Basics of Unix

• Features of Unix
• Flavors of Unix/Linux
• Unix Architecture
• Unix file systems(Dir structure)

Shell scripting basics

• What is shell scripting?
• Why to write shell script?
• How to write shell scripts?
• Meta data in shell scripts
• Code in shell scripting
• Executing shell script
• Debugging shell scripts

Bash Shell abilities

• Bash Shell Shortcuts
• Command chaining
• history
• alias
• Variables(System and user defined)
• Quotes(single, double and inverted)
• Brackets(square, flower, normal)
• Redirect operators(input, Output, Pipe, Error)
• wild cards(*, ?)
• Escape characters(/n, r etc)

Commands

• System info commands(uname, hostname, $SHELL, tty, who, env)
• Viewing files(head, tail, vi, cat, more, less, pg)
• Simple filters(grep, cut, paste)
• Sorting & Compare(sort, uniq, cmp, diff, tr)
• Regular expressions(Basic, Interval and extended)
• Advanced filters(AWK and SED)
• find command
• Miscellaneous commands

Control/Conditional statements

• test command
• eval command
• expr command
• $(( ))
• &&, || statements
• Assignment, Arithmetic, Bitwise, Logical operators
• numerical, string, file tests
• if statements
• For loop
• While loop
• Untill loop
• case statement
• Break, sleep, continue, exit
• Functions