VARIABLES IN SHELL SCRIPTING – LINUX / UNIX || LINUX SHELL SCRIPTING || VARAIBLES IN LINUX / UNIX

Variable – Alternate name for memory locations

Variable Names
1. Variable name should start with either alphabet or underscore
2. Variable name should not contain any special characters
other than underscore

Scalar Variables
Normal variables are scalar variables

Defining Variable
variable_name=variable_value / expression

Accessing Variables
prefix variable with $
Ex: a=10
$a

Read-only Variable
readonly variable_name

Unsetting Variable
unset variable_name

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https://youtu.be/eAoLQwGpWJs

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https://youtu.be/pCxej5EPID8

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https://youtu.be/ZRDxr7RKPaM

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https://youtu.be/rFwdniyo0CM

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https://youtu.be/GKGZtoC-n_c

COMM COMMAND IN LINUX / UNIX || FILTERS IN UNIX || COMM IN LINUX || LINUX COMMANDS
https://youtu.be/rdb35omVxEk

CAL & SLEEP COMMANDS IN LINUX / UNIX || CALENDAR COMMAND || SLEEP COMMAND || LINUX / UNIX COMMANDS
https://youtu.be/8KotxgcquUI

DATE COMMAND IN LINUX OR UNIX || DATE COMMAND || LINUX COMMANDS
https://youtu.be/cyUgYl8ebAQ

ECHO – ZIP – UNZIP – MAN COMMANDS IN LINUX / UNIX || LINUX COMMANDS || UNIX COMMANDS
https://youtu.be/qC8sSKvyvzA