UNIX : Array in Shell Scripting. How to enter array elements and display them with loop
UNIX : Array in Shell Scripting. How to enter array elements and display them with loop
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UNIX and SHELL PROGRAMMING
Introduction to UNIX:
Introduction to SHELL PROGRAMMING
The UNIX File System:
• Hierarchical Structure
• Directories:
• Files:
• Navigation Commands:
o pwd:
o ls:
o cd:
o mkdir:
o rmdir:
• File Manipulation Commands:
o cat:
o cp:
o mv:
o rm:
o touch:
The Shell:
• Types: Bourne shell (sh), C shell (csh), Korn shell (ksh), Bash (Bourne-Again Shell), Zsh.
• Features: Command history, command-line editing, job control, input/output redirection, pipes.
Shell Scripting:
• Basic Scripting Elements:
o Input/Output: echo, read.
o Conditional Statements: if-else, case.
o Loops: for, while.
• Permissions: chmod
Essential UNIX Utilities and Concepts:
• Filters: grep, sed, awk (for text processing).
• Pipes (|):
• Redirection :
• Permissions: chmod, chown, chgrp (manage file and directory access).
• Processes: ps, top, kill (manage running programs).
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