regex   35889

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text processing - How can I replace a string in a file(s)? - Unix & Linux Stack Exchange
# Recursive, regular files in this and all subdirectories
find . -type f -name "*baz*" -exec sed -i 's/foo/bar/g' {} +
linux  regex  sed 
7 hours ago by pipthepixie
RegExr: Learn, Build, & Test RegEx
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
javascript  regex  programming  tools 
11 hours ago by davidgasperoni
RegExr: Learn, Build, & Test RegEx
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
regex  tool  tools  regexp  regularexpression 
yesterday by alabra
Regex Crossword
A crossword puzzle game using regular expressions. Earn achievements completing puzzle challenges. Easy tutorials for people new to regular expressions.
regex  puzzle  games  Programming  regexp  game  crossword  learning  puzzles  fun  2019 
2 days ago by dchesters
RegExr: Learn, Build, & Test RegEx
RegExr was created by, and is proudly hosted by Media Temple.

Edit the Expression & Text to see matches. Roll over matches or the expression for details. PCRE & Javascript flavors of RegEx are supported.

The side bar includes a Cheatsheet, full Reference, and Help. You can also Save & Share with the Community, and view patterns you create or favorite in My Patterns.

Explore results with the Tools below. Replace & List output custom results. Details lists capture groups. Explain describes your expression in plain English.
5 days ago by prcleary
Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript
Online regex tester, debugger with highlighting for PHP, PCRE, Python, Golang and JavaScript.
tool  regex 
5 days ago by oXnMe
Execute Program
Learn By Doing: It's difficult to learn complex programming tools from a book or blog post. Each of our 1,589 code examples is small and interactive. No dry documentation to read.

built by solid team; $19/mo
javascript  programming  regex  webdev  tutorial  tools  education  code 
5 days ago by inrgbwetrust
Regular expressions in R
The R language was developed for analyzing data sets, not for munging text files. However, R does have some facilities for working with text using regular expressions. This comes in handy, for example, when selecting rows of a data set according to regular expression pattern matches in some columns.

R supports two regular expression flavors: POSIX 1003.2 and Perl. Regular expression functions in R contain two arguments: extended, which defaults to TRUE, and perl, which defaults to FALSE. By default R uses POSIX extended regular expressions, though if extended is set to FALSE, it will use basic POSIX regular expressions. If perl is set to TRUE, R will use the Perl 5 flavor of regular expressions as implemented in the PCRE library.
regex  R 
6 days ago by prcleary

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