Unix / Linux – File System Basics
A file system is a logical collection of files on a partition or disk. A partition is a container for information and can span an …
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Unix / Linux – Regular Expressions with sed Command
A regular expression is a string that can be used to describe several sequences of characters. Regular expressions are used by several different Unix commands, …
Unix / Linux – Shell Manpage Help
All the Unix commands come with a number of optional and mandatory options. It is very common to forget the complete syntax of these commands. …
Unix / Linux – Shell Functions
In this chapter, we will discuss in detail about the shell functions. Functions enable you to break down the overall functionality of a script into …
Unix / Linux – Shell Input/Output Redirections
In this chapter, we will discuss in detail about the Shell input/output redirections. Most Unix system commands take input from your terminal and send the …
Unix / Linux – Shell Quoting Mechanisms
The Metacharacters Unix Shell provides various metacharacters which have special meaning while using them in any Shell Script and causes termination of a word unless …
Unix / Linux – Shell Substitution
What is Substitution? The shell performs substitution when it encounters an expression that contains one or more special characters. Example Here, the printing value of …
