Shell Scripting

How to Use Korn Shell (Ksh) Let Statement

The Korn Shell let Statement The let statement is an alternative to the ((…)) statement. Type the arithmetic …

Quoting Characters With the exception of the letters and the digits, practically every key on the keyboard is a …

Shell Variables Shell variables are capitalized by convention. The shell maintains two lists of variables: Those local …

Creating Shell Scripts A shell script is a text file that contains a sequence of UNIX commands. The shell script is …

Using the test Command The test command is used for testing conditions. This command is very useful in shell scripts. …

Shell Scripts Shell scripts are text ﬁles that automate a series of UNIX environment-based commands that otherwise must …

When used in shell scripts, functions are a way of isolating a segment of code so that it can be called repeatedly …

Users can add as many elif clauses as they want into an if/then/elif/then/else statement to test as many conditions as …

One place where environment variables are used is in initializing the bash environment upon user login. When a user logs …

The shell and scripts use variables to store data; some variables can be passed to sub-processes along with their …

Simple shell scripts represent a collection of commands which are executed from beginning to end. Conditional structures …