Use fzf and fzy to add fuzzy search tools to the shell
Near Miss
Fuzzy finders retrieve useful results from data streams even if there are no exact matches.
Today, fuzzy searches are an integral part of everyday IT life. They correct typos, detect similarities, and offer a way to find what you need with reasonable overhead, even in unstructured data. The basic principle is based on the Levenshtein distance [1], word distances defined in the 1960s (see the "Levenshtein" box). Developers have extended and optimized this algorithm more or less from the start.
Having said this, many standard tools ignore fuzzy searches or limit themselves to highly simplified variants up to this day. For example, the grep tool from the coreutils package processes arbitrarily complex regular expressions (patterns), but it does not support fuzzy searching. Fuzzy searching is supported by agrep [2] and ugrep [3] at the command line, and there are several other, less well-known tools. Agrep impresses here with a best-match option.
Fzf [4] and fzy [5] (see the "Little Brother" box) enrich the shell construction kit, adding two new, powerful tools. They act as interactive filters, i.e., by default, they source their data from the standard input and return the results to the standard output. Interactive in this context means that they provide interfaces for entering the search patterns, which allow the search patterns to be adapted and refined at runtime.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
United Nations Open Source Portal Goes Live
A new open source portal seeks to coordinate and scale open source efforts across the United Nations system.
-
KDE Linux Drops AUR
KDE Linux developers have dropped the Arch User Repository from the build pipeline due to security concerns; other distributions should consider doing the same.
-
California May Exempt Linux from Its Age-Verification Law
After backlash from the Linux community, California may be backing off on its promise to force all operating systems to verify age, but one platform may still have to comply.
-
Another Logic Bug Found in Linux Kernel
Qualys has discovered a vulnerability in the Linux kernel that can be used to elevate standard user privileges.
-
Ubuntu Core 26 Offers Game-Changing Enterprise Features
Ubuntu Core 26 could be a game-changer for organizations looking for increased security and reliability.
-
AI Flooding the Linux Kernel Security Mailing List
AI is giving Linus Torvalds a headache, but not in the way you might think.
-
Top Priorities for Open Source Pros Seeking a New Job
Professional fulfillment tops the list, according to LPI report.
-
Container-Based Fedora Hummingbird Designed for Agent-First Builders
Fedora Hummingbird brings the same approach to the host OS as it does to containers to level up security.
-
Linux kernel Developers Considering a Kill Switch
With the rise of Linux vulnerabilities, the kernel developers are now considering adding a component that could help temporarily mitigate against them… in the form of a kill switch.
-
Fedora 44 Now Gaming Ready
The latest version of Fedora has been released with gaming support.
