Linux Command Line - from Simple Commands to Advanced Level: Become a Linux Expert FAST and EASY! (Full Edition, Revised and Enlarged) by Matthew Gimson

Author:Matthew Gimson [Gimson, Matthew]
Language: eng
Format: azw3
Published: 2017-03-26T04:00:00+00:00

The above shows only a sample of the system variables. If you want to print any of the above variables, use the echo and the $ sign command as shown below:

echo $HOME

echo $PWD

The next section explains how to work with user defined variables.

Use the following syntax to define a user defined variable:

variable name=value

The ‘name’ refers to the name to be used to refer to the variable. The value is what it is. This is usually a number or a string. Example:

num=10

name=Mary

Tips when naming variable

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