Advanced Linux Tools & Shell Scripts

Introduction to Shells

• The various shells & versions differences.
• What’s new in bash v.3   

Advanced Unix tools – overview & review 

• Wild Cards
• pipes
• head/tail
• cut
• tr
• sort
• advanced grep options 

Variables

• Using  & Defining
• Environment Variables (local & “global”)
•  Predefined variables & System files

Handling Parameters

• positional parameters
• Interactive interface  

Making Decisions

• The if statement  
• Shell build in conditions
• Exit status

Loops

• The “while” loop
• The “for each” loop
• The “for” loop
• Seq  

Interactive user interface (optional)

• Using dialog
• Zenity GUI dialog box
• Kdialog GUI dialog box

Arithmetic in the Shell

Debugging in the Shell

Regular Expressions

• RE “wild cards”
• RE quantifiers
• RE Anchor

Sed 

• Find & replace
• Using RE with sed
• Nested sed
• sed file & sed script   

awk- basic Introduction and implementations

• Basic Unix/Linux tools knowledge (file manipulations, permissions and more…)    
• Basic programming understanding (any Programming language will do)