TR Command-linux command five-minute series six

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The TR instruction reads the data from the standard input device and, after the string translation, outputs to the standard output device.

Cat filename |tr u n : Used to replace the U in the filename file with N on the screen , but the actual file is not replaced

Cat FileName | TR- d ABC deletes all occurrences of A or B or C characters from the filename content on the screen and displays

Cat filename|tr [: Lower:] [: Upper:] capitalizes all lowercase in the contents of the file

A substitution symbol similar to [: Lower:] is also:

[: Alnum:] denotes all letters and numbers

[: Alpha:] denotes all the letters

[: blank:] denotes all spaces

[:d igit:] denotes all numbers

[: Graph:] denotes all printable characters but does not include spaces

[:p rint:] denotes all printable characters, including spaces

For an overview view, refer to the use of the TR command in detail

TR Command-linux command five-minute series six