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Changing the Default Terminal to Terminator on Ubuntu

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Terminator is a powerful tool for developers, allowing you to manage multiple terminal sessions in a single window. Features like splitting panes, tabs, and simultaneous input can significantly boost your productivity. Step 1: Install Terminator First, install Terminator using the apt package manager. sudo apt update sudo apt install terminator -y The -y option automatically answers 'yes' to any prompts during the installation process, streamlining the setup. Step 2: Set as the System Default Ubuntu uses a utility called update-alternatives to manage default applications. We'll use this tool to change the default terminal emulator ( x-terminal-emulator ) to Terminator. Run the Configuration Command Enter the following command in your terminal. A list of available terminals will appear. sudo update-alternatives --config x-terminal-emulator Select Terminator From the resulting list, enter the selection number corresponding to terminator and press Enter. ...
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Regular expression to change the first letter of each line to uppercase

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Regular Expression When you execute this command, it will change the first letter of every line in the file to uppercase, leaving the rest of the line unchanged. :%s/^\(.\)/\U\1/g Break down and explain This regular expression command breaks down as follows: Regular expression Description :%s Substitute command to find and replace text in the entire file. ^ Anchors the search to the beginning of each line. \(.\) Captures the first character of each line in a group (denoted by \(.\)). \U\1 Replaces the captured first character with its uppercase version (\U) and the backreference to the captured group (\1). g This flag stands for “global”. When it appears at the end of the command, it means that all occurrences of the pattern in each line should be replaced.
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Regular expression to remove HTML tags

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Regular Expression When you use this regular expression ' [^>]* ' to find matches in a text, it will identify all HTML tags. To remove the HTML tags, you can replace the matches with an empty string, effectively eliminating the tags from the text. :%s/<[^>]*>//g Break down and explain This regular expression command breaks down as follows: Regular expression Description :%s Substitute command to find and replace text in the entire file. < This part matches the character < in the text. It looks for the beginning of an HTML tag. [^>]* The ^ symbol means "not" in this context. So, [^>] means "any character except >". The * symbol indicates "zero or more occurrences" of the previous pattern. Hence, [^>]* matches any number of characters that are not >. > This part matches the character > in the text. It looks for the end of an HTML tag. // This is the replacement empty string. g This 'g' signifies “global”...
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