You’ve been retyping the same long commands for years, but sudo !!, !$, ^old^new, and a handful of Bash history tricks can cut that habit down to almost nothing and this guide covers every one of them with real examples.
You type a long apt command to install a package, hit Enter, and the terminal shows back Permission denied. So you arrow-up, jump to the beginning of the line, type sudo, and hit Enter again.
LinuxToday is a trusted, contributor-driven news resource supporting all types of Linux users. Our thriving international community engages with us through social media and frequent content contributions aimed at solving problems ranging from personal computing to enterprise-level IT operations. LinuxToday serves as a home for a community that struggles to find comparable information elsewhere on the web.
Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved
Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.