tr

The tr command is a versatile command-line tool found in Unix-like operating systems. It is short for "translate" and is used for translating or deleting characters from standard input. The basic syntax of the tr command is: tr [options] [set1] [set2]. The command replaces all occurrences of characters in set1 with corresponding characters in set2. It can be used to convert lowercase characters to uppercase and vice versa using sets such as 'a-z' and 'A-Z'. Additionally, the tr command can be used to delete specific characters using the -d option. One of its primary uses is for text manipulation, where it can perform tasks like removing duplicate characters or changing line endings. The tr command is commonly used in combination with other commands through pipes to achieve more complex tasks. It is a fast and efficient command-line tool that can process large amounts of data quickly. The tr command is available on most Unix-like operating systems, including Linux and macOS.