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How to disable “did you mean…” feature in Linux shell

Posted by Alex On July 10, 2022

How to disable offers to install a package with an incorrectly entered command In case the command you entered into the Linux console is not found, some distributions show additional information suggesting which packages the entered command might be in and how it can be installed. An example of such a message: Command 'magick' not found, did you mean: command...

How to convert a string to lowercase in Bash

Posted by Alex On July 9, 2022

This note will show you how to convert a string to lowercase (small letters) on the Linux command line. To convert a string to lower case regardless of its current case, use one of the following commands. tr echo "Hi all" | tr '[:upper:]' '[:lower:]' hi all Attention! If you want to change the case of any letters other than...

How to convert a string to uppercase in Bash

Posted by Alex On July 9, 2022

This note will show you how to convert a string to upper case (capital letters, uppercase) on the Linux command line. To convert a string to capital letters regardless of its current case, use one of the following commands. tr echo "Hi all" | tr '[:lower:]' '[:upper:]' HI ALL Attention! If you want to change the case of any letters...

How to find out which shell is in use in Linux

Posted by Alex On March 15, 2021

Linux shells There are several Linux shells, each with its own characteristics. Examples of popular shells are Bash (which is the default shell on many distributions) and ZSH (which is the default shell on Kali Linux, it has many fans). The shell information is contained in the $SHELL environment variable to see its value and to find out which shell...

How to change the login shell in Linux. chsh instruction

Posted by Alex On February 20, 2021

What is a login shell for? In practical terms, the selected login shell determines the default shell for the user. Although, of course, nothing prevents you from running any other shell installed on your system. How to find out what shells are installed on the system To change the default shell for a user, you need to know which shells...

How to run small Python code in Bash

Posted by Alex On February 18, 2021

Bash is not only and even not so much shell built-in functions as command line programs (utilities). By running these commands and transferring the received data to the pipeline (through the pipe), you can automate a variety of things, programming of which in other programming languages can take a lot of effort. This post will show you how to run...