tip 31: next() function

Vim tip 29: greedy quantifiers

CLI tip 30: extract only the matching portions

Python tip 30: zip() function

CLI text processing with GNU sed book announcement

Vim tip 28: miscellaneous motion and reposition commands

CLI tip 29: define fields using FPAT in GNU awk

Python tip 29: negative lookarounds

Vim tip 27: regexp anchors

CLI tip 28: substitute specific occurrence with GNU sed

Python tip 28: string concatenation and repetition

Vim tip 26: executing shell commands

CLI text processing with GNU grep and ripgrep book announcement

CLI tip 27: reverse text line wise with tac

Python tip 27: enumerate() function

Vim tip 25: substitute flags

CLI tip 26: removing duplicate lines with GNU awk

Python tip 22: possessive quantifiers

Python tip 26: atomic grouping

Vim tip 24: movement commands within the current file

CLI tip 25: get file properties using the stat command

Python tip 25: split and partition string methods

100+ Interactive Python Regex Exercises

Vim tip 23: editing lines filtered by a pattern

Python Regular Expressions Playground

CLI tip 24: inserting file contents one line at a time

Python tip 24: modifying list using insert and slice

CLI tip 23: recursive filename matching with globstar

Vim tip 22: word and WORD motions

Python tip 23: map, filter and reduce

Vim tip 21: working with tabs

CLI tip 22: grep options to suppress stdout and stderr

Python Regex Surprises

Vim tip 20: character based motions within the current line

CLI tip 21: inplace file editing with GNU awk

2022: year in perspective

Python tip 21: sorting iterables based on a key

Vim tip 19: working with buffers

CLI tip 20: expand and unexpand

Interactive Linux CLI Text Processing Exercises

Python tip 20: saving and loading json

Vim tip 18: moving within long lines

CLI tip 19: extended globs

Festive deals for books on Python, Linux, JavaScript, Regular Expressions and more

Python tip 19: manipulating string case

Building TUIs with textual: first impressions

Computing from the Command Line: sales report

Vim tip 17: setting options

CLI tip 18: inserting file contents using GNU sed

Python tip 18: arbitrary number of arguments

Vim tip 16: terminal mode

CLI tip 17: common and unique lines

Python tip 17: counting frequency of items

Vim tip 15: moving within current line

CLI tip 16: transpose tables

Python tip 16: delete list elements using index or slice

Vim tip 14: horizontal and vertical splits

CLI tip 15: text generation with printf and brace expansion

Python tip 15: string transliteration

Vim tip 13: repeat last change

Programming ebooks by Sundeep Agarwal

CLI tip 14: specify permissions during directory creation

Python tip 14: sequence unpacking

Vim tip 12: save and restore sessions

CLI tip 13: join lines of two files based on the first field

Python tip 13: formatting numbers with underscore separation

Vim tip 11: replace characters in Normal mode

CLI tip 12: squeeze empty lines

Python tip 12: negate a regex grouping

Vim tip 10: Undo and Redo

CLI tip 11: longest line length

Bash compound commands and redirection

Python tip 11: capture external command output

Vim tip 9: named registers

Debug woes 3: matching uppercase letters

CLI tip 10: version sort

Python tip 10: removeprefix and removesuffix string methods

Python 3.11: possessive quantifiers and atomic grouping added to re module

Vim tip 8: join lines

CLI tip 9: awk paragraph mode

Python tip 9: applying set-like operations for dictionaries

Vim tip 7: changing case in Normal mode

CLI tip 8: extract from start of file until matching line

Vim Reference Guide: two week sales report

Python tip 8: dict.fromkeys() method

Vim tip 6: search word nearest to the cursor

CLI tip 7: limiting number of filtered lines

Python tip 7: creating a deepcopy of collections

Vim tip 5: jumping back and forth in Normal mode

CLI tip 6: filtering lines based on multiple conditions

Python tip 6: inplace file editing

Vim tip 4: reposition current line in Normal mode

PyDev of the Week

CLI tip 5: aligning columns

Python tip 5: random choice and sample

Brag post: Hacker News Front Page entries

Removing duplicates irrespective of field order

Vim tip 3: autocomplete words and lines in Insert mode

Regexp gotcha 1: grouping common portions

CLI tip 4: serialize file contents to a single line

Automating Excel with Python - book review

Vim prank: alias vim='vim -y'

Python tip 4: comparison chaining

2021 was a wild ride

Vim tip 2: indent/unindent lines

CLI tip 3: place backups in another directory with GNU sed

Counting nested braces

Python tip 3: expression and result with f-string

Vim tip 1: increment/decrement numbers

Improve your Python regex skills with 75 interactive exercises

CLI tip 2: counting number of matches

Programming deals

Numeric Palindrome

Python tip 2: membership operator

CLI tip 1: remove metadata from images

Python tip 1: tuple argument for startswith/endswith methods

Announcing learnbyexample weekly newsletter

The Indie Python Extravaganza

Practice Python Projects book announcement

Escaping madness to get literal field separators in awk

Debug woes 2: unexpected array in replacement string

Dreaming solutions

GNU BRE/ERE cheatsheet and differences between grep, sed and awk

Debug woes 1: multiple substitutions on the same line

Perl one-liner articles

Paying my bills with 'free' ebooks

Multiline fixed string search and replace with CLI tools

Emulating regexp lookarounds in GNU sed

Search and replace tricks with ripgrep

I know Python basics, what next?

JavaScript regular expressions cheatsheet and examples

Creating GUI Applications with wxPython - book review

Python for maths

A short and satisfying bug hunt